Operation CHARM: Car repair manuals for everyone.

Primary Throttle Valve Clearance

I-Mark
1. Place choke valve in the full open position.
2. Open throttle valve slowly while pushing choke valve lightly in the closing direction. Set choke valve to second stage of the fast idle cam.
3. Check primary throttle valve clearance. On automatic transmission models, clearance should be .0323 inch. On manual transmission models, clearance should be .0256 inch.