No you only rejet carb if its needed. Like high alt. Like Denver CO. Or your looking for more power or you add a race exhaust. And they will suggest the jet.
Go to www.650ccnd.com you'll find a rejet and adjustment there.
You do not have to rejet when using Slip-On pipes. I have an 1100 and an 650 for my wife and we have had Slip-On Cobra Pipes for a few years now.
Rejet Hoard is 5' 8".
Just saw off the muffler, rejet, and run an open pipe. You'll be the parking lot donut king!
The population of Rejet-de-Beaulieu is 240.
Rejet the carburetor to accomodate "thinner" air; this is usually done by installing a smaller primary jet.
The area of Rejet-de-Beaulieu is 6,350,000.0 square meters.
in most cases yes, you will have to rejet your carb
depending on models as they vary camshaft timing figures and exhausts but i have measured my 2008 wr250f on two dynos and it pulled 36rwhp on both with gytr exhaust tip and rejet....stock was 34
un rejet - rejeter
we saw it as unfair and unjust to the German people.
Make sure you have a new (right kind) of spark plug. Next I would say you may have to rejet your carb. But it could also be your air filter or reeds(if a 2 stroke). If plug, reeds (if a 2 stroke) and air filter are all good, I'd guess a rich main jet.