Tuning - Yamaha Fazer Service Manual

¿
Â
À
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CARBURETOR TUNING
8. Adjust :
• Idling speed by Throttle Stop Screw ¿
Engine Idling Speed :
9. Adjust :
• Throttle Cable free play
Refer
ADJUSTMENT" in Chapter 3, Page no 3-9
Carburetor Tuning
'CO MEASUREMENT AND ADJUSTMENT"
1. Start the Engine and let it worm up by
running approximately 4 kms.
2. Attach :
• Tachometer to the Spark Plug lead
3. Check :
• Engine idling speed
If out of sepecification Ÿ adjust
Engine Idling Speed :
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Adjustment Steps
Turn the Throttle Stop Screw ¿ in or out until
specified idling speed is obtained.
Turning in
Turning Out Ÿ RPM Decareses
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4. Insert :
• Sampling probe À of 'CO' tester
(calibrated) to the exhaust pipe Á using
suitable adapter Â
Á
'CO' density :
If out of specification Ÿ adjust
5. Adjust :
• 'CO' density through pilot screw
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Adjustment Steps
Turn the Pilot Screw à in or out until the speci-
fied 'CO' density is achieved.
Turning Out Ÿ 'CO' density Increases
Turning In
• Reset idling speed as per specifications
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5-8
CARB
1300 - 1500 R.P.M.
to "THROTTLE CABLE
1300 - 1500 R.P.M.
Ÿ RPM Increases
2.5% ± 1.5% v/v
Ÿ 'CO' density Decareses