2004 Viper Mountain Jetting Question

[toolman11k]

Cleaning the carbs on a 2004 Viper Mountain, and it has 156.3 Jets across the board.

I assume on a viper like a SRX, the mag jet should be bigger?

Does anyone know what the stock jets are supposed to be, I live in MN and do not ride high altitude.

I think the altitude around here is roughly 950'

Thanks

 

[bolin22]

nope

the book calls for 156.3 and 45 pilots jn 3.0 and 1 7/8 ps for 300-1700 feet.



142.5 with 5o pilots is what i used to run at sea level....you are incorrect in that the viper doesnt run staggered jetting because the head has staggered compression.

 

[toolman11k]

Thanks,

Did the bigger pilots help any starting / idle issues you had with 45 pilots and bigger mains?

What was the reason you switched from stock?