Yamaha YP250 5GM2-AE1 2000, Service Manual

Page: 62 / 105

52
CRANKCASE AND CRANKSHAFT
ENG
NOTE:
NOTE:
CAUTION:
NOTE:
CRANKCASE AND CRANKSHAFT
CRANKCASE REMOVAL
1. Remove
Crankcase 2
1
Remove the crankshaft assembly with the
crankcase separating tool
2 .
Make sure that the crankcase separating tool
is centered over the crankshaft assembly.
Crankshaft separating tool
90890-01135
CRANKSHAFT REMOVAL
1. Remove:
Timing chain 1
Before removing the crankshaft assembly, re-
move the timing chain from the crankshaft
sprocket.
If the timing chain hooks to the crankshaft
sprocket, the crankshaft cannot be removed.
crankshaft 1
Remove the crankshaft assembly with the
crankcase separating tool
2
Do not tap on the crankshaft.
Crankshaft separating tool
90890-01135
CRANKSHAFT INSTALLATION
1. Install:
Crankshaft 1
Crankcase 2
Install the crankshaft assembly with the
crankshaft installer pot
3 , crankshaft install-
er bolt 4 , adapter 5 , spacer 6 .
Hold the connecting rod at top dead center
(TDC) with one hand while turning the nut of the
crankshaft installing tool with the other.
Turn the crankshaft installing tool until the
crankshaft assembly bottoms against the bear-
ing.
Do not tap on the crankshaft.