Carburetor; Checking The Engine Idling Speed; Checking The Throttle Cable Free Play - Yamaha Star XV250X Owner's Manual

Carburetor

The carburetor is an important part of
the engine and its emission control sys-
tem, which requires very sophisticated
adjustment. Therefore, carburetor ad-
justments should be left to Yamaha
dealer, who has the necessary profes-
sional knowledge and experience.
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU21251
Checking the engine idling
speed
The engine idling speed must be
checked as follows and, if necessary,
adjusted by a Yamaha dealer at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
Start the engine and warm it up for sev-
eral minutes at 1000–2000 r/min while
occasionally revving it to 4000–5000
r/min.
NOTE:
The engine is warm when it quickly re-
sponds to the throttle.
Engine idling speed:
1350–1450 r/min
EAU21311
Checking the throttle cable
free play
1. Throttle cable free play
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
6-15
EAU21382
6