LEHR 9.9 HP 4-STROKE User Manual
LEHR | ALL RIGHTS RESERVED 2010-2011
TABLE OF CONTENTS
FOR SERVICE
Call 1-866-941-LEHR (5347)
MODELS:
OPERATOR’S MANUAL
PROPANE POWERED
OUTBOARD MARINE ENGINE
CAUTION: BEFORE OPERATING THIS PRODUCT,
READ AND FOLLOW ALL SAFETY RULES AND
OPERATING INSTRUCTIONS.
LEHR | ALL RIGHTS RESERVED 2013-2014
THIS PRODUCT CONTAINS CHEMICALS
KNOWN TO THE STATE OF CALIFORNIA
TO CAUSE CANCER, BIRTH DEFECTS OR
OTHER REPRODUCTIVE HARM.
WARNING:
Important Manual Information....................................................1
General Information.........................................................................2
Installation............................................................................................7
Operation..............................................................................................8
Maintenance......................................................................................13
Troubleshooting...............................................................................21
Warranty..............................................................................................25
9.9 HP
LP9.9 S
LP9.9 L
LP9.9 ES
LP9.9 EL
LP9.9 ERS
LP9.9 ERL
WARNING:
PROPANE IS HIGHLY FLAMMABLE, AND ITS
VAPORS CAN EXPLODE IF IGNITED.
SAFETY WARNINGS FOR PROPANE UNITS
CARBON MONOXIDE HAZARD
Burning propane makes Carbon Monoxide (CO). CO is
invisible, has no smell and can kill you. Operating your
outboard engine in an enclosed area can be dangerous.
1. Use only in well ventilated areas. If you experience
headache, drowsiness, or nausea, turn unit o and
get fresh air quickly.
2. Never use where people are sleeping.
3. Follow unit instructions for proper use.
HANDLING & STORAGE OF PROPANE TANKS
1. Keep out of reach of children.
2. Never expose to heat, sparks, or flame.
3. Never store in direct sunlight.
4. Never store at temperatures above 120 degrees F
°
(49° C).
5. Never store in living spaces.
6. Always use tank until it is completely empty.
7. Never store in luggage or take on trains or aircraft.
8. To discard, contact local refuse hauler or recycle center.
9. Never put in fire or incinerator. Do not puncture.
NOTE: FIRE/EXPLOSION HAZARD
Propane tanks contain enough gas to cause serious fire,
explosion, and burns. To reduce chance of leak, fire, or
explosion, take the following precautions:
BEFORE USE
1. Check tank and hose seals. Never use with
damaged or missing seals. Clean tank if dirt or rust
particles are in valve area.
2. Attach tanks outdoors away from pilot lights, flames,
sparks or other ignition sources. These sources can
ignite leaking gas.
4. Hand tighten only. Never use tools to tighten.
Over tightening can damage seals.
5. Check for leaks. Put soapy water on connections.
Look for bubbles. Listen for hiss of escaping gas. Feel
for extreme cold. Smell for rotten egg odor. Do not
use if leaking.
6. Read and follow operation instructions.
DURING USE
Never use near pilot lights, flames, sparks, or other
ignition sources. They can ignite leaking gas.
AFTER USE
1. Turn engine o and let cool.
2. Detach tank when not in use.
3. Detach outdoors away from pilot lights, flames, sparks,
or other ignition sources, they can ignite leaking gas.
4. Replace valve and connector caps to keep them clean.
IN CASE OF FIRE
1. Leave area quickly and call for help.
2. Let the tank burn out.
UNDERSTANDING PROPANE
NOTE: Use propane only in tanks specifically designed
and approved for this unit. Propane is a combustible
gas, it is colorless and thus invisible to the naked eye.
Propane has a harmless odorant added so that it is
possible to smell it. The user should be familiar with the
smell of propane (smells like sulfur or rotten eggs). If at
any time the smell of propane is identified, turn o the
engine. If the leak persists, remove the propane tank.
Never attempt to operate a unit that has a suspected
leak. Always remove the propane tank from any unit
that has a suspected leak.
LEHR |
ALL RIGHTS RESERVED 2013-2014
1
TO THE OWNER
Congratulations for purchasing a LEHR propane outboard motor. Thank you for taking the initiative to reduce
pollution in our water, air and environment, by changing to an environmentally friendly fuel source for your
outboard motor. This operator’s manual explains information needed for proper operation, maintenance, and
care of your LEHR propane outboard engine. Understanding and following these instructions will help you
get the most trouble free use from your LEHR propane outboard. If you have any questions about operation
or maintenance of your outboard motor please contact LEHR at1-866-941-LEHR (5347).
READ THE OPERATOR’S MANUAL BEFORE OPERATING YOUR LEHR PROPANE OUTBOARD MOTOR
• Read this manual completely and understand the operating procedures before operating the outboard
motor.
