W arnings, Cautions, Notes....................................................................................................................................... 9
T orque Specifications............................................................................................................................................. 14
Starting the Engine ................................................................................................................................................. 19
Running-In the New Motorcycle ............................................................................................................................ 22
Chapter 4 Design & Maintenance
Brief Description of Design & Maintenance .......................................................................................................... 23
Lubrication System ................................................................................................................................................ 23
Ignition System ...................................................................................................................................................... 25
Power Transmission............................................................................................................................................... 27
Fi na l Dr ive............................................................................................................................................................. 27
Adjustment of Sidecar Installation ........................................................................................................................ ..30
Front Fork ............................................................................................................................................................ 31
Steering Head Bearings.......................................................................................................................................... 31
Chapter 8 Wheel & Tires
Wheels and Tires ................................................................................................................................................... 33
Tire Data ................................................................................................................................................................34
Handle Bar and Controls ....................................................................................................................................... 37
Control Cable Adjustment...................................................................................................................................... 38
Control Cable Maintenance ................................................................................................................................... 39
Maintenance of Motorcycle ................................................................................................................................... 49
List of Recommended Lubricants ........................................................................................................................... 49
Care of Motorcycle Paint....................................................................................................................................... 52
Preservation and Storage ....................................................................................................................................... 53
T erms Used in this W arranty Section .................................................................................................................. 63
W arranty Responsibilities ..................................................................................................................................... 63
W arranty Disclaimers, Limitations & Exclusions .................................................................................................. 65
Distributors Limited W arranties - New Motorcycle............................................................................................. 66
W arranty Time Period .......................................................................................................................................... 67
Distributor’s Limited W arranties - Motorcycle T ires............................................................................................ 67
Distributor’s Limited W arranties Emission Control System.................................................................................. 69
Distributor’s Limited W arranties - Noise Control Systems.................................................................................. 70
Distributor’s Limited W arranties - Replacement Parts ......................................................................................... 71
Distributor’s Limited W arranties - Ural Accessories............................................................................................ 71
EP A Noise Regulations......................................................................................................................................... 72
Classic Motorcycles Emission Control System W aranty...................................................................................... 73
Classic Motorcycles Noise Control System W arranty........................................................................................ 75
Manufacturers W arranty Coverage ...................................................................................................................... 75
Chapter 15 Service Coupons
Service Coupons ................................................................................................................................................... 79
New Address Form ............................................................................................................................................... 89
New Owner Form ................................................................................................................................................. 91
URAL S tarting and Running Tips .................................................................................................... Inside Back Cover
5
6
INTRODUCTION
Welcome to the URAL Motorcycling Family! Y our new Ural motorcycle conforms to all applicable US
Federal Motor Vehicle Safety S tandards and US Environmental Protection Agency regulations effective
on the date of manufacture. This manual covers the Tourist, BC-75 LC-75 Adirondac, and Patrol.
This manual has been prepared to acquaint you with the operation, care and maintenance of your motorcycle, and to provide you with important safety information. Follow these instructions carefully for maximum motorcycle performance and for your personal motorcycling safety and pleasure. Please pay
particular attention to the section “Learning to Ride the Ural Motorcycle with Sidecar” and the separate
manual “Driving the Ural Sidecar Motorcycle.” It is critical that a beginning sidecar driver becomes
thoroughly familiar with the special operating characteristics of sidecar outfits before venturing out on the
roads.
Y our Owner’s Manual contains instructions for operation, maintenance and minor repairs. Major repairs
require the attention of a skilled mechanic and the use of special tools and equipment. Y our Authorized
Ural Dealer and Ural certified Service Center has the facilities, experience and genuine Ural parts neces-
sary to properly render this valuable service.
The Ural represents an important piece of German and Russian history since it has been continually
manufactured with the same general arrangement and outward appearance for the past 60 years after
Russian engineers initially copied the BMW’s of 1939. It truly is an “instant antique” as many of our
owners have said.
