- warm up the engine (oil temperature not less than 80X);
- check and, if necessary, adjust the gaps between the electrodes of the spark plugs, check the initial ignition timing;
- make sure that the current consumers, including the air conditioner (if he is), off;
- if the fuel lines are disconnected from the injectors after they are connected, increase the crankshaft speed several times to 3000 rpm, then let the engine idle for at least 2 minutes;
- make sure that a vibrating sound is made when the ignition is turned on;
- make sure the air filter element is clean;
- check if the throttle valve is set correctly. The electric fan of the cooling system should not turn on during adjustment.
To adjust the engine idle speed:
- disconnect connector 2 (pic. 2-176) ignition coils;
- connect a tachometer according to the instruction manual;
- disconnect the crankcase ventilation hose;
- start the engine and check the engine idle speed, which should be within 950-1050 rpm;
- if necessary, set the desired idle speed with the idle speed adjusting screw (pic. 2-177), located on the throttle body.
After adjustment, connect the crankcase ventilation hose and connect the ignition coil connector.
To adjust CO in the exhaust gases:
- connect the gas analyzer and control tachometer according to the operating instructions;
Note. When adjusting the CO content, do not press or pull out the adjusting screw. After inserting the socket wrench into the screw head, do not press the accelerator pedal. not to damage the adjusting screw.
- start the engine at idle and check the CO content. which should be in the range of 0.5-1.5%;
- in case of deviation from the norm, remove the plug of the mixture quality adjusting screw located between the fuel dispenser and the air supply cap of the air flow meter (pic. 2-178);
- with socket wrench for socket head screws «for 3» (pic. 2-179) turn the mixture quality adjusting screw until the CO content is within 0.5-1.5%. When the screw is turned clockwise, the CO content in the exhaust gases increases, and vice versa.
After adjustment, put a new plug on the mixture adjustment screw.
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