• Read all manuals supplied with your boat.
• Read all labels on the outboard motor and the boat.
• If you need any additional information, contact your LEHR dealer or call 1-866-941-LEHR (5347).
WARNING SYMBOLS
Warning symbols indicates: ATTENTION! YOUR SAFETY IS INVOLVED! Failure to follow WARNING
instructions could result in severe injury or death to the machine operator, a bystander, or a person
inspecting or repairing the outboard motor.
NOTE
A “NOTE” provides information to make procedures easier or clearer. To ensure long product life, LEHR
recommends that you use the product and perform the specified periodic inspections and maintenance by
correctly following the instructions in the operator’s manual. Note that if you do not follow these instructions,
not only may the product malfunction, but the warranty will also be voided.
This product is covered under one or more of the following U.S. Patents:
7424886 B1, 7631636 B2, 7730868 B2, 7690347 B2, 7739996 B2, 7874275 B1, 7854219 B2, 7735464 B2.
Other Patents Pending.
IMPORTANT MANUAL INFORMATION
WARNING
LEHR | ALL RIGHTS RESERVED 2013-2014
2
GENERAL INFORMATION
• efore mounting or operating the outboard motor, completely read the operators manual and labels.
Reading them will gie you a good understanding of the motor and its operation.
• efore operating the boat, read any owners or operators manuals supplied with it and all labels. e sure
you understand all items from the boat manual as well as this engine manual before operating.
• o not oer power the boat with this outboard motor. erpowering the boat could result in damage to
the boat and inury to all occupants. he rated power of the outboard should be eual to or less than the
rated horsepower capacity of the boat. If the rated horsepower capacity of the boat is unnown, consult
the dealer or boat manufacturer.
• o not attempt to modify the outboard. odifications could mae the motor unsafe to use and will oid the
warranty. Incorrect propeller selection and incorrect use may not only cause engine damage, but also
adersely affect fuel consumption. onsult your dealer for correct use.
• eer operate after drining alcohol or taing drugs. bout 5 of all boating fatalities inole intoication.
• Hae an approed personal flotation deice () on board for eery occupant. It is a good idea to wear a
wheneer boating. hildren and non-swimmers should always wear s, and eery one should wear
s when there are potentially haardous boating conditions.
• ropane is highly flammable, and its apors are flammable and eplosie. Handle and store propane
carefully. ae sure there are no fumes or leaing fuel before starting the engine.
• his product emits ehaust gases which contain carbon monoide, a colorless, odorless gas which may
cause brain damage or death when inhaled. ymptoms include nausea, diiness, and drowsiness. eep
cocpit and cabin areas well entilated. oid blocing ehaust outlets.
• hec throttle, shift, and steering for proper operation before starting the engine.
• ttach the engine stop switch lanyard cord to a secure place on your clothing, or your arm or leg while
operating. If you accidentally leae the helm, the cord will pull from the switch, stopping the engine.
• now the marine laws and regulations where you will be boating and obey them.
• now about the weather forecast. hec weather before boating. oid boating in haardous
weather.
• ell some one where you are going. Leae a loat lan with a responsible person. e sure to cancel the
loat lan when you return.
• e aware, alert, and use good udgment when boating. now your abilities, and be familiar with how your
boat handles under the different boating conditions you may encounter. perate within your limits,
and the limits of your boat. lways operate at safe speeds, and watch carefully for obstacles and other
traffic.
• lways watch carefully for swimmers.
• tay away from swimming areas.
• hen a swimmer is in the water near you shift into neutral and shut off the engine.
• o not illegally discard empty containers used to replace or replenish oil. or the correct processing of
empty containers ,consult the dealer where you purchased the oil.
• hen replacing oils used to lubricate the product (engine or gear oil), be sure to wipe away any spilled oil.
eer pour oil without using a funnel or similar deice. If necessary, erify the necessary replacement
procedure with the dealer.
• eer illegally discard (dump) propane tans. onsult your local city recycling center on discarding empty
propane tans.
MODEL YEAR
EX: 12 = 2012
SEQUENCE PER MONTH MONTH
EX: A = JANUARY
B = FEBRUARY
C = MARCH
SERIAL NUMBER
EMISSIONS LABEL
WARNING LABELS:
-DETACH FUEL LINE
WHEN NOT IN USE
-USE ONLY PROPANE
MOTOR FUEL
-FIRE HAZARD
5
4
3
2
1
6
18
9
17
10
13
8
14
15
16
19
20
12
11
7
BASIC COMPONENTS
NOTE: All components may not be exactly as shown, also may not be included as sta ndard equipment on
all models.
The outboard motor serial number is stamped on the label attached to the
clamp bracket. Record your outboard motor serial number, you will need it
when ordering spare parts from your LEHR dealer or for reference if your
outboard motor is stolen.