Since the Ural weighs 700 lb. empty with the attached sidecar , has a large frontal area and is powered by
an old fashioned 745cc engine, it is not a fast motorcycle. The Ural T ourist s’ top speed is 65 mph with a
cruising speedsof 55 mph but only after faithful adherence to the break-in period.
If you are a vintage enthusiast, collector , local commuter, hunter , fisherman, have children, grandchildren
or a dog that likes to ride, or you just like to be noticed on a rig that draws a crowd wherever you park,
welcome aboard!
The classic boxer twin has a German heritage. So effective, simple and powerful is this design that
Porsche, V olkswagen, and even Harley (during the war with the XA model) made this design their choice.
The reliability and torque of this elegant motor is due to its original design in 1912 by Max Friz, a brilliant
German aircraft-engine builder . He devised a compact and rugged engine that delivered significant
torque for its displacement, at low and constant rpms, without the gyro effects of other twins. The military
and civilian uses became legendary . The German motorbike builder BMW , began sing the design in their
motorcycles in 1922.
Because of its opposed cylinder layout the “Boxer” as it was dubbed, turns the crankshaft in line with the
motorcycle (or airplane!). This allows for a straight-through shaft connection from the engine, through the
7
gearbox and through a stainless steel driveshaft to a rear wheel final drive gear in the wheel hub. This
drivetrain design is exactly like the millions of rear wheel drive automobiles built over the past eighty
years! It is a time tested, proven drive system made elegantly simple by the “Boxer” opposed cylinder
engine.
T oday the “Boxer” engine has evolved into the high tech and electronically sophisticated and complicated
versions that can be found not only in BMWs but also in Porsches, Hondas and others. These are wondrous engines at wondrous prices! But they still retain the basic “soul” of Max Friz’s first engines. And
although it is not as evolved as the most modern “boxers”, the IMZ 750 cc is true to the earlier versions in
looks, but also has many modern internal components. These parts, like pistons, rings, valves, valve
seats and oil seals are modern and western made. The carburetors are made in Japan. These parts
make the engine more reliable and cleaner.
However , the “boxer” is still an air cooled power plant. As such it must be carefully monitored during
operation to prevent overheating. As the gear making and other machine tools in the Ural plant are
“vintage” ones, a careful break-in of the engine is very important. Neglecting to follow the prescribed
speeds during break-in or the frequent oil changes will cause this wonderful engine to rebel against its
“abusing” owner. However , by treating the “boxer” with respect and raising it well, you will be rewarded!
So its true that sometimes simple is better , and old fashioned ideas and designs have strong reasons for
the ability to continue for a long time. It is the main reason why over millions of Urals have been sold
around the world.
Any suggestions or comments are welcome! Write to us or post an e-mail on the Ural Discussion bulletin board at www.ural.com.
Happy Riding!
8
Important Notice!
St atements in this manual preceded by the following words are of special importance:
CAUTION:Means there is the possibility of damage to the vehicle.
NOTE:Other information of particular importance has been placed in
italic type.
CAUTION! During the initial 2,500 km, a fundamental bedding-in of parts for all the mecha-
nisms of the motorcycle takes place. During this period do not overload the engine or race the
motorcycle in excess of the speeds specified in the section “Running-In of New Motorcycle.”
Doing so will void the warranty.
Maintenance intervals recommended are based on operational experience under various climatic and
road conditions. However, these intervals may be extended or reduced following repeated checks of the
lubricant condition and general technical condition of the motorcycle.
Carefully study this Owner’s Manual before starting the motorcycle.
Specifications and design are subject to change without notice.
9
10
Chapter 1
SPECIFICATIONS
GENERAL
T ourist, Patrol BC-75 & LC-75
& Adirondac
Maximum speed of motorcycle120 km/h 74 mph120 km/h 74 mph
Reference fuel consumption at 85% of12.5 km/L 29 mpg 14 km/L 33 mpg
maximum speed
Dry mass of motorcycle700 lb680 lb.
Maximum load-carrying capacity500 lb. / 485 lb.400 lb.
