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70/90/100 

Owners Manual 

 

 

Summary of Contents for Pro MXR 100

Page 1: ...70 90 100 Owners Manual...

Page 2: ...e THE APEX MOTOR USA PRO MXR IS A COMPETION MODEL ONLY AND IS NOT MANUFACTURED FOR NOR SHOULD IT BE USED ON PUBLIC STREETS ROADS OR HIGHWAYS THE USE OF THIS ATV SHOULD BE LIMITED TO PARTICIPATION IN S...

Page 3: ...dure 5 Break In Procedure 5 Starting Procedure 6 General Riding Tips 7 Maintenance 8 Clutch Tuning Procedure 9 Clutch Tuning Procedure 10 Drive Belt 11 Carburetor Tuning 11 Reeds 11 Exhaust 11 Camber...

Page 4: ...y Kick Transmission Auto CVT Drive Chain Fuel Capacity 1 5 gal Fuel Type Min 100 Octane Recommended Oil type Maxima 927 2 Stroke Oil Pre mix Ratio 40 1 Recommended Trans Oil Maxima 75W Spark Plug BR8E...

Page 5: ...ic requirements Break in Procedure The Apex Pro MXR is a high performance machine and break in time is very important for maximum life and performance Adhering to the following break in schedule will...

Page 6: ...d strands of the cable inside the throttle housing Check for loose bolts and nuts and re torque as necessary Verify that the air filter is clean and properly saturated with oil Turn the fuel on by rot...

Page 7: ...ake sure the rider s foot is not resting on the rear brake pedal while riding Evaluate the ATV s jetting only after it has been warmed up to race temperatures A properly maintained machine is safer fa...

Page 8: ...drive chain for Proper tension and adjust if necessary Adequate lubrication and lubricate if necessary o Check frame for cracks in the metal or cracks in the paint that might indicate that the metal...

Page 9: ...Remember to account for the 1 mm shim if applicable Do Not Install the Fixed Plate on Variator at this time It will be installed at the end Rear Drive Pulley Assembly 1 Remove the Clutch Nut from the...

Page 10: ...on often before each race If the rollers are flat spotted replace them or belt damage will occur Lower the Variator weight for more stall off the line this will decrease top speed slightly Run lower r...

Page 11: ...1 turn to start Turning more out will increase low end punch but load up off the pipe more at lower RPMs Turning in will clean up off pipe cackle but soften bottom end of motor Carburetor Cleaning 1...

Page 12: ...ilencer needing to be repacked are The bike is louder than normal A loss of power Camber Angle The Camber angle is determined by the desired use of the unit Most tires develop maximum cornering force...

Page 13: ...the steering effort on the rider but reduce the high speed stability of the steering Caster adjustments should be performed by knowledgeable chassis tuners Steering Toe Toe settings affect three majo...

Page 14: ...13...

Page 15: ...switch Faulty ignition coil Poorly connected broken or shorted wires Broken or shorted spark plug wire Faulty ignition switch Low compression Worn cylinder and piston rings Damaged cylinder head gaske...

Page 16: ...of ignition coil to spark plug Faulty or damaged spark plug Intermittent engine power Electrical system Poor ground wire connection Poor performance at low idle Bad ignition timing Faulty CDI unit Re...

Page 17: ...ring Wheel bearing needs lubrication Low tire pressure Punctured tire Faulty tire valve Engine speed does not increase when accelerated lightly Fuel air mixture too rich Clogged air cleaner Clog in mu...

Page 18: ...wheel hub Excessive wheel bearing play Bent swing arm Bent frame Swing arm pivot bushing excessively worn Worn or damaged brake rotor Loose axle nut Improper brake adjustment Bent or damaged spindle W...

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