LP9.9S12A1234
11. COOLANT WATER PILOT HOLE
12. TILT LOCK LEVER
13. PULL START HANDLE
14. GEAR SHIFT LEVER
15. TILLER HANDLE
16. ENGINE STOP BUTTON
17. LOW OIL PRESSURE WARNING LIGHT
18. PROPANE CONNECTOR
19. ENGINE RESTRAINT CABLE MOUNT
20. TRANSOM CLAMP HANDLE
1. TOP COWLING
2. SWIVEL BRACKET
3. CLAMP BRACKET
4. TRIM ROD
5. COOLANT WATER INTAKE
6. TOP COWLING LOCK LEVER
7. LOWER COWLING
8. OIL OUTLET
9. LOWER UNIT HOUSING
10. PROPELLER
LEHR | ALL RIGHTS RESERVED 2013-2014
3
GENERAL INFORMATION
LEHR | ALL RIGHTS RESERVED 2013-2014
4
GENERAL INFORMATION
PROPANE TANK
Use of a LEHR Liquid Draw propane tank is recommended. A DOT approved propane tank may be used,
however extended use at high RPM may result slowed engine performance. Connect the tank to the remote
propane connector with the provided high pressure propane hose.
NOTE: Do not use a hose assembly that includes a pressure regulator.
TILLER HANDLE
To change direction wile operating your boat, move the tiller handle to the left or right as necessary.
GEAR SHIFT LEVER
Your outboard has three gear shift positions to provide operation: Forward(F), Neutral(N), and Reverse(R).
Reduce throttle speed to idle speed before shifting. Always shift outboard into gear with a quick motion.
THROTTLE GRIP
The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to
decrease speed.
THROTTLE FRICTION ADJUSTER
A friction device provides adjustable resistance to movement of the throttle grip or the remote control lever,
and can be set according to operator preference. To increase resistance, turn the adjuster clockwise. To
decrease resistance, turn the adjuster counterclockwise.
STANDARD 20 lb. PROPANE TANK
TILLER HANDLE
(F)
(R)
(N)
GEAR SHIFT LEVER
THROTTLE GRIP
THROTTLE FRICTION
ADJUSTER
HIGH PRESSURE PROPANE HOSELEHR LIQUID DRAW PROPANE TANK
LEHR | ALL RIGHTS RESERVED 2013-2014
5
GENERAL INFORMATION
WARNING: Do not overtighten the throttle friction adjuster. If there is too much resistance, it could be
difficult to move throttle lever or grip, which could result in an accident. When constant speed
is desired, tighten the adjuster just enough to maintain the desired throttle setting.
ENGINE STOP SWITCH
The stop switch lock must be attached to the engine stop switch for the engine to run. The hook should be
attached to a secure place on the operators clothing, or arm or leg. Should the operator fall over board or
leave the helm, the hook will pull out the stop switch lock, stopping ignition to the engine. This will prevent
the boat from running away under power.
WARNING: Attach the engine stop switch hook to a secure place on your clothing, or your arm or leg
while operating. Do not attach the hook to clothing that could tear loose. Do not route the
lanyard where it could be come entangled, preventing it from functioning. Avoid accidentally
pulling the lanyard during normal operation. Loss of engine power means the loss of most
steering control. Also, without engine power, the boat could slow rapidly. This could cause
people and objects in the boat to be thrown forward.
NOTE: The engine cannot be started with the stop switch lock removed.
ENGINE STOP BUTTON
To stop the engine, push and hold the engine stop switch button or pull the lanyard out from the switch.
MANUAL STARTER HANDLE
To start the engine, first gently pull the handle out until resistance is felt. From that position, then pull the
handle straight out quickly to crank the engine.
NOTE: If the shift lever is not in the neutral
position the starter rope will be locked
and cannot be pulled
STEERING FRICTION ADJUSTER
A friction device provides adjustable resistance to the steering mechanism, and can be set according to
operator preference. An adjusting screw or bolt is located on the swivel bracket.
To increase resistance, turn the adjuster bolt clockwise. To decrease resistance, turn the adjuster bolt
counterclockwise.
WARNING
:
Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to
steer, which could result in an accident.
ENGINE STOP
BUTTON
ENGINE STOP SWITCH
STOP SWITCH LOCK
HOOK
ENGINE STOP
SWITCH LANYARD
HANDLE
STEERING FRICTION ADJUSTER BOLT
LEHR | ALL RIGHTS RESERVED 2013-2014
6
GENERAL INFORMATION
TRIM ROD
The position of the trim rod determines the angle of the outboard motor in relation to the transom
.