Noise levelbelow 80db
OVERALL DIMENSIONS
Length2500 mm / 8 ft
Width1700 mm / 5 ft 6 in
Height1 100 mm / 3 ft 6 in
Road Clearance 125 mm / 5 in
Seat height 840 mm / 33 in
Wheel base1470 mm / 58 in
ENGINE
T ype4 stroke, overhead valves, opposed twin-cylinder
Displacement745 cc
Cylinder bore78 mm
Piston stroke78 mm
Compression ratio8.6 :1
Rated horsepower26 KW / 35 BHp
Rated rotational speed5600 RPM
Rated torque35 ft.-lbs @ 3750 RPM
Lubrication systemDual system of forced lubrication and splashing
LubricantSAE 20W/50
CARBURETOR
Carburetor type32 CVK Keihin
Number of carburetors2
Air cleanerPaper Filter Element
Fuel91 octane premium unleaded gasoline
PCV V alveInternal Breather
Clutch Dry double-disk clutch
Gearbox 4 speed gearbox with reverse gear lever
GEAR RA TIOS
I gear 3.6
II gear 2.28
III gear 1.5
IV gear 1.19
Reverse gear 4.2
Speedometer drive ratio 0.4
Final drive ratio 4.62
FLUID CAP ACITIES
T ourist, BC-75 Patrol
LC-75 Adirondac
Fuel tank5 Gal / 19L 5 Gal / 19L
Reserve.5 Gal / 2L.5 Gal / 2L
Engine68 oz / 2L68oz / 2L
Transmission34 oz / 1 L34oz / 1 L
Final drive3.5 oz / 105 ml4.5 oz / 135 ml
T elescopic Forks N/A on T ouristN/A on Patrol
(LC-75 & BC-75)135ml / 4.5 oz
Shock Absorbers105 ml / 3.5 oz105ml / 3.5 oz
mmin
V alves with engine cold0.05 to 0.10.002 to 0.004
Between spark plug electrodes1.0160.040
Backlash between tooth faces of
bevel gears in final drive0.1 - 0.30.004
FREE TRA VEL / ADJUSTMENTS
mmin
Hand brake control lever5 - 80.2 - 0.3
Clutch control lever5 - 80.2 - 0.3
Foot brake drive pedal¼ of full stroke of pedal,
25 - 301.0 - 1.2
T oe-in dist ance10 m m3/8 inch
Lean-out1° away from sidecar
13
TORQUE SPECIFICA TIONS
Metric US EquivalentLocation on Bike
54 to 61 Nm 40 ft/lb to 45 ft/lbcylinder heads
237 to 251 Nm175 ft/lb to 185 ft/lbfly wheel tightening screws
19 to 30 Nm top 14 ft/lb to 22 ft/lbshock absorber
38 to 49 Nm bottom 28 ft/lb to 36 ft/lbshock absorber
30 to 35 Nm 22 ft/lb to 26 ft/lbbearing nut
30 to 35 Nm 22 ft/lb to 26 ft/lbfinal drive to swing arm bolts
16 to 19 Nm 12 ft/lb to 14 ft/lboil pump bolt
6.7 to 11 Nm 5 ft/lb to 8 ft/lbengine sump
14 to 19 Nm 10 ft/lb to 14 ft/lbfinal drive case nuts
25 to 30 Nm 18 ft/lb to 22 ft/lbnut fastening the pinion bearing
(Patrol rear axle only)
68 to 90 Nm 50 ft/lb to 66 ft/lbnut fastening the pinion bearing
22 to 27 Nm 16 ft/lb to 20 ft/lbreverse gear brake lever
19 to 22 Nm 14 ft/lb to 16 ft/lbgenerator gear nut
136 to 163 Nm100 ft/lb to 120 ft/lbsteering stem nut
CONVERSIONS
T o convert from mm to in, divide by 25.4 (there are 25.4 mm per inch).
T o convert from liters to gallons, divide by 3.785 (there are 3.78 liters per gallon).
T o convert from liters to quarts, multiply by 1.056 (there are 1.056 quart s per liter).
