Mercury MotorGuide VariMAX User Manual

eng i

Thank You

Thank you for choosing MotorGuide® VariMAX™. With VariMAX,
MotorGuide capitalized on many years of experience to provide
you with a motor designed to deliver Digital Variable Speed Control
and maximum time on the water.

We designed VariMAX with a BluVis™ Function Display to show
precise speed setting and battery voltage so you are always in
control. The VariMAX Digital Advantage lets you dial in the exact
speed for your boat to match the fishing conditions of the day while
providing significantly longer run times on your battery charge.

The VariMAX motor and its controls are designed to be very
intuitive. You will need to properly install the handle, so please take
the time to read this manual. Remember to keep your receipt and
immediately register your trolling motor. A warranty card is
enclosed or you can complete registration on the internet at
www.motorguide.com.

At MotorGuide, we believe there are some things you should Never
Stop doing.

NEVER STOP LEARNING, NEVER STOP IMPROVING,
AND NEVER, EVER STOP FISHING.

Warranty Message

The product you purchased comes with a Limited Warranty from
MotorGuide. The terms of the policy are set forth in the Warranty
Information section of this manual. The policy statement contains
a description of the duration of coverage, important disclaimers
and limitations of damages, and other related information.
Please review this important information.

The description and specifications contained herein were in effect
at the time this manual was approved for printing. MotorGuide,
whose policy is one of continued improvement, reserves the right
to discontinue models at any time, to change specifications,
designs, methods, or procedures without notice and without
incurring obligation.

MotorGuide, Lowell, Michigan U.S.A.
Litho in U.S.A.

© 2010 Mercury Marine

VariMAX 90-8M4002696 1010

ii eng

© 2010, Mercury Marine. All Rights Reserved. Reproduction in whole
or in part without permission is prohibited.

VariMAX and BluVis are trademarks of Brunswick Corporation.
Mercury, Mercury Marine, MerCruiser, Mercury MerCruiser, Mercury

Racing, MotorGuide, Gator, Machete, Mercury Precision Parts,
Mercury Propellers, Mariner, Quicksilver, #1 On The Water, Alpha,
Bravo, Bravo Two, Pro Max, OptiMax, Sport‑Jet, K‑Planes,
MerCathode, SmartCraft, Total Command, VesselView, Zero Effort,
Zeus, M with Waves logo, Mercury with Waves logo, and SmartCraft
logo are all registered trademarks of Brunswick Corporation. Mercury
Product Protection logo is a registered service mark of Brunswick
Corporation.

eng iii

Warranty Information

MotorGuide Limited Warranty..............................................................1

General Information

Recording Serial Number....................................................................4

Boater's Responsibilities.....................................................................5

Protecting People in the Water............................................................5

Passenger Safety Message.................................................................6

Safe Boating Suggestions...................................................................6

Product Overview and Assembly

Component Identification.....................................................................8

Attaching the Handle...........................................................................9

Extending and Retracting the Handle................................................12

Installing the Propeller.......................................................................13

Wiring and Battery Information

Battery Precautions...........................................................................15

Standard Practices and Procedures..................................................15

Battery Recommendations................................................................15

BluVis Battery Voltage Indicator........................................................16

Single, Parallel, and Series Circuit Battery Connection.....................17

Mount Installation

Transom Mount Installation...............................................................21

Pontoon Mount Installation................................................................21

Gator 20.8 Breakaway Installation.....................................................22

Gator Flex 360...................................................................................24

iv eng

Operation

Installing the Motor into the Bow Mount............................................27

Removing the Motor from the Bow Mount.........................................27

Stowing the Trolling Motor.................................................................27

Deploying the Trolling Motor..............................................................29

Adjusting the Steering Tension..........................................................31

Adjusting the Motor Depth.................................................................31

Speed Control....................................................................................32

Direction Control................................................................................33

Maintenance and Storage

Trolling Motor Care............................................................................37

Inspection and Maintenance Schedule.............................................37

Storage Preparation..........................................................................38

Battery Inspection..............................................................................38

Propeller Replacement......................................................................39

Custom Applications

Repositioning the Top Housing.........................................................41

Setting the Direction Control Switch..................................................42

Motor Control Wiring..........................................................................46

Owner Service Assistance

Troubleshooting.................................................................................47

Service Assistance............................................................................48

Mercury Marine Service Offices........................................................48

WARRANTY INFORMATION

eng 1

MotorGuide Limited Warranty

KEEP YOUR ORIGINAL PURCHASE RECEIPT OR BILL OF SALE.

1. For recreational use customers, MotorGuide electric trolling motors
are warranted to the original retail purchaser to be free from defects
in material or workmanship for two (2) years.

2. To obtain warranty service, the purchaser should deliver or return
the unit (postage prepaid and insured) to any MotorGuide
authorized service dealer. DO NOT RETURN TO PLACE OF
PURCHASE unless they are an authorized service center.
Products returned by mail should be carefully packaged and
include a note describing the nature of the problem and/or service
requested, customer address and phone number. A copy of the
receipt, Bill of Sale, registration verification, or other proof of
purchase is required with the return of the product for warranty
consideration. Warranty claims will not be accepted without
presentation of purchase receipt for trolling motor, other verification
of registration, or bill of sale for boat package.

3. MotorGuide, at its discretion, will repair or replace items covered
under the terms of this warranty. Neither MotorGuide nor
MotorGuide service dealers are responsible for damages to
MotorGuide products due to repairs performed by anyone other
than an authorized MotorGuide service dealer. Neither MotorGuide
nor Mercury Marine is responsible for failure or damage caused by
improper installation, set‑up, preparation, or previous service or
repair errors.

