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Posted (edited)

so once again i am posting about jetting. the bike was set at two turns out 25 pilots 310 mains. needle on second from blunt end. decent top end no bottom end at all until you hit powerband. just choppy and boggy. so i threw 300's in it 25 pilot. needle on the second from pointed end. at 1 1/4 turns out it runs a little better. still a little choppy. not smooth at all. im around 1000 ft or so maybe a little less. any ideas? oh i forgot. as far as i klnow the only mods are the fmf fatty pipes and silencers. it has the k and n filter with the snorkle removed and holes drilled in the lid.

Edited by geoffisacnt
Posted

Do a plug chop and see what color it is. I think I ran 280's with stock carbs and the same mods but with a 27.5 pilot.

How does it start?

 

starts great first kick. i just pulled the plug and it is a slightly dark brown color from top to bottom. so im under the assumption its a little on the rich side. after riding a bit it seems like my problem spot is now right before power band. which is leading me to believe that i need to raise my clips back to the middle on my needles. i may be wrong though

Posted

Forgot to say my needle is in the middle position and about 1500 fts elevation.

that is my mistake. i changed the main, and the needle at the same time. i shouldnt have messed with the neelde. so i will move it back to middle. and see if that helps. if i still have the hesitation i may go down to a 290. cause my plugs went from an almost black to a medium brown and the quad is running better so at least im goingint he right direction

Posted

Never change two things at once otherwise you will chase the same problem all day long.

 

yea trust me im kicking myself in the ass for it i was just in a rush and frustrated. im gonna move the needle clip back and go from there.

Posted

Fattys like big pilots,if i were you i would slam a 270-280 main in it,put the air screw at 1 turn out put the needle all the way rich that should clear you up,if you still have trouble bump the pilot up,dont get discouraged some bike take more tweeking than others and when you find that sweet spot its worth all the trouble

Posted

Well I came out today and decided to take the airbox lid off and give it a ride....presto. runs tip top next to no hesitation at all. So as of right now I have a 25 pilot. 300 main. Needle on second from pointed end. And the air fuel screw turned about 1 1/4 out. No airbox lid

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