need help jetting

Ratpack

Expert
Joined
Oct 11, 2006
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Location
Frewsburg NY
Country
USA
Snowmobile
2003 RX1
Here is what I have.
03 RX1 with a stage 1 s/c.
mains are 135,pilots 17.5,screws at 2.25,needles are in the middle.
My idle is in the low 13's,from there to 6000 rpm's it is in the middle 12's.
From 6000 up to 3/4 throttle my a/f goes to 14 to the low 15's and at wot the numbers are back to the mid 12's.
My elevation is around 1500'.
 
sounds pretty good, the WOT number is the most critical, you're in good shape there. the lean spot in the middle might respond to lowering the clips (raising the needles) - worth a try

Good luck :flag:
 
yeah, sounds pretty darn close, drop the needle clips down one should put you right where you want to be as high 13/14 area under lower throttle high rpm. not a lot of load, so its not gonna really hurt your motor, you want that area to be crisp and clean, your setup is just a little to lean. Not far from perfect thought.
 
I may go back to that set up.I put 135 mains in and now i'm a little fat.My gas miiage sucked.
 
yeah I know but about 80 miles to a tank kinda sucks.
 


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