4. For commercial use and government use customers, MotorGuide
electric trolling motors are warranted to the original retail purchaser
to be free from defects in material or workmanship for one (1) year.
Commercial use is defined as any work or employment‑related use
of the product, or any use of the product which generates income,
for any part of the warranty period, even if the product is only
occasionally used for such purpose such as rental fleets, guides,
fish camps, or similar operations. Warranty is not transferable to
any subsequent purchaser. The Mercury Product Protection plan
is not available to commercial use or government use customers.

WARRANTY INFORMATION

2 eng

5. Warranty coverage is available to customers that purchase from
an authorized dealer or retailer that is authorized by MotorGuide
Marine to distribute the product in the country in which the sale
occurred. Warranty coverage and duration varies by the country in
which the owner resides. This warranty applies to MotorGuide
trolling motors sold and used in the United States. This limited
warranty begins on the date the product is first sold to a purchaser
or the date on which the product is first put into service, whichever
occurs first. MotorGuide accessories are covered by this limited
warranty for a coverage period of one (1) year from the date of retail
sale. The repair or replacement of parts, or the performance of
service under this warranty, does not extend the life of this warranty
beyond its original expiration date. Promotional warranties are not
included in this statement and coverage may vary by promotion.
Product either sold or put into service more than six years from date
of manufacture is excluded from warranty coverage.

6. This warranty does not apply to normal worn parts, for example,
worn cables, adjustments, or product damage due to; 1) neglect,
lack of maintenance, accident, abnormal operation, or improper
installation or service; 2) abuse, such as, bent metal columns, bent
armature shafts, broken control cables, etc., accidents,
modifications, misuse, excessive wear or damage caused by an
owner’s failure to provide reasonable and necessary installation or
care; 3) use of an accessory or part not manufactured by
MotorGuide or Mercury; 4) alteration or removal of parts; 5)
opening the lower unit (motor) by anyone other than an authorized
MotorGuide service center will void this warranty.

7. We reserve the right to improve the design of any trolling motor
without assuming any obligation to modify any trolling motor
previously manufactured.

WARRANTY INFORMATION

eng 3

8. All serialized "Service‑Repair" trolling motors receive a one (1) year
warranty. Non‑serialized "Service‑Repair" electric trolling motors
are NOT warranted. "Service‑Repair" motor denotes a trolling
motor sold by MotorGuide that may be used, but has been
inspected and may have had minor repairs. Original retail
purchaser of a "Service‑Repair" motor is the first purchaser of the
motor after it is denoted as "Service‑Repair." "Service‑Repair"
motors have a blue sticker on the battery cable and box denoting
"Manufacturer Certified Service‑Repair Motor."

9. This warranty will not apply to 1) haul‑out, launch, towing and
storage, transportation charges and/or travel time, telephone or
rental charges of any type, inconvenience, or loss of time or
income, or other consequential damages; or 2) removal or
replacement of boat partitions or material because of boat design
for necessary access to the Product; or 3) disconnection and
reconnection of hard‑wired trolling motors.

10.TERMINATION OF COVERAGE: Warranty coverage may be
terminated for repossessed product, or product purchased at
auction, from a salvage yard, from a liquidator, from an insurance
company, from unauthorized marine dealers or boatbuilders, or
other third party entities.

11.ALL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE
EXCLUDED FROM THIS WARRANTY, WARRANTIES OF
MERCHANTABILITY AND FITNESS ARE EXCLUDED FROM
THIS WARRANTY, IMPLIED WARRANTIES ARE LIMITED TO
THE LIFE OF THIS WARRANTY. SOME STATES DO NOT
ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY
LASTS OR THE EXCLUSION OR LIMITATION OF INCIDENTAL
OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND
YOU MAY ALSO HAVE OTHER LEGAL RIGHTS WHICH MAY
VARY FROM STATE TO STATE.

For Your Records:

Model Number _______________________________

Serial Number _______________________________

GENERAL INFORMATION

4 eng

Recording Serial Number

Record the serial number for future reference. For warranty purposes,
complete the enclosed warranty card or register your trolling motor at
www.motorguide.com.

TRANSOM MOUNT

The transom mount serial number decal is located underneath the
bottom cover.

a - Serial number
b - Model identification number
c - Voltage

a

b

c

45651

GENERAL INFORMATION

eng 5

Boater's Responsibilities

The operator (driver) is responsible for the correct and safe operation
of the boat and safety of its occupants and general public. It is strongly
recommended that each operator (driver) read and understand this
entire manual before operating the trolling motor.

Be sure at least one additional person on board is instructed in the basic
operation of the trolling motor in case the driver is unable to operate the
boat.

Protecting People in the Water

WHILE YOU ARE TROLLING

It is very difficult for a person in the water to take quick action to avoid
a boat heading in their direction, even at slow speeds.

21604

Always slow down and exercise extreme caution any time you are
boating in an area where there might be people in the water.

WHILE THE BOAT IS STATIONARY

!

WARNING

A spinning propeller, a moving boat, or any solid device attached to
the boat can cause serious injury or death to swimmers. Stop the
trolling motor immediately whenever anyone in the water is near your
boat.

Shut off the trolling motor before allowing people to swim or be in the
water near your boat.

GENERAL INFORMATION

6 eng

Passenger Safety Message

Whenever the boat is in motion, observe the location of all passengers.
A sudden reduction in boat speed, such as a sharp change of boat
direction, could throw them off the boat.

