2009 Yamaha Motorsports Big Bear 400 4x4 IRS Owners Manual - Page 119

2009 Yamaha Motorsports Big Bear 400 4x4 IRS Manual

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Page 119 highlights

TIP If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. EBU24044 Adjusting the throttle cable free play The throttle cable free play should be checked and, if necessary, adjusted at the intervals specified in the periodic maintenance and lubrication chart. The throttle cable free play should measure 3.0- 5.0 mm (0.12-0.20 in) at the throttle lever. Periodically check the throttle cable free play and, if necessary, adjust it as follows. TIP The engine idling speed must be checked, and adjusted if necessary, before adjusting the throttle cable free play. 1. Loosen the locknut. 2. To increase the throttle cable free play, turn the throttle cable free play adjusting bolt in direction (a). To decrease the throttle cable free play, turn the adjusting bolt in direction (b). 8-27 1. Locknut 2. Throttle cable free play adjusting bolt 3. Throttle cable free play 3. Tighten the locknut. 8 EBU24060 Valve clearance The valve clearance changes with use, resulting in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart.

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8-27
8
TIP
If the specified idling speed cannot be obtained as
described above, have a Yamaha dealer make the
adjustment.
EBU24044
Adjusting the throttle cable free play
The throttle cable free play should be checked
and, if necessary, adjusted at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
The throttle cable free play should measure 3.0–
5.0 mm (0.12–0.20 in) at the throttle lever. Period-
ically check the throttle cable free play and, if nec-
essary, adjust it as follows.
TIP
The engine idling speed must be checked, and ad-
justed if necessary, before adjusting the throttle ca-
ble free play.
1.
Loosen the locknut.
2.
To increase the throttle cable free play, turn
the throttle cable free play adjusting bolt in di-
rection (a). To decrease the throttle cable free
play, turn the adjusting bolt in direction (b).
3.
Tighten the locknut.
EBU24060
Valve clearance
The valve clearance changes with use, resulting in
improper air-fuel mixture and/or engine noise. To
prevent this from occurring, the valve clearance
must be adjusted by a Yamaha dealer at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
1. Locknut
2.
Throttle cable free play adjusting bolt
3.
Throttle cable free play