E-TON Viper 150 Specifications

READ THIS MANUAL CAREFULLY!It contains important safety information.The ATV should not be ridden by anyone under 16 years of age.WARNINGVIPER 150VIPER

1-21that is proper for the terrain, visibility, operatingconditions, and your experience.Never attempt wheelies, jumps, or other stunts.Always inspect

8-298Drive chain slackThe drive chain will stretch with use and will requireperiodic adjustments. To check the chain tension, remove the chain guard a

88-302. Elevate the ATV and place a suitable standunder the frame.3. Remove the nuts from the wheel.4. Remove the wheel.1. Wheel nutsRemoving a wheel

8-3182. Lower the ATV to the ground.3. Tighten the wheel nuts to the specifiedtorques.Tightening torques:Front wheel nuts:45 Nm (4.5 m·kgf, 33 ft·lbf)

88-32TroubleshootingAlthough E-TON ATVs receive a thorough in-spection before shipment from the factory, troublemay occur during operation. Any proble

8-338Troubleshooting chart Check the fuel level inthe fuel tank.1. FuelThere is enough fuel.There is no fuel.Check the compression.Supply fuel.The eng

9-19CLEANING AND STORAGECleaningFrequent, thorough cleaning of your ATV will notonly enhance its appearance but will improve itsgeneral performance an

9-29nia) and areas where strong chemicals arestored.StorageShort-termAlways store your ATV in a cool, dry place and, ifnecessary, protect it against d

9-39plug, and then place the spark plug on thecylinder head so that the electrodes aregrounded. (This will limit sparking duringthe next step.)d. Turn

10-110SPECIFICATIONSTransmissionEngineTypeDisplacementBore / StrokeCompressionTypeChassisOverall LengthOverallWidthOverallHighWheel BaseDryWeightSuspe

10-210CarburetorMake/SizeMain JatPilot JetAir MixtureAdjustmentIdle Speed1.08mm0.35mmIdle 1600 - 1800rpmBack out 1 -2 turns2/4Kei-Hin withManualchoke

11-3ing, use the proper gear and maintain a steadyspeed when climbing a hill. If you stall or rollbackwards, follow the special procedure forbraking d

11-311Noise regulation TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED:Federal law prohibits the following acts or the causing thereof: (1) The removal

11-411Maintenance record Copies of work orders and/or receipts for parts you purchase and install will be required to document main-tenance done in ac

11-511New vehicles sold by an authorized dealer to original retail consumers are covered by this policy for a period of six (6) months from the date

11-611b) Is free from defects in material and workmanship which would cause such Scooter/moped vehicle to fail to conform with applicable regula

INDEXAAccessories and loading ... 6-6Air filter element, cleaning...

OOwner’s manual and tool kit... 8-2PParking ...

LOCATE AND READ OWNER’S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS.WARNINGALWAYS: use proper riding techniques to avoid vehicle overturns on hill

1-41Avoid Carbon Monoxide Poisoningcarbon monoxide can collect rapidly and you can quickly be overcome and unable to save yourself. Also, deadly level

11-5Down load your free copy of E-TON’sATV Rider Safety Handbook From www.etonamerica.com

LOCATION OF THE WARNING AND SPECIFICATION LABELS12345 (Only for Europe)6 (Only for Europe)2-12Read and understand all of the labels on your ATV. These

2-2221H7101-FID0-0000II

2-324356

3-13DESCRIPTION1. Fuel cock2. Rear wheel3. Footrest4. Front wheel1. Spark arrester2. Seat3. FootrestRight view3122314Left view

3-23101112Controls and instruments1. Rear brake lever2. Parking brake3. Front brake lever4. Throttle lever5. Main switch6. Fuel tank cap8. Handlebar s

4-14INSTRUMENT AND CONTROL FUNCTIONSMain switch The positions of the main switch are as follows:ONAll electrical systems are supplied with power, andt

Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.