Safe Boating Suggestions

In order to safely enjoy the waterways, familiarize yourself with local
and other governmental boating regulations and restrictions, and
consider the following suggestions.

Use flotation devices. It is the law to have an approved personal flotation
device of suitable size for each person aboard and have it readily
accessible.

Do not overload your boat. Most boats are rated and certified for
maximum load (weight) capacities, refer to your boat capacity plate. If
in doubt, contact your dealer or the boat's manufacturer.

Perform safety checks and required maintenance. Follow a regular
schedule and ensure all repairs are made properly.

Never be under the influence of alcohol or drugs while boating (it is the
law). Alcohol or drug use impairs your judgment and greatly reduces
your ability to react quickly.

Passenger boarding. Stop the trolling motor whenever passengers are
boarding or unloading.

Be alert. The operator of the boat is responsible by law to maintain a
proper lookout by sight and hearing. The operator must have an
unobstructed view particularly to the front. No passengers, load, or
fishing seats should block the operators view when operating the boat.

Underwater hazards. Reduce speed and proceed with caution
whenever navigating in shallow water.

Tripping hazards. To avoid a trip hazard, route all cables and wiring
neatly and out of the way.

GENERAL INFORMATION

eng 7

Report accidents. Boat operators are required by law to file a Boating
Accident Report with their state boating law enforcement agency when
their boat is involved in certain boating accidents. A boating accident
must be reported if 1) there is loss of life or probable loss of life, 2) there
is personal injury requiring medical treatment beyond first aid, 3) there
is damage to boats or other property where the damage value exceeds
$500.00 or 4) there is complete loss of the boat. Seek further assistance
from local law enforcement.

PRODUCT OVERVIEW AND ASSEMBLY

8 eng

Component Identification

TRANSOM MOUNT

a - Top housing
b - BluVis function display
c - Cam lock
d - Extendable speed control

handle

e - Serial number
f - Battery cables
g - Tilt lock release lever
h - Clamp bracket
i - Column
j - Lower unit
k - Propeller
l - Steering tension collar
m -Depth adjustment collar

a

b

c

d

e

f

g

h

i

j

k

l

45654

m

PRODUCT OVERVIEW AND ASSEMBLY

eng 9

VARIMAX BOW MOUNT

a - Top housing
b - BluVis function display
c - Cam lock
d - Extendable speed

control handle

e - Serial number
f - Battery cables
g - Gator 20.8 breakaway
h - Decket
i - Gator Flex 360
j - Column
k - Propeller
l - Lower unit
m -Steering tension collar
n - Depth adjustment

collar

Attaching the Handle

NOTE: For proper installation, assemble the trolling motor on a flat, level
surface.

1. Ensure the battery cables are disconnected from the power source.

i

h

a

g

l

k

j

e

d

c

b

f

h

i

m

n

45746

PRODUCT OVERVIEW AND ASSEMBLY

10 eng

2. Align the handle to the top housing using the flat groove on the
extension handle. The handle extension spring should face up.

a - Top housing
b - Handle extension spring
c - Cam lock
d - Handle

3. Press the handle extension spring in while inserting the handle into
the top housing. Adjust the handle to the desired length.

a - Handle extension spring

a

b

c

d

45687

a

45690

PRODUCT OVERVIEW AND ASSEMBLY

eng 11

4. Rotate the cam lock clockwise 180°. Move the cam lock flush
against the top housing.

180°

39062

5. To secure the handle, hold the handle steady while rotating and
tightening the cam lock clockwise 180°. Verify that the flat surfaces
of the handle, cam lock, and top housing are in alignment.

a - Top housing
b - Cam lock
c - Handle

a

b

c

45694

PRODUCT OVERVIEW AND ASSEMBLY

12 eng

Extending and Retracting the Handle

1. Firmly grasp the handle, then rotate and loosen the cam lock
counterclockwise 180°.

180°

45695

2. Extend or retract the handle to the desired length.

38656

Extending handle

38662

Retracting handle

PRODUCT OVERVIEW AND ASSEMBLY

eng 13

3. To secure the handle, hold the handle steady while rotating and
tightening the cam lock clockwise 180°. Verify that the handle, cam
lock, and top housing are in alignment.

45684

Cam lock and top housing in alignment

Installing the Propeller

!

WARNING

Performing service or maintenance without first disconnecting the
battery can cause product damage, personal injury, or death due to
fire, explosion, electrical shock, or unexpected motor starting. Always
disconnect the battery cables from the battery before maintaining,
servicing, installing, or removing motor components.

1. Rotate the motor shaft to insert the propeller pin horizontally.

a - Propeller pin

2. Install the propeller onto the motor shaft by engaging the propeller
onto the propeller pin.

a

45685

PRODUCT OVERVIEW AND ASSEMBLY

14 eng

3. Install the propeller nut. Tighten securely.

a - Propeller pin
b - Propeller
c - Propeller nut
d - Propeller

wrench

4. Use a MotorGuide propeller wrench or pliers to tighten the propeller
nut another ¼ turn.

Recommended MotorGuide Accessory Description Part Number

MotorGuide prop wrench kit MGA050B6

a

b

c

d

45696

WIRING AND BATTERY INFORMATION

eng 15

Battery Precautions

!

WARNING

An operating or charging battery produces gas that can ignite and
explode, spraying out sulfuric acid, which can cause severe burns.
Ventilate the area around the battery and wear protective equipment
when handling or servicing batteries.

