Carburetor; Checking The Engine Idling; Speed - Yamaha XT250 Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
3. Insert the tailpipe into the muffler,
and then install and tighten the
screw.
NOTE:
1
Make sure to align the screw hole when
inserting the tailpipe.
2
3
4
5
6
7
8
9

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.
6-18
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:
1300–1500 r/min
EAU21311