Do I have to re-jet again???

[Giz400ex]

Quick question people!!! I have 400ex with an LRD pipe and a k&n filter on it when I did this I had to re-jet!!! Now, I just recently bored it out .020 over with a bigger cam. Now do I have to re-jet again????

[400exJOE]

yeah. I would lower the needle clip one, and increase your main jet by 2 or 5. By the way, have you found any new good riding areas around the capital region? I am looking for some new places to ride.

[Giz400ex]

New????? Nope.............same track, same trails!!!

[Tommy 17]

.020 over would that be a 403??? the lowest i heard was .040 and that a 406

[Giz400ex]

I could be mistaken but I thought .020 over was the first overbore. But, you could be right, it could .040 over!!! Mine is suppose to be a 406.