When charging batteries, an explosive gas mixture forms in each cell.
Part of this gas escapes through holes in the vent plugs and may form
an explosive atmosphere around the battery if ventilation is poor. This
explosive gas may remain in or around the battery for several hours
after it has been charged. Sparks or flames can ignite this gas and
cause an internal explosion, which may shatter the battery.

The following precautions should be observed to prevent an explosion:

1. Do not smoke near batteries being charged or which have been
charged very recently.

2. Do not break live circuits at terminals of batteries, because a spark
usually occurs at the point where a live circuit is broken. Always be
careful when connecting or disconnecting cable clamps on
chargers. Poor connections are a common cause of electrical arcs
which cause explosions.

3. Do not reverse polarity of battery terminal to cable connections.

Standard Practices and Procedures

• Do not use the main engine battery to power the trolling motor.

• Disconnect the trolling motor from the battery when charging and
after each use.

• Route the trolling motor wires on the opposite side of the boat from
other miscellaneous boat wiring.

• Connect boat accessories directly to the main engine battery.

Battery Recommendations

• Use a 12 volt, deep cycle marine battery.

• Install a 50 amp manual reset circuit breaker in line with the trolling
motor positive leads within 180 cm (72 in.) of the batteries.

WIRING AND BATTERY INFORMATION

16 eng

• Use 13 mm (6 gauge) battery cables if extending the existing wire
beyond the standard battery cable.

Recommended MotorGuide Accessory Description Part Number

Trolling motor power plug 8M4000953

Trolling motor sp (receptacle) 8M4000954

50 amp alligator clips 8M4000287

6 gauge battery cable and terminals with 50 amp manual reset
circuit breaker

MM309922T

50 amp manual reset circuit breaker MM5870

BluVis Battery Voltage Indicator

Use the BluVis function display to determine battery voltage level. The
battery indicator will display the voltage for four seconds when the motor
is connected to the battery and when the speed control is turned off.
Refer to the diagram below to reference remaining battery voltage for
12 and 24 volt battery connections.

27 volts
26 volts
25 volts
24 volts

23 volts
22 volts

21 volts
20 volts
19 volts
18 volts

13.5 volts
13 volts

12.5 volts
12 volts

11.5 volts
11 volts

10.5 volts
10 volts

9.5 volts
9 volts

12 volt

24 volt

45682

WIRING AND BATTERY INFORMATION

eng 17

Single, Parallel, and Series Circuit Battery Connection

!

CAUTION

Disconnecting or connecting the battery cables in the incorrect order
can cause injury from electrical shock or can damage the electrical
system. Always disconnect the negative (‑) battery cable first and
connect it last.

Recommended MotorGuide Accessory Description Part Number

6 gauge battery cable and terminals with 50 amp manual reset
circuit breaker

MM309922T

50 amp manual reset circuit breaker MM5870

SINGLE 12 VOLT BATTERY CONNECTION

1. Install a 50 amp manual reset circuit breaker in line with the trolling
motor power cable positive lead and the battery positive (+)
terminal.

2. Connect the black trolling motor power cable negative lead to the
battery negative (–) terminal.

3. Connect a jumper cable (common ground bond) from the trolling
motor battery negative (–) terminal to the engine battery negative
(–) terminal.

WIRING AND BATTERY INFORMATION

18 eng

NOTE: Vessels with multiple batteries, must have a common ground
bonding circuit. Not establishing a common ground between the vessel
batteries, may cause severe corrosion, electrolysis, or an electrical
shock.

a - Power cables to trolling motor
b - 50 amp manual reset circuit breaker
c - Trolling motor battery
d - Engine starting battery
e - Power cables to engine
f - Common ground bond

12 VOLT PARALLEL CIRCUIT BATTERY CONNECTION

1. Install a 50 amp manual reset circuit breaker in line with the trolling
motor power cable positive lead and the battery positive (+)
terminal.

2. Connect a jumper cable between both of the trolling motor battery
positive (+) terminals.

3. Connect a jumper cable between both of the trolling motor battery
negative (–) terminals.

4. Connect the black trolling motor power cable negative lead to the
battery negative (–) terminal.

RED

BLK

BLK

REDRED

abcde

44291

f

WIRING AND BATTERY INFORMATION

eng 19

5. Connect a jumper cable (common ground bond) from the trolling
motor battery negative (–) terminal to the engine battery negative
(–) terminal.

NOTE: Vessels with multiple batteries, must have a common ground
bonding circuit. Not establishing a common ground between the vessel
batteries, may cause severe corrosion, electrolysis, or an electrical
shock.

a - Power cables to trolling motor
b - 50 amp manual reset circuit breaker
c - Trolling motor batteries
d - Engine starting battery
e - Power cables to engine
f - Common ground bond

24 VOLT SERIES CIRCUIT BATTERY CONNECTION

1. Install a 50 amp manual reset circuit breaker in line with the trolling
motor power cable positive (+) lead and battery "c" positive (+)
terminal.

2. Connect a jumper wire (reference grey) between the negative (–)
terminal on battery "c" to the positive (+) terminal on battery "d."

3. Connect the trolling motor negative (–) lead to the negative (–)
terminal on battery "d."

RED

BLK

BLK

REDRED

abcde

c

44292

f

WIRING AND BATTERY INFORMATION

20 eng

4. Connect a jumper cable (common ground bond) from the trolling
motor battery "d" negative (–) terminal to the engine battery
negative (–) terminal.