T o convert from liters to pint s, multiply by 2.1 12 (there are 2.112 pints per liter).
T o convert from km to miles, multiply by .62 (there is .62 mile per km).
T o convert from km/hr to mph, multiply by .62.
T o convert from Newton-meter (Nm) to inch-pound, multiply by 8.86.
T o convert from Newton-meter (Nm) to foot-pound, multiply by .7376.
T o convert from cm3 (cc) to pints, divide by 473 (there are 473 cc per pint).
T o convert Celcius to Fahrenheit: F° = C° x 1.8 + 32.
T o convert Fahrenheit to Celcius, C° = (F° − 32) divide by 1.8.
Front brake control lever (Fig.1, #5). When the lever is squeezed, the front wheel brake is
actuated. The front brake should be used together with rear brake.
When the brake lever is squeezed, the stop signal lamps are switched on.
Kick lever (Fig.1, #1 1) is designed to start the engine. On pressing the lever the crankshaft of the
engine is actuated through the gearbox. The lever is returned to its initial position by the spring
inside the gearbox. Note: this is a backup to the electric starter .
Gear shift foot pedal (Fig.1, #12) is a two-arm type. When the front arm is pressed, shifting
from high to lower gears takes place. When the rear arm is pressed, shifting from low to higher
gears takes place. Since the heel-toe shift lever is short-coupled, you will find it easier to shift up if
you rotate the heel of your left foot in towards the rear arm before stepping on it with your heel.
The neutral position is fixed between the I and II gears.
IMPORT ANT! The green pilot lamp glows when the transmission is in neutral and when
the reverse gear is engaged (see “Starting the Engine”).
Reverse gear engagement lever (Fig.1, #10) Forward for neutral and/or forward running and
back for reverse.
The reverse gear may be engaged only after the motorcycle is completely
stopped!
T o engage reverse gear , shift into neutral (or first), then push back the reverse lever.
T o disengage the reverse gear , press lever up (forward) to the limit, then the gear shift mechanism
is reset to the neutral position. Now you can shift into first gear .
If desired, neutral may be selected by shifting into reverse when the first gear is engaged, and then
moving the reverse gear lever forward into neutral.
16
The rear brake pedal (Fig.1, #9) applies the rear wheel and sidecar wheel brakes simultaneously.
W ARNING: DONOTAPPLYEITHERBRAKESTRONGLYENOUGHTOLOCKTHEWHEELSBECAUSE THISMA Y
W ARNING: ANIMPROPERLYADJUSTEDREARBRAKEPEDALCOULDINTERFEREWITHPROPERREARBRAKE
OPERATION
RESULTINGINPOORBRAKEACTION.
Ignition Switch (Fig.1, # 19) has three fixed positions of the key . The position and switching
diagram of the ignition locks are shown above.
Tourist, Patrol BC-75
Adirondac & LC-75
OffAll electrical systems are off.
R unVolt age is supplied to all electrical systems.
ParkingVoltage is supplied to running lights only .
UnusedAll electrical systems are off.
Note: Leaving the key in the Run or Parking position will discharge the battery .
Always return the key to the Off position before taking it out.
Speedometer is on the dash board, with trip (Note..BC-75 has no trip odometer)
and total odometer . The trip odometer is reset to zero by rotating push-button (Fig.1, # 3) counterclockwise. Note that the odometer reads in kilometers not miles.
17
The indicator lamps are mounted on the instrument board:
(Fig. 1, # 2) — turn indicator pilot lamp, (orange)
Note: If the red alternator fault light stays on continuously during normal operation above approximately 1500 RPM, there is a problem with the charging system or battery .
Throttle Control (Fig.1, # 6) is on the right handlebar . Turning the twist grip counterclockwise
increases engine speed.
Ignition Cutoff Switch (Fig.1, # 7) has two positions, ignition off (up), and ignition on (down).
Low and High Beam Light Switch (Fig.1, # 15), turn indicator switch (Fig.1, #13) and horn
push-button (Fig.1, # 14) are combined in one unit on the left-hand handle bar control housing.