4-24NFRHandlebar switches Engine stop switch “ENG. STOP” Set this switch to “ ” before starting the engine.The engine stop switch controls the ign

4-34Start switch “START” Push this switch to crank the engine with the start-er. See the starting instructions on page 6-1 priorto starting the engine

4-44Throttle lever Once the engine is running, movement of the throt-tle lever will increase the engine speed.Regulate the speed of the ATV by varying

4-54Vehicle speed limiter1. Loosen the locknut.2. To increase the maximum engine power available and the maximum speed of the ATV, turn theadjusti

4-64Front brake lever The front brake lever is located on the right handle-bar. To apply the front brake, pull the brake levertoward the handlebar gri

4-74Parking brake Use the parking brake before starting the engine orparking the ATV, especially on a slope. Apply thefront bake lever and push down t

4-84Fuel tank cap Remove the fuel tank cap by turning it counter-clockwise.FuelMake sure that there is sufficient fuel in the tank.Fill the fuel tank

4-94NOTICEUse only unleaded gasoline. The use of leadedgasoline will cause severe damage to internalengine parts, such as the valves and pistonYour E-

44-10Fuel cock (for USA)The fuel cock supplies fuel from the tank to the car-buretor while also filtering it.The fuel cock lever positions are explain

44-11ChokeThe choke is used to start a cold engine.Move the choke in direction (a) to turn on thechoke.Move the choke in direction (b) to turn off the

INTRODUCTIONCongratulations on your purchase of the E-TON ATV. This ATV represents the result of many yearsof E-TON experience in the production of fi

44-12To install the seatInsert the projection on the front of the seat into theseat holder and push down on the seat at the rear.TIPMake sure that the

5-15PRE-OPERATION CHECKSPre-operation check listInspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Alw

5-25Make sure that operation is smooth, and check cable free play.Lubricate cable and lever housing if necessary.Control cablesMake sure that operatio

5-35Inline fuel filterCheck the filter for dirt or damage before eachride and at each refueling. Replace the filter ifdirty or damaged. (See page 8-11

5-45TiresBrake operationTest the brakes at slow speed after starting out tomake sure they are working properly. If the brakesdo not provide proper bra

5-55The tire pressure gauge is included as standardequipment. Make two measurements of the tire pressure and use the second reading. Dust or dirt in t

5-65After extensive tests, only the tires listed belowhave been approved for this model by E-TONPOWER TECH CO., LTD.WARNINGTire informationThis ATV is

5-75Chassis fasteners Make sure that all nuts, bolts and screws are prop-erly tightened.Instruments and switches Check that all instruments and switch

6-16OPERATIONNOTICESee the “Engine break-in” section on page 6-4prior to operating the engine for the first time.1. Set the parking brake.2. Turn the

6-26Ambient temp./choke position6. Completely close the throttle lever and startthe engine by pushing the start switch.TIPIf the engine fails to start

WARNINGNOTICETIPThis is the safety alert symbol. It is used to alert you to potentialpersonal injury hazards. Obey all safety messages that follow thi

6-36crank the engine more than 10 seconds on eachattempt.7. If the engine is started with the choke in posi-tion (1), the choke should be returned to

6-46Engine break-in There is never a more important period in the life ofyour engine than the first 320 km (200 mi) or 20hours of riding. For this rea

6-56Parking on a slope1. Bring the ATV to a stop by applying the brakesin the drive position.2. Stop the engine.1. Parking brake lock button1. Locked

6-66Accessories and loading Genuine E-TON AccessoriesChoosing accessories for your ATV is an importantdecision. Genuine E-TON Accessories, which are a

6-76the following points in mind:Never exceed the weight limits shown. An over-loaded ATV can be unstable.If you are carrying cargo and towing a trail

7-1RIDING YOUR ATV 7

7-27GETTING TO KNOW YOUR ATVThis ATV is for recreation use. This section, Ridingyour ATV, provides general ATV riding instructionsfor recreational rid

7-37Not recommended for children under 16 yearsof age.16WARNINGA child under 16 should never operate an ATVwith engine size greater than 90 cc. Use by

7-47This ATV is designed to carry operator only –passengers prohibited.The long seat is to allow the operator to shift position as needed during opera

