8-7
ESU03701
Adjusting the engine idling speed
CAUTION:
@
●
Be sure to have a Yamaha dealer make this
adjustment.
●
Make sure that the throttle lever moves smoothly.
●
Make sure that the carburetor is synchronized
first.
@
1. Start the engine and warm it up.
NOTE:
@
Refer to the “Starting the engine” section.
@
2. Turn the throttle stop screw
1
in or out to adjust the
engine idle speed.
ESU01472
Adjusting the throttle cable
CAUTION:
@
Be sure to adjust the engine idle speed first.
@
1. Loosen the locknut.
2. Turn the adjuster in or out until the proper throttle
lever free play is achieved.
1
Locknut
2
Adjuster
3. Tighten the locknut.
ESU04870
Adjusting the carburetors
The carburetors are an important part of the engine and
its emission control system, which require very sophisti-
cated adjustment. Therefore, carburetor adjustments
should be left to a Yamaha dealer, who has the neces-
sary professional knowledge and experience.
Standard engine idle speed: 1,400
±
100 r/min
Throttle lever free play
a
:
2.0–3.0 mm (0.08–0.12 in)
U8GG10.book Page 7 Thursday, April 28, 2005 5:43 PM
Summary of Contents for RS90GTL
Page 1: ...OWNER S MANUAL SNOWMOBILE RS90NL ...
Page 2: ......
Page 11: ...1 4 ESU04280 YAMAHA EXTENDED SERVICE Y E S CW 06E ...
Page 14: ...2 3 8 RS90M RSG90 ...
Page 19: ...4 1 ESU00012 4 DESCRIPTION RS90N RS90NR RS90M RSG90 RS90R RS90GT ...
Page 104: ......