Removing The Timing Belt And Sprocket; Checking The Timing Belt And Sprocket - Yamaha F30B 2018 Service Manual

Removing the timing belt and sprock-
et
When the timing belt is not installed, do not
turn the crankshaft or driven sprocket. Oth-
erwise, the pistons and valves could collide
with each other and be damaged.
1. Remove:
• Timing belt "1"
1
2. Loosen:
• Drive sprocket nut "1"
TIP:
Use the air tool to loosen the drive sprocket nut
easily.
1
2
2
7-15
Flywheel magneto and timing belt
Crankshaft holder 16 "2"
90890-06355
Crankshaft holder "2"
YW-06355
3. Loosen:
• Driven sprocket bolt "1"
When loosening the driven sprocket bolt,
do not turn the camshaft.
A
1
B
1
A. Worldwide
B. USA and Canada
Flywheel holder "2"
90890-06522
Flywheel magneto holder "3"
YB-06139

Checking the timing belt and sprocket

1. Check:
• Interior and exterior of the timing belt
• Drive sprocket
• Driven sprocket
Cracked/damaged/worn  Replace.
2
3