2002-2006 Yamaha SX Viper 700 Series Snowmobile Service Manual, Page 322Get this manual

2002-2006 Yamaha SX Viper 700 Series Snowmobile Service Manual, Page 322

HIGH ALTITUDE TUNING INSP ADJ HIGH ALTITUDE TUNING To attain the best performance in high altitude conditions, carefully
chart Test the main jet (performanceplug color) OK Adjust the size of the main jet Re-test OK Not OK Test the low speed setting
Not OK OK Check to see if the gearing is too high or low OK Try high altitude settings Not OK OK Decide if the problem is