2007-2009 Suzuki LTZ90 factory service manual, Page 221Get this manual

2007-2009 Suzuki LTZ90 factory service manual, Page 221

SERVICING INFORMATION ENGINE LACKS POWER Symptom, possible causes and remedy Loss of valve clearance Weakened valve springs
fuel level Air leakage from intake pipe Incorrect spark plug Clogged exhaust pipemuffler Ignition timing too advanced due
to defective timingDIRTY OR HEAVY EXHAUST SMOKE Symptom, possible causes and remedy Too much engine oil in the engine Worn
piston rings or cylinder Worn valve guides Scored or scuffed cylinder wall Worn valves stems Defective stem seal Worn oil
ring side rail AdjustReplaceAdjustReplaceRepairClean or replaceAdjust or replaceCleanRegap or replaceTighten or replaceAdjust
float heightReplaceRetighten or replaceDrain out excess oil CleanAdd oilChangeAdjust float heightTighten or replaceChangeClean