NINETOE

My exhaust rusted away and I was able to find a psi after market for $25. Here in MN im riding in 900 to 1100 ft of elevation and mostly trail riding. So the ? is will I need to make any adjustments to carbs or clutchs ?

Thanks

kccats

You will likely have to rejet! Start off going atleast a coupla main jet sizes up and also raise the needle(lower the clip)!

yamadad4

start by upping the mains 2 sizes. no needles to adjust on the butterfly carbs, i always upped the pilot.

you will know if you need to make any clutching alterations if you watch your rpms. depending on if you have the 8VO or the 89F weights, there are a few adjustments.

NINETOE

OK , well thanks for the info. Much appreciated !