NOTE: Vessels with multiple batteries, must have a common ground
bonding circuit. Not establishing a common ground between the vessel
batteries, may cause severe corrosion, electrolysis, or an electrical
shock.

a - Power cables to trolling motor
b - 50 amp manual reset circuit breaker
c - Trolling motor battery "c"
d - Trolling motor battery "d"
e - Series cable connection
f - Common ground bond
g - Engine starting battery
h - Power cables to engine

RED

BLK

BLK

REDRED

abc

44328

f

e

g

d

h

MOUNT INSTALLATION

eng 21

Transom Mount Installation

NOTE: The transom mount will fit transoms up to 8.25 cm (3.25 in.)
thick.

IMPORTANT: Overtightening the transom clamp screws can weaken
or damage the mount bracket.

1. Place the transom mount onto the transom of the boat.

45673

2. Tighten the transom clamp screws securely.

Pontoon Mount Installation

IMPORTANT: Choose an area on the deck which allows 2.5 cm
(1 in.) clearance between the column and the bow of the boat for all
motor positions.

1. Select an appropriate area on the deck of the boat to install the
mount.

39066

MOUNT INSTALLATION

22 eng

2. Place the pontoon mount base on the surface of the boat deck. Use
the mount base as a template to mark the location of the mount
holes.

37927

Pontoon mount holes

IMPORTANT: Using a larger drill bit, countersink the holes on
fiberglass boats to prevent the gel‑coat from cracking.

3. Drill the mounting holes with a 7 mm (1/4 in.) diameter drill bit.
Remove any debris.

4. Install four stainless steel washers and locking nuts onto the
mounting screws underneath the boat deck. Tighten securely.

Gator 20.8 Breakaway Installation

37805

Gator 20.8 Breakaway

IMPORTANT: Choose an area on the deck which allows a 7.6 cm
(3 in.) clearance between the column and the bow of the boat for all
motor positions.

MOUNT INSTALLATION

eng 23

1. Select an appropriate area on the deck of the boat to install the
mount. Ensure that the forward mounting screws will not penetrate
the hull.

38094

Mount on deck

2. Place the bow mount base on the surface of the boat deck. Use the
mount base as a template to mark the locations of the front
mounting holes in the plastic decket and the rear mounting holes
on the mount base.

38097

Mount base mounting holes

3. Drill the mounting holes with a 7 mm (1/4 in.) diameter drill bit.
Remove any debris.

4. Redrill each mounting hole with a 13 mm (1/2 in.) diameter drill bit.

IMPORTANT: Use a larger drill bit to countersink the holes on
fiberglass boats to prevent cracking.

MOUNT INSTALLATION

24 eng

5. Insert the rubber mounting isolators into the mounting holes.
Position the isolators in line with the mount base with the wider side
toward the outside of the mount base bracket.

39076

6. Place the mount base on the isolators and align the holes. Install
the two longer screws into the front mounting holes and the two
shorter screws into the rear mounting holes. Tighten all of the
mounting screws securely.

IMPORTANT: The mount base must lay flush against the isolators
before being bolted to the deck or the mount will bind making it difficult
or impossible to unlatch.

7. The bracket should fasten securely and evenly with the latch pins
in the latch. The bracket should release with a light, quick snap of
the rope handle.

Gator Flex 360

37806

Gator Flex 360

IMPORTANT: Choose an area on the deck which allows a 7.6 cm
(3 in.) clearance between the column and the bow of the boat for all
motor positions.

MOUNT INSTALLATION

eng 25

1. Select an appropriate area on the deck of the boat to install the
mount. Ensure that the forward mounting screws will not penetrate
the hull.

39074

Mount on deck

2. Place the bow mount base on the surface of the boat deck. Use the
mount base as a template to mark the locations of the front
mounting holes in the plastic decket and the rear mounting holes
on the mount base.

39075

Mount base mounting holes

3. Drill the mounting holes with a 7 mm (1/4 in.) diameter drill bit.
Remove any debris.

IMPORTANT: Use a larger drill bit to countersink the holes on
fiberglass boats to prevent cracking.

4. Insert the rubber washers between the base of the mount and the
boat mounting surface. Install the steel washers and nylon locking
nuts onto the mounting screws underneath the boat deck. Tighten
securely with a Phillips screwdriver and 11 mm (7/16 in.) wrench.

MOUNT INSTALLATION

26 eng

IMPORTANT: If necessary, shim the rubber washers with 25 mm
(1 in.) stainless steel washers to create a level mounting surface.

5. The mount base should fasten securely and evenly with the latch
pins in the latch. The base should release with a light, easy pull on
the rope handle.

6. Secure the decket to the mount base with the decket screws.

OPERATION

eng 27

Installing the Motor into the Bow Mount

1. Turn the bracket door knob counterclockwise to loosen and open
the bracket door.

2. Place the motor column into the bracket and close the door.

3. Turn the bracket door knob clockwise to tighten the motor column
in the bracket.

a - Bracket door knob

Removing the Motor from the Bow Mount

1. Turn the bracket door knob counterclockwise to loosen and open
the bracket door.

2. Remove the motor column from the bracket and close the door.

Stowing the Trolling Motor

!

WARNING

Rotating propellers can cause serious injury or death. Never start or
operate the motor out of water.

!

CAUTION

Moving parts, such as hinges and pivot points, can cause serious
injury. Keep away from moving parts when stowing, deploying, or
tilting the motor.

a

44907

OPERATION

28 eng

TRANSOM MOUNT

IMPORTANT: Ensure the mount is stowed while using the main engine
or trailering the boat. Ensure the steering tension collar is tightened
securely.

