Fast Idle Speed Adjustment
Press the lever on a warm engine and adjust the fast idle speed with the mixture quantity screw.
Adjusting the quality (composition) of the fast idle mixture
Adjusting idle speed and carbon monoxide content in exhaust gases
1 - mixture quantity screw
2 - height adjustment screw (quality of the mixture) jets
Idle speed adjustment screws
2, 3 — adjusting screws for mixture quality (composition)
1. Remove the air filter.
2. Install the 13 0 000 air filter simulator by connecting its hose to the air filter and cylinder head.
3. Using the mixture quantity adjusting screw 1 (see photo), set the proper engine crankshaft speed at idle.
4. Remove the threaded plugs from the exhaust manifolds and screw in sensors 13 0 020 instead.
5. Attach the gas analyzer and adjust the screws 2 (for rear exhaust manifold) and 3 (for front exhaust manifold) quality (composition) of the mixture to achieve the specified content of carbon monoxide (CO) in the exhaust gases.
6. After completing the adjustment, install new blue plastic plugs into the holes for mixture quality adjustment screws 2 and 3.