HIGH ALTITUDE TUNING
To attain the best performance in high altitude conditions, carefully tune the snowmobile as outlined below.
▼
Test the main jet
(performance & plug color)
OK
▼
Test the low speed setting
Not OK
▼
Try high altitude settings
Not OK
▼
Decide if the problem is with the
pilot jet and adjust accordingly
Not OK
HIGH ALTITUDE TUNING
Not OK
OK
OK
OK
Not OK
2-59
Check STD settings
•
Carburetors
•
Spark plugs
▼
Adjust the main jet size according to the
chart
Adjust the size of the main jet
▼
Re-test
OK
Not OK
Check to see if the gearing is too high or low
OK
▼
Check the engagement speed
and shift performance
Not OK
▼
Adjust the primary clutch as re-
quired
Not OK
▼
Adjust the secondary clutch as required
INSP
ADJ
High altitude
OK
tuning OK
OK
OK