CARBURETOR - Checking and Adjusting Idle-rpm, Ignition Timing and Mixture Ratio (Models without catalyzer) (Cont'd)
EF & EC-162flowchartIdle speed (rpm in "N"): GA13DS M/T 750±50; GA14DS M/T 750±50, A/T 850±50; GA16DS M/T 750±50, A/T 850±50. Ignition timing at idle (degree B.T.D.C. in "N"): GA13DS 9±5, GA14DS 10±5, GA16DS 12±5 (or 10±5 for Europe, Hong Kong, Singapore and Middle East). "CO"-meter vs without-meter branches.
Checking and Adjusting Idle-rpm, Ignition Timing and Mixture Ratio (Models without catalyzer) (Cont'd)
1
(A) connector from previous page
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 (in "N" position) GA13DS M/T 750±50 GA14DS M/T 750±50 A/T 850±50 GA16DS M/T 750±50 A/T 850±50
4
Confirm ignition timing at idle speed. Ignition timing: degree B.T.D.C. (in "N" position) GA13DS 9±5 GA14DS 10±5 GA16DS 12±5, 10±5* *For Europe, Hong Kong, Singapore and Middle East
N.G.
Check distributor and vacuum hoses.
Without "CO"-meter
(C) Without "CO"-meter
With "CO"-meter
return to step 5
O.K.
5
Disconnect idle compensator vacuum hose from vacuum connector on intake manifold and install suitable blind cap to vacuum connector. Check idle "CO"%. Idle "CO"% 1.0 - 2.5%
O.K.
Reconnect idle compensator vacuum hose to vacuum connector.
Reconnect idle compensator vacuum hose to vacuum connector.
END
N.G.
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.
Check "CO"% at idle speed. Idle "CO": % 1.5 ± 0.5
O.K.
7
Reconnect idle compensator vacuum hose to vacuum connector.
END