Checking and Adjusting Idle-rpm, Ignition Timing and Mixture Ratio (Cont'd)
MA-45flowchartChecking and Adjusting Idle-rpm, Ignition Timing and Mixture Ratio (Cont'd)
1
A (continued from MA-44)
2
Race engine (2,000 - 3,000 rpm) 2 or 3 times under no-load, and then run engine at idle speed.
3
Adjust idle speed by turning throttle adjusting screw. Idle speed: rpm 900 ± 50
4
Confirm ignition timing at idle speed. Ignition timing: B.T.D.C. degree 15 ± 5
N.G.
Clean or replace vacuum hoses.
Clean or replace vacuum hoses.
Check distributor and vacuum hoses.
Repair or replace distributor or vacuum controller.
Without "CO"-meter
C (without "CO"-meter, continues off page)
O.K. (with "CO"-meter)
5
With "CO"-meter
6
Check "CO"% at idle speed. Idle "CO": % 1.5 ± 0.5
N.G.
Adjust idle "CO"% to 1.5 ± 0.5% by turning idle adjusting screw.
Adjust idle "CO"% to 1.5 ± 0.5% by turning idle adjusting screw.
Race engine (2,000 - 3,000 rpm) 2 or 3 times under no-load, and then run engine at idle speed.
Adjust idle speed by turning throttle adjusting screw. Idle speed: rpm 900 ± 50
Confirm ignition timing at idle speed. Ignition timing: B.T.D.C. degree 15 ± 5
O.K.
END