Master Battery Switch (Fig.1, # 21) is under the seat.
Electric Start Button (Fig. 1, # 8) is located on the right-hand twist grip, below the kill switch.
The Steering Damper absorbs lateral kicks on the front wheel. T urning tightening bolt (Fig.1, # 17)
clockwise increases friction. This can be used while riding over bad roads.
W ARNING: DONOTTIGHTENTHEDAMPERTOTHEPOINTWHERETHESTEERINGBECOMESSTIFF. DOINGSO
ADVERSELYAFFECTHANDLINGQUALITIES.
WILL
Parking brake (Fig. 1, # 22) is located on the right side of the motorcycle next to the foot peg. It is
engaged by applying the foot brake pedal fully and turning the handle and pushing it down to hold
the foot brake lever in the applied position.
Always disengage the parking brake before moving the motorcycle.
18
Chapter 3
ENGINE OPERATION AND MAINTENANCE
PRE-TRIP PRELIMINARIES
Before each trip, attend to all the requirements of the everyday maintenance as outlined in this
manual. When adding fuel and oil to the motorcycle, take all precautions to keep everything neat
and clean.
Gasoline level in the tank fully filled should be 10 - 15 mm / ½ - ¾ in. below the lower edge of the
tank filler . Do not overfill the tank, especially on California models where overfilling can cause fuel
contamination of the charcoal cannister . See that the
than the top and not lower than the bottom marks on the dipstick with the filler plug undone.(See
chapter 4 Lubrication System)
CAUTION: When draining and refilling oil , be careful that dirt and debris does not contaminate the fresh oil. Do not allow draining oil to get on the rear wheel, tire, or brake compo-
nents.
oil level in the engine crankcase is not higher
ST ARTING THE ENGINE
W ARNING: BEFORESTARTINGTHEENGINE, MAKESURETHATTHEGEARSHIFTMECHANISMISINTHENEU-
TRALPOSITION (BETWEEN 1
POSSIBLE
ADVISABLETOUSENEUTRALGEAR.)
IS
When the ignition is switched on, the green & red lamps on the instrument board should light up.
Make sure that the reverse gear engagement (lever) is set to the front position. This is important
since the green lamp will also be lit if the motorcycle is in reverse gear . Moving the reverse gear
lever forward will put the gearbox in neutral.
Gasoline petcock positions are as follows:
OFF ON RESERVE
DAMAGETOMOTORCYCLEANDPERSONALINJURY. ( FORMORETHANJUSTSTARTING, I.E. IDLING, IT
ST
AND 2ND GEARS) TOPREVENTACCIDENTALMOVEMENTWHICHCOULDCAUSE
19
Depending on the engine and ambient temperature, use the carburetor enricheners and starting
procedure as follows:
Manual S tarting (without electric starter)
1. T urn on the ignition and depress the kick lever (see Fig. 1) about
1/4 of its travel (enough to firmly get the ball of your foot on the lever) with either your left
foot or right foot, depending on what position is most comfortable with your right hand on the
throttle. T ake up the slack in the throttle until you can feel some slight resist ance from the
return springs in the carburetors. However , do not advance the throttle, since this may flood
the engine.
Note: Y ou may find it more comfortable to stand on the lef t passenger foot peg with your right
foot and kick with your left foot.
Give the kick lever a swift kick. When the engine starts, tickle the throttle (quickly increase
and decrease it) to keep the engine running, but not too fast. If the engine doesn’t start,
repeat the kicking procedure. A properly adjusted warm engine should start within a few
kicks. If the engine doesn’t start, try the procedure described below in item 3. If it still
doesn’t start or fire, it may be flooded.
Note: Do not open the throttle while kicking the engine over since it may flood the spark plugs.
Electric St arting
1. Set carburetor enricheners as with kick starting. Unlike manual starting, however , the
gearbox does not have to be in neutral as the electric starter may be engaged with the clutch
lever pulled in, or with the gearbox in neutral. Make sure the Ignition Cutoff Switch is set to
“ Ignition On” and push the starter button to turn over the engine.
