I get a lot of questions about jetting. In the past I've given some simplified info on how a carburetor works and what circuit affects a given TO. Here's a visual aid to same that may help some riders DIY. No AP circuit is addressed here as all that does is cover the hole one makes by whacking open the throttle on a 4-stroke bike and same has no affect on constant circuit metering at a given TO. This visual aid can help one with an issue they may be having at a given TO. It is not for diagnosing a "problem". (i.e.: mech issues, cloggage etc. You cannot jet around same and those must be corrected first.) Also- "rule of thumb" to a certain degree: Bog/stumble- lean Gurgle/blubber- rich A: AS and PJ B: Nozzle C: Needle D: Cutaway E: MJ
