2009-2012 Honda MUV700 Big Red Service Manual, Page 582Get this manual
TROUBLESHOOTING
ENGINE LACKS POWER
1Drivetrain Inspection Raise wheel off the ground and spin by handDoes the wheel spin freely? NOBrake dragging Worn or damaged wheel bearing Damaged differential or final drive bearing Faulty differential or final drive
- GO TO STEP 2
2Tire Pressure Inspection Check tire pressure Are the tire pressures correct? NO YESFaulty ire valve Punctured tireGO TO STEP 3
3Engine Condition Inspection Accelerate lightlyDoes the engine speed increase? NOClogged air cleaner Restricted fuel flow Clogged muffler Restricted fuel tank breather
- GO TO STEP 4
4Engine Condition Inspection Accelerate or run at high speedIs there knocking? YESWorn piston and cylinder Use of poor quality fuel Excessive carbon build-up in combustion chamber Ignition timing too advance (Faulty PCM)