2. When the engine has been standing for several hours but the ambient temperature is
high (60°F/15°C degrees or above), try starting it without any enricheners. If it doesn’t fire,
then use the procedure described below.
3. When the engine is cool or cold and the ambient temperature is between40°F-60°F/5°C-
15°C, depress both enricheners to start. As soon as the engine starts, immediately retract
the enricheners. Run the engine at moderate speed for 30-60 seconds. If it starts to die,
blip the twist grip throttle (rapidly twist part way towards full throttle and then back off) to
keep the engine running. After 1 to 3 minutes, depending on ambient temperature, the
engine should run smoothly without “blipping” the throttle.
4. If the engine is cold and ambient temperature is below 40°F , first, give the engine 5-10
(depending on how cold it is) priming kicks with the ignition off. This will get some oil circulated to key internal parts. Engage the enricheners on both carburetors. The engine should
20
then fire, depending on how cold it is. For example, when the ambient temperature is 0°F, it
typically takes about 5-10 rotations to start the engine. As soon as the engine starts, retract
both enricheners (after a few seconds).
Note: It is very important to back off on the enricheners as soon as the engine will sustain itself
without stalling. Since the Ural is a classic engine design, the plugs will foul quickly (as soon as
one minute) if the engine mixture is too rich. If one plug fouls and the other doesn’t, the engine
will run very unevenly and have greatly reduced power.
When the engine is hot, do not choke or enrichen the carburetors. T o do so risks flooding
the engine.
T o st art an engine that is flooded, first open the throttle fully, hold it there and give the engine
up to 10 swift kicks. If it still doesn’t fire, take the spark plugs out to see if they are wet with
gasoline. If they are wet, dry them. Clear excess gasoline from the cylinders by kicking the
engine over 10 times with the plugs out and the throttle closed. Then replace the plugs and
repeat the starting procedure described at the beginning of this section (1).
W ARNING: SUSTAINEDOPERATIONONONLYONECYLINDERFOREVENJUSTAFEWMINUTESCOULDOVER-
Additional Warnings: Once the engine start s, do not allow it to run at a high speed as this could
cause abnormal wear of the parts and may lead to seizure of the piston pin and pistons in the
cylinders since cold oil flows through the oil ducts with difficulty and fails to ensure sufficient lubrication.
A correctly adjusted warm engine should run steadily at low speed with the throttle control twist grip
fully closed.
Do not let the motorcycle sit at idle for more than three minutes, as overheating could result.
OPERATING PRECAUTIONS
W ARNING: MAKESURETHATSIDECARWINDSHIELDISINTHEFULLBACKPOSITIONSOITDOESN’TINTER-
FEREWITHTHERIGHTHANDLEBAR.
T o move the motorcycle from rest, shift to 1st gear only . A void releasing the clutch suddenly , because the engine is liable to stall or the motorcycle will start with a jerk. Do not drive the motorcycle at speeds below the recommended speeds with the 2nd, 3rd or 4th gears engaged. It is not
advisable to use the 1st and 2nd gears for a long time, unless so required by road conditions.
W ARNING: WHENSHIFTINGTOLOWERGEARSWITHTHEMOTORCYCLEINMOTION, DONOTDOWNSHIFTAT
CAUTION: Do not run the engine at extremely high rpms with clutch disengaged or transmission in neutral. Do not idle the engine unnecessarily for more than a few minutes with
the motorcycle standing still.
An engine which has run long distances at high speed must be given closer than ordinary attention
to avoid overheating and consequent damage. Have the engine checked regularly and keep it well
tuned. V alve seating and good compression are particularly important. This applies particularly to
a sidecar motorcycle equipped with windshields, carrying heavy loads, or operating in hot weather .
W ARNING: WHENRIDINGONWETROADSORUNDERRAINYCONDITIONS, BRAKINGEFFICIENCYISGREATLY
When descending a long, steep grade, downshift and use engine compression together with intermittent application of both brakes to slow the motorcycle. Avoid continuous use of brakes to reduce overheating of the brakes and reduced efficiency .
