Ski-Doo Formula PLUS - Engine Backfire and Speed Issues

SYMPTOMS POSSIBLE CAUSES
WHAT TO DO
Engine backfire 1. Faulty spark plug See item 5 of "Engine turns over
but
fails to start."
2.
Water in fuel
Drain fuel system
and refill with
clean fuel.
3. Engine is running
too hot See item 6 of "Engine lacks ac-
celeration or power."
4.
Ignition timing is incorrect or Contact your authorized dealer.
there is an
ignition system
failure
Snowmobile cannot
1.
Drive belt Check item 4 of "Engine lacks
reach
full speed acceleration or power."
2. Incorrect
track adjustment See maintenance section for proper
alignment and tension settings.
3.
Pulleys misaligned
Contact your authorized dealer.
4. Engine See items 1, 2, 3 & 6 of "Engine
lacks acceleration
or power."
49