90 cc 2stroke sportsman jet question

[RyansCat]

The stock airbox cracked on my daughters sportsman so I removed it and put a k&n directly on the carb. I know I need to rejet, but what size and kind of jet and where do I get them? Any thing else to adjust while I have the carb off? The 90cc 2 stroke is otherwise stock with stock muffler.

[dericsdad]

Yes, you will need to go larger with the main jet, probably somehwere around a 100. I think stock is something like a 85 or 90.

Also you may have to raise the needle jet a slot or 2.

Then warm it up and readjust the air screw.

[RyansCat]

Originally posted by dericsdad
Yes, you will need to go larger with the main jet, probably somehwere around a 100. I think stock is something like a 85 or 90.

Also you may have to raise the needle jet a slot or 2.

Then warm it up and readjust the air screw.


Got any idea where to get the correct kind of jet? thanks alot

[RyansCat]

Anybody know where to get the right jets? I went to 4 local motorcycle shops and they were all the wrong kind. The base (threads) of my stock jet was bigger than anything they had. Thanks