Measures When the Idle Speed Emission Value Exceeds the
Standard
Periodic inspection (maintenance plan)
Qualified
Measure idle emission (note 1)
Qualified
Adjust Carburetor (note2)
Qualified
Remove and clean
the carburetor
Qualified
Qualified
for
delivery
Replace the carburetor
Qualified
Note:
Dismantle and repair
engine
•Valve（leakage）
•Piston（abrasive）
•Combustor（cleaning
Qualified
1. Measure it with the idle speed measurement program.
2. Adjust the engine speed with stop screws to live up to requirements and measure CO/HC at the
idle speed.
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