Idling Co Measurement, And Adjustment - Yamaha Libero Workshop Manual

R-47
IDLING CO. MEASUREMENT AND ADJUSTMENT
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2
7. Install
• Valve Covers (with O-ring) ¿
• Spark Plug
• Cylinder Head Side Cover À
Valve cover (intake and exhaust) :
17.5 Nm (1.75 m kg, 13 ft-lb)
Bolts (cylinder head side cover) :
10 Nm (1.0 m kg, 7.2 ft-lb)
8. Install
• Seat
• Side Covers
• Fuel Tank
Refer to the "SIDE COVERS, SEAT AND
FUEL TANK" section Page no 3-3
IDLING CO. MEASUREMENT AND
ADJUSTMENT
1. Start the Engine and let it warm up by run-
ning the Motorcycle approx. 4 kms.
2. Attach :
• Inductive Tachometer to the Spark Plug
Lead.
Tachometer :
YSST - 613
3. Check :
• Engine idling speed (standard)
Out of specification Ÿ Adjust.
Turn the Throttle Stop Screw ¿ in or out
until specified idling speed is obtained.
” Increasing in rpm
Turning IN
Turning OUT ” Decrease in rpm
Engine idling speed :
1,300 ~ 1,500 r/min
NOTE :
Before checking Engine idle RPM always check
throttle cable free movement and free play.
4. Insert :
• Sampling probe ¿ (CO. tester ) to the
exhaust pipe À
CO.concentration :
2.5% ± 1.5 V/V
Out of specification ” Adjust.
3-8
INSP
ADJ