1. Firmly grasp the column and push the tilt lever towards the column.

a - Column
b - Tilt lever

IMPORTANT: Do not use the handle to stow or tilt the motor.

2. Tilt the motor toward you by pulling on the column while
simultaneously holding the tilt lever.

3. Once the motor is stowed, release the tilt lever. Verify the lock pin
is securely engaged. The motor should not tilt if the lock pin is
properly engaged.

4. Move the depth collar flush against the steering tension collar.

a

b

45664

OPERATION

eng 29

5. Adjust the steering friction by turning the steering tension collar
knob.

a - Steering tension

collar

b - Depth collar
c - Column
d - Tilt lever
e - Lock pin

Deploying the Trolling Motor

!

WARNING

Rotating propellers can cause serious injury or death. Never start or
operate the motor out of water.

!

CAUTION

Moving parts, such as hinges and pivot points, can cause serious
injury. Keep away from moving parts when stowing, deploying, or
tilting the motor.

!

CAUTION

Avoid possible serious injury from the motor dropping suddenly when
adjusting the motor depth. Firmly grasp the motor shaft with one hand
when raising or lowering the motor.

TRANSOM MOUNT

IMPORTANT: Do not use the handle to tilt or deploy the motor.

a

b

45665

c

d

e

OPERATION

30 eng

1. Firmly grasp the column and engage the tilt lever.

a - Column
b - Tilt lever

2. Adjust the angle of the motor to the desired position while
simultaneously holding the tilt lever.

3. Release the tilt lever. Verify that the lock pin is securely engaged.

4. Grasp the shaft with one hand and pinch the depth collar to lower
the trolling motor to the desired depth.

a - Tilt lever
b - Lock pin
c - Depth collar

a

b

45674

a

b

45675

c

OPERATION

eng 31

Adjusting the Steering Tension

Adjust the steering tension collar to increase or decrease the effort to
turn the motor freely.

1. To increase steering tension or to fasten the column in a fixed
position, tighten the friction knob clockwise.

2. To unfasten the column from a fixed position or to reduce steering
tension, turn the friction knob counterclockwise.

a - Friction knob
b - Steering tension collar

Adjusting the Motor Depth

!

CAUTION

Avoid possible serious injury from dropping the motor when adjusting
the motor depth. Firmly grasp the motor shaft with one hand when
raising or lowering the motor.

Adjust the depth of the motor to improve trolling motor performance in
various water depths.

IMPORTANT: When adjusting the motor depth, ensure the lower unit
is fully submerged to avoid propeller cavitation.

a

b

45670

OPERATION

32 eng

1. Firmly grasp the column with one hand while holding the depth
collar.

2. Pinch the depth collar until the motor column slides freely.

3. Raise or lower to the desired depth.

a - Column
b - Depth collar

Speed Control

NOTE: Speed control is operable regardless of handle position.

a

b

45671

OPERATION

eng 33

Rotate the handle clockwise to increase speed in both forward and
reverse directions. The BluVis function display indicates speed setting.

a - Rotate the handle clockwise
b - BluVis function display with speed settings

Direction Control

The push‑forward, pull‑reverse direction control lets you increase the
speed by turning the handle clockwise, whether in forward or reverse.
To shift and change the direction of the propeller, simply pull back or
push forward on the handle. The BluVis function display shows your
relative speed setting and direction when the propeller is moving.

IMPORTANT: To shift the motor and change the direction of the
propeller, the power must be below 60% to provide instant direction
control for forward and reverse. The motor will only shift if below the
60% speed setting to protect the motor from damage.

100%

90%
80%
70%
60%
50%
40%
30%
20%

10%

a

b

44855

OPERATION

34 eng

TRANSOM MOUNT APPLICATION

To move the boat forward, pull the handle. To move the boat in reverse,
push the handle. The BluVis function display indicates the motor
direction.

39222

Reverse

39101

Forward

TRANSOM MOUNT—BACKTROLLING APPLICATION

To use the transom mount for backtrolling, reverse the top housing
position and toggle the direction control switch. Refer to Setting the
Direction Control Switch.

OPERATION

eng 35

To backtroll, push the handle. To reverse backtroll, pull the handle. The
BluVis function display indicates the motor direction.

39223

Backtroll

39102

Backtroll reverse

OPERATION

36 eng

BOW MOUNT APPLICATION

To move the boat forward, push the handle. To move the boat in
reverse, pull the handle. The BluVis function display indicates the motor
direction.

39224

39103

Reverse Forward

MAINTENANCE AND STORAGE

eng 37

Trolling Motor Care

To keep your trolling motor in the best operating condition and retain its
dependability, your trolling motor must receive periodic inspections and
maintenance. Keep it maintained properly to ensure the safety of you
and your passengers.

!

WARNING

Neglecting to inspect, maintain, or repair your trolling motor can result
in product damage or serious injury or death. Do not perform
maintenance or service on your trolling motor if you are not familiar
with the correct service and safety procedures.

Record all maintenance performed and save maintenance work orders
and receipts.

SELECTING REPLACEMENT PARTS

Original MotorGuide Certified Tough replacement parts.

Inspection and Maintenance Schedule

BEFORE EACH USE

• Check the tightness of the battery lead connections.

• Visually inspect for loose or corroded wiring connections.

• Check the tightness of the propeller nut.

• Check the propeller blades for damage.

AFTER EACH USE

• Disconnect the battery cables from the power source or unplug the
motor from the boat.

• Check the propeller and propeller shaft for debris such as weeds
and fishing line. Remove all debris.

