Installing The Plunger Seal; Installing The Crankshaft Assembly - Yamaha YFM250RX 2008 Service Manual

CRANKSHAFT ASSEMBLY
3. Check:
• Timing chain guide (intake side)
Damage/wear → Replace the timing chain
guide (intake side)

INSTALLING THE PLUNGER SEAL

1. Install:
• Compression spring
• Plunger seal
• Dowel pin
Check the plunger seal smooth operation
pushing the plunger seal by your finger.
INSTALLING THE CRANKSHAFT
ASSEMBLY
1. Install:
• Crankshaft assembly
NOTE: NOTE:
Install the crankshaft assembly with the crank-
shaft installer pot
, adapter
Crankshaft installer pot
90890-01274
Installing pot
YU-90058
Crankshaft installer bolt
90890-01275
Bolt
YU-90060
Spacer
90890-01288
Adapter (M10)
90890-01383
Adapter #2
YU-90062
4-75
ENG
, crankshaft installer bolt
and spacer .