EBS00339 CHECKING THE BEARINGS 1. Check: bearings Clean and lubricate, then rotate the inner race with a finger. Roughness Replace. EBS00338 CHECKING THE CRANKCASE 1. Thoroughly wash the case halves in a mild solvent. 2. Clean all the gasket mating surfaces and crankcase mating surfaces thoroughly. 3. Check: crankcase Cracks/damage Replace. oil delivery passages Clogged Blow out with compressed air. 1 a EBS00342 ASSEMBLING THE CRANKCASE 1. Apply: sealant 1 (to the mating surfaces of both case halves) 2 2 Yamaha bond No. 1215 90890-85505 (Three bond No.1215 ® ) NOTE: Apply two coats of sealant to the area a shown in the illustration. 2. Install: dowel pins 2 4 - 73 CRANKCASE ENG