Yamaha YQ50 Service Manual page 82

ENGINE ASSEMBLY AND ADJUSTMENT
313005
313006
CRANKSHAFT AND CRANKCASE
CAUTION:
To protect the crankshaft against scratches
and to facilitate the engine assembly and
installation, apply grease to oil seal lips,
and engine oil to bearings.
1. Attach :
• Crankshaft installation tool Q, W, E, R
Crankshaft installation tool :
308002
2. Install :
• Crankshaft
(to left crankcase)
NOTE:
Hold the connecting rod at top dead center with
one hand while tightening the nut of the
installation tool with the other. Tighten the
installation tool until the crankshaft bottoms
against the bearing.
3. Install :
• Dowel pins
• Spacer
4. Apply :
• HEATPROOF or Yamaha Bond No.1215
To the mating surfaces of both case halves.
HEATPROOF or Yamaha Bond
No.1215
4-21
ENG
Q : 90890-01274
W : 90890-01275
E : 90890-01277
R : 90890-01411