need help with jetting

[yfzracer#86]

hey whats up guys, glad to be back and hopfully you will be able to help me jet my banshee.

A week or so ago i ported my cylenders by sharpening up my intake port and polishing my exaust. After putting it back together i soon relized that it was wayyy to rich. i had a 360 main jet and im at a 330 main with my needle 1 click from the top. it runs fairly good but it has horable low end and a lean fealing top. after blowing a nice about of smoke i rode through it and it smelt like it was sweet and burnt smell. im running belray HIR sythetic oil, vitos superstock pistons, pro curciut pipes, v force reeds and cage, open foam intake(pro disighn), self port and polish, 330 mains, 30 piliots, needle one click from top, and floats need to adjusted a little bit(would this affect jetting???) i just did a wide open throttle test and the top of the plug the thing that curves over and arcs too, is a nice bright brown, and the thing under that is a red brownish color.

i live at sea levle and i dont know what other info you might need, sorry about the spelling too.

I would like to be riding her by this afternoon if i can get a quick enuff respose?

 

thanks for reading,

- kevin( used to be 2003bansheerider350)

Edited December 17, 2004 by yfzracer#86

[ridingorhiding]

340-350 main airscrew 2-half turns out neddle 3rd or 4th notch from the top good place to start

[yfzracer#86]

340-350 main airscrew 2-half turns out neddle 3rd or 4th notch from the top good place to start

294427[/snapback]

 

forgot to say that i started at a 360 and tried a 340 and moved the needle and it didnt run and then i tried a 330 and it did good and i F'ed up. im at a 330 right now****** but ill try moving my airscrew.

if the needle it 1 click from the top, does that mean its richer or leaner from the bottom setting??

[BenBB]

Moving the clip towards the top or blunt end of the needle is leaner.

 

Not sure if it'll help but if it was mine, all you did was the port cleanup and it ran good before with the 360's...I'd go back to 360 mains and start with the needle at the stock (middle) clip position, and try adjusting it from there to see if it'll clean up. You also might start with the airscres 1.5 turns out and try to dial those in first. It just sounds from your description like the 330's are too lean, that needle and airscrew adjustment (maaaaybe smaller pilots but I doubt it) is all you really need. Good luck.

[yfzracer#86]

just got back in from riding it and i think i got it. the 330's are still in there but i think im gana try a 340 just to be sure. i adjusted the needle to the leinest point and it def cleaned up. and i have the air screw 1 turn out. im thinking about trying a 27.5 piliot, but first i have to get one.

[BALLSDEEPRACING]

I may be wrong but if you want to lean it out a little more turn the air screw out, that should help with some of your low end bog.

[J.J.]

after blowing a nice about of smoke i rode through it and it smelt like it was sweet and burnt smell....  and the thing under that is a red brownish color....

 

Just a thought, but it sounds to me like you are burning coolant...