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760-023
AE00971
SPARK PLUG INSPECTION
You should periodically remove and inspect the spark
plug.
1. Check for discoloration and remove the carbon.
2. Check the spark plug type and gap.
a Gap
3. Install the spark plug.
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a
760-001a
Standard electrode color:
Tan Color
Standard Spark Plug:
BPR4ES (NGK)
Spark Plug Gap:
0.7–0.8 mm (0.028–0.031 in)
Spark Plug Torque:
20 N•m (2 kgf•m, 14 lbf•ft)
AE00431
CARBURETOR ADJUSTMENT
The carburetor is a vital part of the engine. Adjusting
should be left to a Yamaha dealer with the profession-
al knowledge, specialized data, and equipment to do
so properly.
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