Yamaha YFM660RN Service Manual
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Contents
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9 - 3TRBLSHTGFAULTY GEAR SHIFTING/CLUTCH SLIPPING/DRAGGINGFAULTY GEAR SHIFTINGHARD SHIFTINGRefer to “CLUTCH DRAGGING”.SHIFT PEDAL DOES NOT MOVEShift shaft Bent shift shaftShift drum and shift fork Groove jammed with impurities Seized shift fork Bent shift fork guide barTransmission Seized transmission gear Jammed impurities Incorrectly assembled transmissionShift guide Broken shift guideJUMP-OUT GEARShift shaft Improperly adjusted shift lever position Improperly returned stopper leverShift fork Worn shift forkShift drum Improper thrust play Worn shift drum grooveTransmission Worn gear dogCLUTCH SLIPPING/DRAGGINGCLUTCH SLIPPINGClutch Loose clutch spring Fatigued clutch spring Worn friction plate Worn clutch plate Incorrectly assembled clutchEngine oil Low oil level Improper quality (low viscosity) DeteriorationCLUTCH DRAGGINGClutch Warped pressure plate Unevenly tensioned clutch springs Match marks not aligned Loose clutch boss nut Burnt primary driven gear bushing Bent clutch plate Swollen friction plate Broken clutch bossTransmission oil High oil level Improper quality (high viscosity) Deterioration |
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