What Size Jets?

[festus]

I am confused. I have a 1981 gs 650 gl. It has 4 into 1 ceramic headers on it. What size jets should be in it? Thamks

[Bribird]

Are you running the stock air box? If yes then you might be fine with the stock 110 jets, or maybe you could go up a couple sizes. If you are running pods with a dynojet III kit, you should have 155 or 160 DJ jets which are like 145 or 150 in regular stock type jets.

hope that helps

[festus]

When I bought it the po had cheap crappy pods on it but I am going to put the original airbox back in for now. Thanks So I might need to go to a 112 or something like that.

[Bribird]

if he had pods, and a 4 into 1...The bike would pretty much not run without messing with the jets. I would think you might wanna see if it has had a dynojet kit installed.. look and see if the slides have been drilled, and if there are air restictors in there, and verify the mains you have in it now.