• Check the tightness of the propeller nut.

• Rinse the trolling motor with clean water to remove dirt and dust
that may scratch the surface.

MAINTENANCE AND STORAGE

38 eng

EVERY 100 HOURS OF USE OR ANNUALLY

• Periodically lubricate all the pivot points with a nonaerosol,
nonsolvent based lubricant.

IMPORTANT: Never use an aerosol lubricant to grease or oil any part
of the unit. Many aerosol lubricants contain harmful propellants that
can cause damage to various parts of the trolling motor.

Tube Ref

No.

Description Where Used Part No.

95

2-4-C with Teflon Pivot points 92-802859A 1

• Check the tightness of bolts, nuts, and other fasteners.

• Inspect the battery. Refer to Battery Inspection.

Storage Preparation

The major consideration in preparing your trolling motor for storage is
to protect it from corrosion and damage caused by freezing of trapped
water.

Refer to the Inspection and Maintenance Schedule and complete the
appropriate care instructions to prepare your trolling motor for storage.
Store the trolling motor in a dry location where it will not be affected by
temperatures below ‑29 °C (‑20 °F).

IMPORTANT: Trolling motors stored in temperatures below 0 °C
(32 °F) should be operated slowly for a minimum of 15 minutes before
going above 30% operation.

Battery Inspection

The battery should be inspected at periodic intervals to ensure proper
trolling motor operation.

IMPORTANT: Read the safety and maintenance instructions which
accompany your battery.

1. Ensure that the battery is secured to the vessel.

2. Ensure that the battery cable terminals are clean, tight, and
correctly installed.

3. Ensure that the battery is equipped with a battery box to prevent
accidental shorting of the battery terminals.

MAINTENANCE AND STORAGE

eng 39

Propeller Replacement

!

WARNING

Performing service or maintenance without first disconnecting the
battery can cause product damage, personal injury, or death due to
fire, explosion, electrical shock, or unexpected motor starting. Always
disconnect the battery cables from the battery before maintaining,
servicing, installing, or removing motor components.

REMOVING THE PROPELLER

1. Disconnect the battery cables from the power source.

2. While holding the propeller blade with one hand, use a propeller
wrench or pliers to remove the propeller nut.

IMPORTANT: If the propeller cannot be removed easily, hold one
blade and use a rubber mallet to lightly tap the backside of the opposite
blade. If the propeller cannot be removed, refer to Owner Service
Assistance ‑ Troubleshooting.

NOTE: If the propeller pin is bent, replace the propeller pin.

a - Propeller pin
b - Propeller
c - Propeller nut
d - Prop wrench

a

b

c

d

44934

MAINTENANCE AND STORAGE

40 eng

Recommended MotorGuide Accessory Description Part Number

MotorGuide prop wrench kit MGA050B6

INSTALLING THE PROPELLER

1. Rotate the motor shaft to insert the propeller pin horizontally.

2. Install the propeller onto the motor shaft by engaging the propeller
onto the propeller pin.

3. Install the propeller nut. Tighten the nut securely.

4. Use a MotorGuide propeller wrench or pliers to tighten the propeller
nut another ¼ turn.

CUSTOM APPLICATIONS

eng 41

Repositioning the Top Housing

VariMAX transom mount motors are configured at the factory for use
on the transom. The VariMAX motor head can be reversed (eight head
positions are available) to fit any application including bow, backtroller,
or sideways pulling applications. The BluVis lights can also be reversed
to keep the intuitive push‑pull feel and control consistent. If you have a
VariMAX bow mount or pontoon mount motor, it is already configured
for bow mount applications.

IMPORTANT: While configuring the top housing to a new position,
toggle the position switch for the appropriate mount application. Refer
to Setting the Direction Control Switch.

1. Ensure the battery cables are disconnected from the power source.

2. Loosen the top housing retaining bolt with a 5 mm diameter Allen
wrench. Do not fully remove the retaining bolt.

IMPORTANT: Do not fully remove the top housing retaining bolt or the
retaining nut may fall out. Do not raise the top housing off of the column.
Removing the top housing may disconnect the motor control wires. If
the wires disconnect, refer to Motor Control Wiring for wire orientation.

a - Allen wrench

3. Raise the top housing until the height pin disengages.

a - Height pin

a

44879

a

44885

CUSTOM APPLICATIONS

42 eng

4. Rotate the top housing to the desired position and push the top
housing back down to engage the height pin.

a - Top housing
b - Eight position settings

5. Tighten the top housing retaining bolt with an Allen wrench. Tighten
the bolt to the specified torque.

Torque Description Nm lb‑in. lb‑ft

Top housing retaining bolt 8.5 75 –

a - Allen wrench

Setting the Direction Control Switch

VariMAX motors are configured to the intuitive push‑pull direction
control. To use the transom mount on the bow of the vessel, reverse
the top housing and toggle the direction control switch to set the motor
and BluVis function display orientation for a bow application. To reverse
the top housing, refer to Repositioning the Top Housing.

1. Disconnect the battery cables from the power source.

2. Loosen the top housing retaining bolt with an Allen wrench. Do not
fully remove the retaining bolt.

38638

a

b

a

44879

CUSTOM APPLICATIONS

eng 43

IMPORTANT: Do not fully remove the top housing retaining bolt or the
retaining nut may fall out. Slowly raise the top housing off of the shaft
ensuring that the motor control wires do not disconnect. If the wires are
disconnected, refer to Motor Control Wiring.

a - Allen wrench

3. Remove the top housing from the column.

NOTE: On saltwater models, do not remove the heat sink grease on
the motor column. Heat sink grease will not wash out of clothing.

