Piston Pin And Piston; Crankcase - Yamaha TZR50 '03 Service Manual

DISMANTLING THE ENGINE

PISTON PIN AND PISTON

1. Take out:
NOTE:
Before removing the pin clip from the piston,
cover the crankcase with a clean cloth to pre-
vent the clip from falling into the crankcase.
2. Take out:
NOTE:
Before taking out the pin, remove any burrs
from the slot of the clip and the pin hole. If it
were still difficult to take out the pin after
removing any burrs, use the piston pin extrac-
tor (90980 - 01304)
CAUTION
Do not use a hammer to take out the piston
pin

CRANKCASE

1. Take out:
2. Take out:
NOTE:
Loosen each of the screws a quarter of a turn.
Then unscrew them completely and take them
out.
3. Separate
NOTE:
Tap these gently and alternately
4-12
• Piston pin clip
• The piston pin
• Piston
• Bearing
• Circlip
• The output gear
• Circlip
• The crankcase securing screws
• Crankcase
ENG