cutting out in fourth

[Purcell450r]

I think I know what the problem is, jetting. But, I have no idea where to start with it. It is bored .020 over, uni air filter and a cobra exhaust. I rebuilt the carb with stock jets, but they are probably too small. If anyone has a suggestion, I would appreciate it.

-Josh

[headache]

the stock main jet is a 230. Put in a 250 and see if it makes it better. if not you may have some trash in the carb. how does it run in 5th and 6th gear?

[Purcell450r]

not able to get it that high, ill try putting in a bigger jet. Thanks