39092

Top housing removed from column

4. Turn the top housing upside down to expose the direction control
switch inside.

5. Slide the switch away from the handle.

a

44879

CUSTOM APPLICATIONS

44 eng

NOTE: If necessary, use a flathead screwdriver to slide the direction
control switch.

B

A

39225

Transom mount application (default)

39064

B

A

Bow, pontoon mount, or backtrolling application

6. Install the top housing onto the motor column.

CUSTOM APPLICATIONS

eng 45

7. Rotate the top housing to the desired position and push the top
housing back down to engage the height pin.

a - Top housing
b - Eight position settings

8. Retighten the top housing retaining bolt with an Allen wrench.
Tighten the bolt to the specified torque.

Torque Description Nm lb‑in. lb‑ft

Top housing retaining bolt 8.5 75 –

a - Allen wrench

38638

a

b

a

44879

CUSTOM APPLICATIONS

46 eng

Motor Control Wiring

!

WARNING

Performing service or maintenance without first disconnecting the
battery can cause product damage, personal injury, or death due to
fire, explosion, electrical shock, or unexpected motor starting. Always
disconnect the battery cables from the battery before maintaining,
servicing, installing, or removing motor components.

IMPORTANT: Disconnect the VariMAX motor control wiring for service
only. Do not reconfigure the motor control wiring when reorienting the
motor top housing between transom and bow applications.

NOTE: If necessary, use needle nose pliers to connect the motor control
wires to their respective terminal. Ensure the wiring connection is
secure.

RED

BLK

B

A

45692

Transom mount application

BLK

RED

A

B

45693

Bow or pontoon mount application

OWNER SERVICE ASSISTANCE

eng 47

Troubleshooting

NOTE: For service information, contact any certified MotorGuide
service center. For a full listing of MotorGuide service centers, go to
www.motorguide.com or contact any Mercury service office.

Symptom Possible Cause Resolution

Loss of power

Weak 12 volt trolling motor

battery

Check 12 volt battery charge.
Recharge or replace battery as
required.

Loose or corroded battery

connections

Inspect battery connections for
cleanliness and tightness.

Propeller is loose, damaged,

or off‑balance

Refer to Propeller
Replacement.

Wiring or electrical

connection faulty

Wire gauge from the battery to
the trolling motor is insufficient.
Six gauge wire is
recommended.

Excessive noise,

vibration

Motor shaft is bent Refer to a service center.

Propeller is loose, damaged,

or off‑balance

Refer to Propeller
Replacement.

Motor failure (all

speeds)

Weak 12 volt trolling motor

battery

Check 12 volt battery charge.
Recharge or replace battery as
required.

Loose or corroded battery

connections

Inspect battery connections for
cleanliness and tightness.

Wiring or electrical

connection faulty.

Wire gauge from the battery to
the trolling motor is insufficient.
Six gauge wire is
recommended.

Fuse on circuit breaker is

open

Replace the fuse or reset the
circuit breaker only after
determining the root cause of
the problem.

Magnets interfering with

armature

Turn off the power and manually
rotate the propeller. If the
propeller does not rotate freely
with a slight magnetic drag,
contact a service center.

OWNER SERVICE ASSISTANCE

48 eng

Symptom Possible Cause Resolution

Motor rotates in the

wrong direction

Direction control switch is in

the wrong position

Refer to Setting the Direction

Control Switch.

BluVis function

display failure

Electrical Refer to a service center.

Wiring or electrical

connection faulty

Check the battery connection or
refer to a service center.

Difficulty removing

propeller

Bent propeller pin

Hold one blade and lightly tap
the opposite blade with a rubber
mallet.

Use a putty knife on both sides
of the propeller to apply equal
pressure.

Bent armature shaft Refer to a service center.

Service Assistance

Your satisfaction with your product is very important to us. If you have
a problem or question about your motor, contact your dealer or any
certified MotorGuide service center. For more service assistance
information, refer to Warranty Information.

The following information will be needed by the service office:

• Your name and address

• Daytime telephone number

• Model and serial number of your trolling motor

• Proof of purchase or registration verification

• Nature of problem

Mercury Marine Service Offices

For assistance, call, fax, or write. Please include your daytime
telephone number with mail and fax correspondence.

OWNER SERVICE ASSISTANCE

eng 49

United States

Telephone

English ‑ (920) 929‑5040

Mercury Marine
W6250 W. Pioneer Road
Fond du Lac, WI 54936-1939

Francais ‑ (905) 636‑4751

Fax

English ‑ (920) 929‑5893

Francais ‑ (905) 636‑1704

Website www.motorguide.com

Australia, Pacific

Telephone (61) (3) 9791‑5822 Mercury Marine Australia

132-140 Frankston Road
Dandenong, Victoria 3164
Australia

Fax (61) (3) 9706‑7228

Europe, Middle East, Africa

Telephone (32) (87) 32 • 32 • 11 Marine Power - Europe, Inc.

Parc Industriel de Petit-Rechain
B-4800 Verviers,
Belgium

Fax (32) (87) 31 • 19 • 65

Mexico, Central America, South America, Caribbean

Telephone (954) 744‑3500 Mercury Marine

11650 Interchange Circle North
Miramar, FL 33025
U.S.A.

Fax (954) 744‑3535

Brunswick Asia Pacific Group

Telephone [phone] T/A Mercury Marine Singapore Pte Ltd

29 Loyang Way
Singapore, 508944

Fax [phone]