7-57123451. Protective clothing2. Goggles3. Gloves4. Boots5. HelmetApparelAlways wear the following to reduce risk of injuryin an accident:!Approved m

IMPORTANT NOTICEWelcome to the E-TON world of motor sports!This ATV is designed and manufactured for OFF-ROAD use only. It is illegal and unsafe to op

7-67Do not operate after consuming alcohol ordrugs.The operator’s performance capability is reducedby the influence of alcohol or drugs. Consuming alc

7-77Speed limitersFor riders less experienced with this model, thethrottle lever housing is equipped with a vehicle speed limiter. This speed limiter

7-87 Reduce speed and allow more room to stop. A heavier vehicle takes longer to stop. Avoid hills and rough terrain. Choose terrain careful

7-97Avoid wheelies and jumping. Attempting wheelies, jumps, and other stuntsincreases the chance of an accident, including an overturn. Never attempt

7-107The muffler and other engine parts become ex-tremely hot during operation and remain hot after the engine has stopped. To reduce the risk of fire

77-11BE CAREFUL WHERE YOU RIDEThis ATV is designed for off-road use only. Paved surfaces may seriously affect handling and control of the ATV, and ma

7-127Do not ride on any public road, street, or highway. Riding on public roads can result in collisions with other vehicles. In many states it is ill

77-13Know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden haza

7-147When riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the ATV. DO NOT use the flag pole brac

77-15Do not ride in areas posted “no trespassing”.Do not ride on private property without getting per-mission.Select a large, flat area off-road to be

TABLE OF CONTENTSSAFETY INFORMATION...1-1LOCATION OF THE WARNING AND SPECIFICATION LABELS...2-1DES

7-167To achieve maximum traction while riding off-road, the two rear wheels turn together at the same speed. Therefore, unless the wheel on the inside

77-17curves.Improper riding procedures such as abrupt throttlechanges, excessive braking, incorrect body move-ments, or too much speed for the sharpne

7-187If you are climbing a hill and you find that you havenot properly judged your ability to make it to thetop, you should turn the ATV around while

77-19If your ATV has stalled or stopped and you believeyou can continue up the hill, restart carefully to make sure you do not lift the front wheels w

7-207RIDING DOWNHILLWARNINGGoing down a hill improperly could cause over-turns or loss of control. Always follow proper procedures for going down hill

77-21CROSSING A SLOPEWhenever possible, ride your ATV straight downhill. Avoid sharp angles which could allow the ATV to tip or roll over. Carefully c

7-227CROSSING THROUGH SHALLOW WATERThe ATV can be used to cross slow moving, shallow water of up to a maximum of 20 cm (8 in) in depth. Before enterin

77-23Test your brakes after leaving the water. If necess-ary, apply them several times to let friction dry out the linings. Do not continue to ride yo

7-247Undrained water cause damage or improper operation. RIDING OVER ROUGH TERRAINRiding over rough terrain should be done with ca-ution. Look out fo

77-25SLIDING AND SKIDDINGCare should be used when riding on loose or slip-pery surfaces since the ATV may slide. If unexp-ected and uncorrected, slidi

Cleaning the spark arrester ... 8-17Adjusting the carburetor ... 8-18Adjusting the engine idling speed ...

7-267With practice, over a period of time, skill at con-trolled sliding can be developed. The terrainshould be chosen carefully before attempting such

77-27If your ATV can’t make it up a hill you are tryingto climb:Turn the ATV around if you still have forwardspeed. If not, stop, dismount on the uphi

8-18PERIODIC MAINTENANCE AND MINOR REPAIRPeriodic inspection, adjustment, and lubrication will keep your vehicle in the safest and most efficient cond

8-281. Owner ’s manual2. Owner ’s tool kit and low-pressure tire gauge12it for you.TIPIf you do not have the tools or experience requiredfor a partic

8-38Periodic maintenance chart for the emission control system TIPFor ATVs not equipped with an odometer or an hour meter, follow the month maintenanc

