Carburetor Adjustment; Idle Speed Adjustment - Yamaha Royal Star XVZ1300A Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
1. Reservoir tank cap
NOTE:
@
If water is added, have a Yamaha
dealer check the antifreeze con-
tent of the coolant as soon as pos-
6
sible.
Have a Yamaha dealer change
the coolant every two years.
The radiator fan operation is com-
pletely automatic. It is switched on
or off according to the coolant tem-
perature in the radiator.
@

Carburetor adjustment

The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Most adjustments
should be left to a Yamaha dealer who
has the professional knowledge and
experience to do so. However, the idle
speed may be adjusted by the owner
as part of routine maintenance.
CAUTION:
@
The carburetors were set at the
Yamaha factory after many tests. If
they are changed, poor engine per-
formance and damage may result.
@
6-11
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Idle speed adjustment

NOTE:
@
A diagnostic tachometer must be used
for this procedure.
@
1. Attach the tachometer. Start the
engine and warm it up for a few
minutes at approximately 1,000 to
2,000 r/min. Occasionally rev the
engine to 4,000 to 5,000 r/min.
EC000095
The engine is warm when it quick-
ly responds to the throttle.
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