3 - 6
CHK
ADJ
ADJUSTING THE TIMING CHAIN
Adjustment free.
ADJUSTING THE IDLING SPEED
1. Start the engine and let it warm up for sev-
eral minutes.
2. Remove:
• driver seat
• passenger seat
• console
Refer to “SEATS, ENCLOSURE, HOOD
AND CARGO BED” in chapter 8.
3. Lift the cargo bed up.
4. Attach:
• tachometer
(to the spark plug lead)
Digital engine test tachometer
P/N. YU-8036-C
Engine tachometer
P/N. 90890-03113
5. Check:
• engine idling speed
Out of specification
→
Adjust.
6. Adjust:
• engine idling speed
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a. Turn the throttle stop screw
1
in or out until
the specified idling speed is obtained.
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Engine idling speed
1,450 ~ 1,550 r/min
Turning in
Idling speed becomes
higher.
Turning out
Idling speed becomes
lower.
ADJUSTING THE TIMING CHAIN/
ADJUSTING THE IDLING SPEED
Summary of Contents for 2004 Rhino 660 YXR660FAS
Page 1: ...LIT 11616 17 23 5UG F8197 10 YXR660FAS SERVICE MANUAL ...
Page 6: ......
Page 40: ...2 11 SPEC ENGINE SPECIFICATIONS Cylinder head tightening sequence ...
Page 55: ...2 26 SPEC COOLANT FLOW DIAGRAMS 1 Coolant outlet hose 2 Radiator inlet pipe 2 1 ...
Page 383: ...9 31 ELEC LIGHTING SYSTEM ...
Page 418: ......
Page 419: ......
Page 420: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...