TILT LOCK MECHANISM
The tilt support lock keeps the outboard motor in the tilted up position. If the outboard engine needs to be
tilted up out of the water or to get the propeller higher than the bottom of the boat, unlock the tilt lock
mechanism as shown and tilt the engine upwards. Once the engine is all the way up, the tilt lock mechanism
will engage and lock the engine in the up position. To release the lock to lower the engine pull up on the rear
carrying handle to lift the engine up as far as it will go. While the engine is all the way up, turn the lock lever
to the lock position to disengage it while lowering the engine.
WARNING: Do not use the tilt support bar when trailering the boat. The outboard motor could shake loose
from the tilt support and fall. If the motor cannot be trailered in the normal running position, use
an additional support device to secure it in the tilt position.
TOP COVER LOCK LEVER
Pull the lock lever upwards from the bottom and unhook from the top cover. Then lift the cover from the rear
and remove from the front hook. When installing the cover, make sure the front hook is securely inserted in
it’s slot, then lock the rear lever into place. Check to be sure the rubber seal fits properly on the lower cowling.
Then lock the cover by moving the lever downward.
CARRYING HANDLES
Carrying handles are provided on the front and rear of the outboard motor. The handles enable you to carry
the outboard motor easily with two hands.
CARRYING
HANDLE
CARRYING
HANDLE
FRONT
REAR
LOWER COWLING
RUBBER SEAL
TRIM ROD
TRANSOM CLAMP
TRIM ROD
UNLOCK
TILT LOCK LEVER
TILT UP AND LOCK
TILT LOCK LEVER
LOCK
LOCK
LEVER
FRONT HOOK
LOCK
LEVER
LOWER COWLING
TOP COVER
LEHR | ALL RIGHTS RESERVED 2013-2014
7
INSTALLATION
INSTALLATION
Incorrect engine height or obstructions to smooth water flow in front of the propeller can cause propeller
cavita tion while the boat is cruising. Cavitat ion occurs when the engine speeds up momentarily and suddenly
slows as the propeller engages the water. Severe engine damage may result if the motor is operated
continuously while cavit ating. During water testing check the buoyancy of the boat, at rest, with its maximum
load. Check that the static water level on the exhaust housing is low enough to prevent water entry in to the
power head, when water rises due to waves when the outboard is not running.
MOUNTING THE OUTBOARD MOTOR
• Overpowering a boat could cause severe instability. Do not i nstall an outboard motor with more horsepower
than the maximum rating on the capacit y plate of the boat. If the boat does not have a capacity plate,
consult the boat manufacturer.
• This section is int ended as reference only
. It is not possib le to provide complete instructions for every
possible boat and motor combinat ion. Proper mounting depends in part on experience and the specific boat
and motor combination. Improper mount ing of the outboard motor could result in hazardous conditions, or
poor handling, loss of control, or boat damage.
• Your dealer or ot her person experienced in proper out board m otor mountings should show you how to
mount your motor. Mount the outboard mot or on the center line (keel line) of the boat, and ensure that the
boat itself is well balanced. Otherwise the boat will be hard to steer. For boats without a keel or which are
asymmetrical, consult your dealer.
MOUNTING HEIGHT
To run your boat a t best efficiency, the water resistance (drag ) of the boat and outboard motor must be
made as little as possible. The mount ing height of the outboard motor greatly affects the water resistance.
If the
mounting height is too high, cavitat ion tends to occur, thus reducing the propulsion, and if the propeller
tips cut the air, the engine speed will rise abnormally and cause the engine to over heat. If the mounting
height is too low, the water resistance will increase and thereby reduce engine efficiency. Mount th e
outboard motor so that the ant i-cavitation plate is between the bottom of the boat and a level 25mm (1in.)
below it.
The optimum mounting height of the outboard motor is affected by the boat and motor combination and the
desired use. Test runs at different heights can help determine the opt imum mounting height. Consult your
boat manufacturer for further informat ion on determining the proper mounting height.
CLAMPING THE OUTBOARD MOTOR
1. Place the outboard motor on the transom so that it is positioned as close to the center as possible. Tighten
the transom clamp screws evenly and securely. Occasionall y check the clamp screws for tightness
during
operation of the outboard motor because they could become loose due to engine vibration.
WARNING: Loose clamp screws could allow the outboard motor to f all off or move on the transom. This could
cause loss of cont rol and serious injury. Make sure the transom screws are tight ened securely.
Occasionally check the screws for tightness during operation.
2. If an engine restraint cable or chain attac hment is equipped on your boat, the cable or chain should be
used. Attach one end of the engine restraint cable attachment to the engine clamp and the other to a
secure mounting point on the boat. Otherwise the engine could be completely lost i f it accidentally falls
off the transom.
CENTER LINE
(KEEL LINE)
aa
ANTI-CAVITATION PLATE
ATTACH ONE END OF THE RESTRAINT
CABLE THROUGH THIS CLAMP MOUNT
AND ONE END SECURELY ON THE BOAT
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