While using the motorcycle in summer, p ay special attention to the condition of the tires. Keep
them inflated up to pressures specified in this manual.
RUNNING IN THE NEW MOTORCYCLE
The running-in period for the motorcycle is the first 2,500 km.
Since the Ural engine is a classic design, it is critical to observe this running-in procedure. Failure
to do so could cause engine damage and void the warranty .
During the running-in period, a new motorcycle requires the most careful attention. In the course
of this period, do not overload the machine. A void traveling on freeways and climbing steep hills.
Do not race the engine or overheat it at any time. V ary the throttle setting frequently , so as to avoid
constant RPMs. Allow the new engine frequent rest periods for cooling down.
22
Chapter 4
BRIEF DESCRIPTION OF DESIGN & MAINTENANCE
ENGINE
The motorcycle is equipped with a twin-cylinder four-stroke carburetor-type air-cooled engine.
Opposed arrangement of cylinders in the horizontal plane is the outstanding feature of the motorcycle design which ensures proper cooling and balancing of the crank gear . The engine valves
are located in the cylinder heads.
In summer, carefully observe the heating condition of the engine, power transmission unit s and the
running gear mechanisms. Under normal heating conditions of the engine, the temperature of the
cylinder heads should not be over 356°F-428°F/180°C-220°C.
Engine maintenance. During everyday preventive maintenance, clean the engine of mud and
dust, paying special attention to the cooling fins as their fouling will impair the efficiency of the
engine cooling. Check engine crankcase, cylinders and cylinder heads for leaks of oil and fuel.
Completely follow all maintenance intervals specified in the Service Coupons.
LUBRICATION SYSTEM
The motorcycle engine features a dual lubrication system, some parts are force-lubricated by
pressure built up by the oil pump, while others by splashing . A full-flow paper oil filter is provided
in the lubrication system to prolong the engine life.
Maintenance of lubrication system. During the daily inspection, check the oil level in the engine
crankcase and top off the oil if necessary .
The oil dipstick has two grooves showing the lower and the upper oil level limits. In checking the oil
level, wipe the dipstick and insert it into the crankcase without screwing in the dipstick.
The dipstick is positioned
for correct oil level
measurement.
23
Warm up the engine before changing the oil. Drain used oil from the engine and the oil filter cavity
after having unscrewed the drain plug and filter plug. Change oil filter at the intervals shown in the
service coupons. Set the rubber sealing bushing into the filter and fit the filter with the bushing
onto the adapter of plug, then screw the latter into the front cover . Now screw in the plug. Fill the
engine with 68 oz. oil, or until the top mark of the dipstick is reached.
Let the engine run for 3 - 5 min. Check the oil level again adding oil up to the top groove of the
dipstick if needed. During motorcycle service, keep oil level in the engine crankcase close to the
top groove of the oil dipstick. Don’t ride the motorcycle if the oil level is below the lower mark of the
dipstick, until sufficient oil is added to raise the oil level to the top mark.
Make sure that the dipstick is screwed down securely after measuring the oil level.
FUEL SYSTEM
The fuel system includes the gasoline tank, the three-way fuel valve with filter and two carburetors.
Fuel valve (petcock). The top threaded portion of the valve is screwed into the gasoline tank.
The lever has three positions: (See Pg. 16)
Down - Reserve
Horizontal - Off
Up - On
W ARNING: FUELVALVESHOULDALWAYSBECLOSEDWHENENGINEISNOTRUNNINGTOENSUREAGAINST
ACCIDENTALLY
FLOODINGENGINEORSURROUNDINGSWITHGASOLINE.
Note: T o maintain a reserve supply , operate the motorcycle with the valve in the on position
after refueling.
W ARNING: FILLFUELTANKSLOWLYTOPREVENTFUELSPILLAGE. DONOTOVERFILLABOVETHEBOTTOMOF
Fuel system maintenance. Before a trip, check the tightness of gasoline piping joints, & proper
functioning of throttle cables.
