8-16
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touching exhaust components.
EBU23971
Changing the carburetor settings
In extremely cold weather, it is necessary to
change the carburetor settings to maintain opti-
mum engine performance and to prevent engine
damage.
WARNING
EWB02000
●
Improperly servicing or adjusting the carbu-
retor could cause it to malfunction with the
possibility of an accident, or the carburetor
could leak fuel, which would be a fire hazard.
●
Carburetor adjustments should only be per-
formed by a Yamaha dealer. Do not attempt
to perform these procedures unless you
have mechanical knowledge and the neces-
sary tools.
●
Do not perform this procedure while the en-
gine is hot. Place a rag under the carburetor
to catch any fuel. Wipe up any spilled fuel
completely.
●
After servicing the carburetor, always check
the throttle lever operation before operating
the ATV to make sure it is working correctly.
Standard settings
Main jet #230
Jet needle clip position 2nd groove
Pilot air screw 1 1/2 turns out
1. Main jet number
1
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