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Spark Plug Inspection; Carburetor Adjustment - Yamaha EF1000iS - NA Inverter Lightweight Portable Generator 10 Owner's Manual

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AE01026

SPARK PLUG INSPECTION

You should periodically remove and inspect the spark
plug.
1. Remove the cover 1.
760-025
2. Check for discoloration and remove the carbon.
Standard electrode color:
Tan Color
760-024
3. Check the spark plug type and gap.
Standard Spark Plug:
CR4HSB (NGK)
Spark Plug Gap:
0.6–0.7 mm (0.024–0.028 in)
760-001a
a Gap
4. Install the spark plug.
Spark Plug Torque:
12.5 N•m (1.25 kgf•m, 9 lbf•ft)
5. Install the cover.
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.
– 22 –

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