Check fastening and condition of the carburetor flanges. Run the engine and check for proper idle
adjustment of the carburetors.
24
IGNITION SYSTEM
The ignition system incorporates the power supplies, ignition coil, Hall Effect pickup, electronic
module, two spark plugs, a set of low and high voltage wires and the ignition switch.
For the electric circuit diagram of the motorcycle with electronic ignition system refer to Ignition
System schematic diagram.
Ignition coil The ignition coil has two high voltage terminals, each supplying one of the cylinder
spark plugs and operating in conjunction with the Hall Effect pickup.
Periodically , check all wires to be sure they aren’t crimped or have loose connections.
Spark plugs. In certain situations, spark plugs can quickly foul with carbon or soot. The plugs can
be cleaned but it is easier to put in a new set of plugs when on the road. We recommend that you
purchase an extra set of these plugs from your Authorized Ural Dealer and carry them in the motorcycle at all times.
W ARNING: D
DAMAGE
Functioning of ignition system. Both plugs fire simultaneously on the left and right-hand cylinders, one spark being formed when the compression stroke terminates in one of the cylinders and
the other during the exhaust stroke.
32mm CVK Keihin Seike carburetors are used on of the Ural motorcycle for compliance with US
EP A requirement s. They are preset with fixed mixture jetting and adjust automatically for altitude
variations. This is due to the vacuum activation mechanism of these constant velocity type carburetors.
W ARNING: TOAVOIDSEVEREENGINEDAMAGE, DONOTMODIFYCARBURETORSYNCHRONIZATION, JETS, OR
THROTTLE
FEDERAL OFFENSEANDMAYSUBJECTTHEOFFENDERTOCIVILPUNISHMENTANDFINES. THISAIRCOOLED
Use the enricheners only if needed to start a cold engine. T urn the enricheners off as soon as the
engine has started to prevent the possible fouling of the spark plugs.
26
Chapter 6
POWER TRANSMISSION
The power transmission of the motorcycle is comprised of the clutch, gearbox, drive shaft and the
final drive.
CLUTCH
The clutch transmits torque from the engine to the gearbox. Disengage the engine from the gearbox during shifting of the gears and during braking to a stop. The clutch provides for smooth
starting of the motorcycle from rest, protects the power transmission parts against damage when
the engine speed or drive wheel speed is suddenly changed. The clutch is of dry double-disk
design. The clutch release mechanism is controlled by the lever on the left grip of the handle bar .
With the clutch lever released, the engine is engaged to the gearbox. When the clutch lever is
squeezed, the engine is disengaged from the gearbox. Use the clutch lever for starting fromrest and for gear shifting. Under conditions of heavy traffic, when gears frequently have to be
shifted, do not slip the clutch too much, as this will accelerate wear of the disks.
GEARBOX
The reverse gear should be engaged from neutral or first gear when the bike has come to a stop.
Shifting the gears is best accomplished by pushing down on the toe piece for first gear and to
downshift from higher gears. To shift up into second, third and fourth gear , use the heel plate (with
either heel or toe) and push down quickly and firmly .
CAUTION: Severe damage due to insufficient lubrication of gears, shafts and bearings can
result if the oil level is allowed to get lower than the specified level.
FINAL DRIVE
Maintenance of propeller shaft splines and final drive.
Remove the final drive from the swing arm and pull the final drive towards the rear of the bike.
When the drive shaft is free, coat the drive shaft splines with grease. At the same time, use a
grease gun to force grease into the drive shaft universal joint.
T ypical final drive maintenance includes tightening the nuts which fasten the final drive to the
swinging fork arm. Failure to tighten the nuts may result in loose joints and the destruction of the
final drive cover . Change the final drive oil as determined by the service coupons. Undo the filler
and drain plugs and drain the used oil. Fill the casing with fresh 20w / 50 Castrol oil and flush the
final drive by turning the rear wheel several times. Drain the 20w / 50 Castrol oil and then refill the
final drive with the specified lubricant. ( See lubrication list, chapter 1 1 )
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