G-520
SPARK PLUG INSPECTION
You should periodically remove and inspect the
spark plug.
1. Check for discoloration and remove the car-
bon.
2. Check the spark plug type and gap.
1 Gap
3. Install the spark plug.
G-512
CARBURETOR ADJUSTMENT
The carburetor is a vital part of the engine.
Adjusting should be left to a Yamaha dealer with
the professional knowledge, specialized data, and
equipment to do so properly.
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