I am looking for recomendations on rejetting a carb after sreamin eagle kit is installed. It seems to be a little lean now. What are the stock jets and can I replace the idle jet only? I have some popping through the carb now. Any past experiences to share? thanks

 

Check out ****** topic on Carb rejet instruction w/pic's

 

I had the SEII AC and swithced to the NESS BS but the jetting for me was about the same. I'm running45 pilot jet, 180 main and 2-2.5 turns out on mixture with dynojet needle set at 4th clip/ no shimsand running a stock spring. The pilot makes the most differnce in smooth idle and slow speed around town (pilot also referred to as slow jet) and reduces/eliminates that popping.
The stock setup is typically 42 slowjet, and 175-180 main.

 

Your stock jets are likely a #42 Low and #170 or #175 Main. Probably the most common rejet size I see is a #45 Low and #180 Main but that may or may not be the optimum sizes for you based on your particular bike and elevation. Yes, you can just change the Low jet as long as you arn't running to lean at high speed cruise.

 

Thanks for the input...I appreciate it....jim

 

This all depends on where you live. What elevation, what the atmosphere is like etc. So don't always go by what every else says always works. Not saying it won't work -- just consider where you are riding.

The bikes are lean out of the factory. And especially more so with the increased air from the SE kit.

Roughly speaking:
The idle jet controls idle or little bit of throttle
The needle controls your mid throttle
The main jet is for when you are wide open.

So, sometime you may be able to get away with just a larger idle jet and shimming the needle. Most people do not do the needle and I suppose just up both jets to compromise.

I had mine put on a dyno the first time to make sure the carb was tuned into a nice tight baseline. For mine, all I had to do was what I just described: put a larger idel jet in and put two shims on the needle. The main jet was perfect. In fact it would have run rich if I put it up to 180.

anyways....good luck with it. I am sure you can get it close by simply upping the two jets. If you want it really tuned in, nothing beats a dyno to set your baseline.

Mine runs great now from 20 degrees to 100+ degree weather -- plugs look good, no popping, backfire etc. I've never had to touch the mixture screw -- yet. Although I feel at real long rides in the 20s I might open her up just a bit when it is that cold. But so far, so good.