Section 04 ENGINE
Subsection 08 (CARBURETOR)
MMR2000_123_04_08A.FM 04-08-7
1. Spacer
2. Air cleaner elbow ass‘y
CARBURETOR ADJUSTMENTS
Preliminary Idle Speed Adjustment
21, Pilot Screw
Start engine and allow it to warm.
Adjust idle speed by turning pilot screw no. 21
clockwise or counterclockwise until highest idle
RPM is attained.
Idle Speed Final Adjustment
15, Throttle Stop Screw
After the pilot screw is correctly adjusted, turn
throttle stop screw no. 15 to obtain the standard
idle speed.
GOVERNOR ADJUSTMENT
Loosen governor arm nut.
Turn governor arm clockwise until carburetor
throttle is fully opened. Hold governor arm in this
position.
Using pliers, turn governor arm shaft clockwise
until it stops.
At this point tighten governor arm nut. See the next
photo.
1. Governor arm nut
2. Turn governor arm to fully open throttle
3. Turn governor arm shaft
Lift rear of snowmobile.
Start engine and allow to warm up to normal tem-
perature.
Activate throttle lever so that engine revs to max-
imum standard speed.
Adjust throttle lever stop screw so that engine will
not rev over maximum standard speed. Refer to
TECHNICAL DATA 10-02.
1. Adjust throttle lever stop screw
STANDARD
IDLE SPEED
1400 ± 200 RPM
A31C11A
12
A31C12A
31
2
1
A31C13A
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