1987-1997 Yamaha Big Bear 350 4x4 service manual, Page 95Get this manual
1 1'.1 2Inspect: Crankshaft bearing surfaces WearScratchesRust spots ReplaceLubricate the bearing immediately after examining then to prevent rust
Crankshaft Reassembling 1Install: Crank pin The crankshaft CD and the crank pin oil passages must be properly interconnected with tolerance of less than mm in)