thanks i'll try that. but if i can get to that bolt with out taking off the airbox and stuff will that work.

 

yes

 

which jet should I use, 2 came in the same bag. the bag says main, jet Lg round #147.5 what ever that means. When you look at them closely there is one that is 140 and the other is 147.5. which should I use and should i ever switch them.( like in the summer)

 

i think that they send them specific to your region If they dont they should but since it is winter i would go with the 147.5 and see how it runs do the plug test and see if your to rich/lean and go from there you
may want to start a specific thread about people who are about the same elevation and temp as you and see what they are running i dont want to steer you wrong im more of a 2 stroke guy but it seams that the larger jet would work...

 

how do you get the old jet off. I screw driver doesn't work and no socket will fit it.

 

well my friends was a flat blade screwdriver what does the new one look like? also there may be a washer under the jet so watch for that. the jetting has to be really close on those constant velocity carbs for a good throttle response so don't get disscouraged if it don't work good the first time. a 137.5 worked good on my friends quad at 3500' elevation.
hope this helps

Jeff

 

forget about the 137.5 jet that was with a hsp pipe I did not see you had a wb sorry.

Jeff