2011 Yamaha Motorsports Big Bear 400 4x4 IRS Owners Manual - Page 107
2011 Yamaha Motorsports Big Bear 400 4x4 IRS Manual
Page 107 highlights
TIP If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. EBU24047 1 (b) (a) 2 3 Adjusting the throttle lever free play The throttle lever free play should be checked and, if necessary, adjusted at the intervals specified in the periodic maintenance and lubrication chart. The throttle lever free play should measure 3.0- 5.0 mm (0.12-0.20 in) as shown. Periodically check the throttle lever 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 lever free play. 1. Slide the rubber cover back. 2. Loosen the locknut. 3. To increase the throttle lever free play, turn the throttle lever free play adjusting bolt in direction (a). To decrease the throttle lever free play, turn the adjusting bolt in direction (b). 8-27 4 1. 2. 3. 4. Rubber cover Throttle lever free play adjusting bolt Locknut Throttle lever free play 4. Tighten the locknut. 5. Slide the rubber cover to its original position. EBU24060 8 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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