EBU15650 Speed limiter The speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. Screwing in the adjuster limits the maximum engine power available and decreases the maximum speed of the ATV. Your ATV was delivered with an adjustable speed limiter and also with an air intake restric- tor plate. Yamaha recommends that all begin- ning riders start off with the speed limiter screw turned in and the air intake restrictor plate installed to limit the amount of speed available while they learn. The limiter screw may be grad- ually turned out to increase maximum speed as the beginner becomes more familiar with operat- ing the ATV.
Parents should decide when to adjust the ATV for more power as their young- ster’s riding skills improve. Once the ATV rider can operate with skill at the top speed permitted by adjusting the speed limiter alone, the air intake restrictor plate can be removed. Since removal of this plate will result in a significant increase in power, turn the speed limiter com- pletely back in again; adjust it out in stages as you did before. Adjusting for maximum throttle lever movement without removing the air intake restrictor plate will cause the engine to run roughly at higher speeds. For air intake restrictor plate removal instruc- tions, see page 8-14. a q w 1. Locknut 2. Adjuster a.
No more than 20 mm (0.8 in) 4-4