8-486*Exhaust systemCheck for leakage and replace gasket(s) if neces-sary.Check for looseness and tighten all screw clampsand joints if necessary.√√√7

8-58General maintenance and lubrication chart NO. ITEMCHECK OR MAINTENANCE JOBINITIAL EVERYWhichev-er comes firstmonth 1 3 6 6 12km(mi)320(200)1300(800

8-68√√√√√√√√√√√√√√√√10*Shock absorber assembliesCheck operation and correct if necessary.Check for oil leakage and replace if necessary.11*Front knuck

8-78NO. ITEMCHECK OR MAINTENANCE JOBINITIAL EVERYWhichev-er comes firstmonth 1 3 6 6 12km(mi)320 (200)1300(800)2500 (1600)2500(1600)5000(3200)hours 20

8-88TIP The air filter needs more frequent service if you are riding in unusually wet or dusty areas. Hydraulic brake serviceRegularly check and,

SPECIFICATIONS ... 10-1CONSUMER INFORMATION ...11-1Identification numbers ...

8-98Checking the spark plugThe spark plug is an important engine component,which is easy to check. Since heat and depositswill cause any spark plug to

88-101. Spark plug gapSpark plug gap:0.6–0.7 mm (0.024–0.028 in)2. Clean the surface of the spark plug gasketand its mating surface, and then wipe of

8-118Engine oilThe engine oil level should be checked beforeeach ride. In addition, the oil must be changed atthe intervals specified in the periodic

88-124. Insert the dipstick into the filler hole (withoutscrewing it in), and then remove it again tocheck the oil level.TIPThe engine oil should be b

8-1387. Add the specified amount of the recommend-engine oil filler cap.Tightening torque:Engine oil drain bolt:8 Nm (0.8m·kgf, 5.8 ft·lbf)Recommended

88-142. Final transmission oil drain bolt4. Install the drain bolt, and then tighten it to thespecified torque.Final transmission oil The final tran

8-158frequently if you are riding in unusually wet or dustyareas.Cleaning the air filter element The air filter element should be cleaned at the in-te

88-162. Remove the air filter case cover by removingthe bolts. 1. Air filter case cover 2. Air filter element 213. Clean the air filter element with c

8Cleaning the spark arrester (for USA) Be sure the exhaust pipe and muffler are cool be-fore cleaning the spark arrester.1. Remove the screw.3. Spark

88-18Adjusting the carburetor The carburetor should be checked and, if neces-sary, adjusted at the intervals specified in the peri-odic maintenance an

SAFETY INFORMATIONAN ATV IS NOT A TOY AND CAN BE HAZARD-OUS TO OPERATE.An ATV handles differently from other vehicles, in-cluding motorcycles and cars

8-198TIPA diagnostic tachometer is needed to make thisadjustment.1. Start the engine and warm it up.TIPThe engine is warm when it quickly responds to

88-20The throttle cable free play should measure 1.0–3.0 mm (0.04–0.12 in) at the throttle lever. Period-ically check the throttle cable free play and

8-218Adjusting the front brake lever free playThe brake lever free play must be checked and, ifnecessary, adjusted at the intervals specified inthe pe

88-222. While applying the front brake, turn out theright brake cable adjusting nut in direction (a) to increase the free play, and in direction (b) t

8-238The rear brake pads must be checked for wear at theintervals specified in the periodic maintenance andlubrication chart. Each brake pad is provid

88-24Have an E-TON dealer change the rear brake fluidat the intervals specified in the TIP after the periodicmaintenance and lubrication chart. In add

8-258Checking and lubricating the cables The operation and the condition of all control ca-bles should be checked before each ride, and thecables and

88-26Checking the wheel hub bearings The front and rear wheel hub bearings must be checked at the intervals specified in the periodicmaintenance lubri

8-2782. If the battery will be stored for more than twomonths, check it at least once a month and fullycharge it if necessary.To install the batteryTI

88-281. Turn the key to “OFF” and turn off all electricalcircuits.NOTICETo prevent accidental short-circuiting, turn offthe main switch when checking