Am I using a good jet number for my exhaust?

[Blast_Her_Man.]

Here is the setup:

FMF Fatty Gold series pipe with FMF PowerCore exhaust
K&N air filter
260 jet

Is the correct jet being used? This is how the bike came when bought.

 

[wolf424242]

Does it sound and run correctly? I've never used jets that small, but it doesn't seem wrong.

 

[slickerthanyou]

Do the plug chop and report back. Should be dark brownish.

 

[Awk08]

that sounds too small to me, i've seen guys listing 270 - 280 with that pipe and an airfilter

read more here........................

http://www.blasterforum.com/off-topic-7/jetting-numbers-solution-17259/?highlight=jets+running

 

[02yamaturd]

thats sounds pretty close, i was runnin a 270 with open airbox w/uni, boyesen reeds and bills pipe...mine was just a tad lean so somehwere between 260 and 280 would probly be good for you...elevation has to do with jetting also...im at about 800ft above sea level...