Baja Motorsports DR150 Operator's Manual - Manuel (Page 16)

16 — English © 2010 Baja, Inc. All Rights Reserved.
THROTTLE GRIP ADJUSTMENT
Inadequate throttle grip free distance could cause the engine
speed to rise suddenly when you turn the handlebars. The
correct throttle grip free play distance is between 0.078 in.
(2 mm) and 0.24 in. (6 mm). If more or less movement is
present, adjust the throttle grip as follows:

Pull back the rubber boot to gain access to the adjustment
nut.
 Rotate the adjustment nut in or out to obtain the correct
play.
 Recheck the throttle grip free distance. Readjust if it is
still not within the correct limits.
WARNING:
Do not operate the dirt bike if the throttle grip free play dis-
tance is less than 0.078 in. (2 mm) or more than 0.24 in.
(6 mm). Operating the vehicle with an incorrect amount of
throttle grip free play could cause the rider to lose control,
resulting in serious personal injury.
IDLE SPEED ADJUSTMENT
Excessive engine wear can result when the idle speed is
incorrect. An idle speed that is too high could also cause the
dirt bike to lurch forward when you start the engine.
NOTE: You must have a tachometer to adjust the idle speed.
If you don't have one, have this service performed by an
authorized service center.
To adjust idle speed:

Start the engine and allow it to warm up.
 Turn the engine idle screw in or out until the engine idle
speed is between 1,350 and 1,650 r/min. on the tachom-
eter.
CAUTION:
Make sure the engine is fully warm before adjusting the
idle speed. Adjusting the idle speed before the engine is
warm could result in excessive engine wear.
MAINTENANCE
IDLE
SCREW
RUBBER
BOOT
ADJUSTMENT
NUT