Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Throttle Full Close Switch: Testing and Inspection

1. Warm up the engine and run it at idle.
2. Connect a tachometer to the engine.

Idle Switch Inspection:





3. Connect a voltmeter to the idle switch terminal (LG/R) as shown.
4. Increase the engine speed to more than 2,000 rpm; decelerate gradually and verify that the voltmeter indicates as shown in the following chart.

Reference Chart:




Adjusting Idle Speed:





5. If not as specified, turn the adjust screw to adjust.