Michwolv,

Heres my .02, how I finally learned how to tune .

1. Look to see what jets are in your new carb. Main and pilot.
2. Go to your local bile shop and buy at least 2 up and 2 down, main and pilot. If you can go 4 up and 4 down. I think I have every Keihn main jet availible and use them throught the season.
3.Get 3 or 4 B8ES spark plugs.
4.Drain tank and fill with fresh fuel (mix another topic)
5.Run it hard till hot.
6.Do a plug chop. Important to do this right!
7.Pull the plug and check color - First time out use the plug thats in it now.
8.If your plug is chalky white go fatter with your main jet. If its wet and black go skinnier.You want to see a cardboarrd
brown color on your plug.
9.Do not try to go out with a group of people when you are trying to figure out jetting. They will only tell you that you should have gotten a 4-stroke!
Humidity and temp will really affect jetting. Once you get you got it. Just ask, somone will piont you in the right direction.

Good Luck,
Freak

 

hey man, thanks alot, one more question, right now i run b7es, should i go colder and run 8? or stay with 7?

 

also, no one has awnsered this question, and now this thread seems to be getting alot of attention. so what kind of reeds should i buy that will fit my stock cage?

 

Whats wrong with the reeds you have now?

replace them only if they dont seal tight to the cage, or if they are all chipped up.

 

so aftermarket reeds wouldn't help me with performance at all?

 

They would help a little but if the reeds you have now arent broke i wouldnt replace them.

 

thanks for all the help guys, i will let you guys know how the carb works out.

 

If you just replace your reeds in your stock reed cage you will not notice a diffrence. If you get good carbon fiber reeds they will last longer. Also the B7ES is a hotter plug than needed. Go with the B8ES. You will also have better plug readings with the 8.

 

Now I question why the B7ES is in your motor. If I'm not mistaken the book calls for a B9ES, or B8ES if a hotter plug is necessary. I've always run an 8 in all my toys, less prone to foul, but a 7? Whats up with that?

 

clymer i believe says 8 or if hotter go 7, however, like u guys noticed, i don't know how to rejet, so my stock carb was fouling 8's, so i ran 7 and it was running fine. Thanks tho guys,