1983-1988 Genuine Yamaha Enticer/Excell III 340 Series Snowmobile Service Manual, Page 11Get this manual
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CHAPTER 2 ENGINE
2-1ENGINE REMOVAL 2-1 2-2DISASSEMBLY AND INSPECTION 2-2 ARecoil Starter 2-2 BFlywheel Magneto 2-3 CPrimary Sheave 2-4 DOil Pump 2-4 ETop 'End 2-6 FBottom End 2-10 2-3ASSE