engine acting wierd

[Blaaster]

I got a jet kit n put in a 290 main n it runs a lot better now. But a new question for you all, when I get into the high rpms it vibrates my frame so bad that its kinda hard to hold onto the handle bars, any ideas why and how to fix it or is it a normal thing?

If it was running well before you had a problem with it popping, and you fixed it by putting in a larger jet, you may be masking an air leak somewhere.

It would be a good idea to do a leak down test.

 

[Arnold]

If it was running well before you had a problem with it popping, and you fixed it by putting in a larger jet, you may be masking an air leak somewhere.

It would be a good idea to do a leak down test.

That is very possible cause now that I have replaced all the gaskets and put it back together the right way and torqued down every bolt, it doesn't have quite as much low end as it did before but i am going to try tuning the carb a bit before i consider changing the the jet out.

 

[Blaaster]

The only tuning you can do to the carby is to adjust the idle.

Adjusting idle has absolutly no relation to the main jet!

You need to leak test that sucker, before it bites you!