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jetting question


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I am in the middle of rebuilding my banshee. Im adding some things while I reassemble it. I need to know what jetting to start off with. My mods are: DMC Alien exhaust, K&N filter with ProFlo adaptor, airbox lid removed, weisco pro-lite pistons .020 over, TORS removed, stock carbs, elevation 200 feet. I was thinking starting with 320 mains and 27.5 pilots. Does this sound about right or what?? THX :cheers:

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Ok now I have stock pilots with 310 mains (didnt have 300s). Whenever I first start it up it bogs alot right at first, and idles real low. When it warms up it idles better, but still just a little low. Also when its warmed up it dosent bog as bad, but it still bogs some at low speed. I can be just creeping along in first gear and hit the throttle and it kinda hesitates for a second then its off and pulls great on up from there. When its just sitting still it seems to rev fine, it dosent bog hardly at all. I have tried adjusting the air screws and im at 2 turns out. What should I do to to eliminate this? I have cleaned the carbs and I have checked numerous times to make sure they are in sync. Should I up the idle or would this not do anything? What should I try next?? THX :clap:

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Ok I turned the airscrews to 1.5 turns out and adjusted the carbs as best I could. The bog is still there but it is not that noticable. When I first start it, it idles great. Whenever it warms up, it idles a little low. Why does it do this?

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Ok I turned the airscrews to 1.5 turns out and adjusted the carbs as best I could.  The bog is still there but it is not that noticable.  When I first start it, it idles great.  Whenever it warms up, it idles a little low.  Why does it do this?

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If it's bogging in the mid I would drop the pin a notch and see if it cleans up. Put your airscrews at 1.5 to 2 turns out and see how it does.

 

Is it really bogging or is it breaking up? In my experience bogging is really rich and breaking up is just pretty rich. Either way I would drop the needlie a notch and see what happens, if it gets worse you know your lean, if it gets better you were rich in the mid.

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Its really more of just a hesitation right off idle. I warmed it up and put new plugs in it and let it idle for 10 minutes then pulled the plugs. The plugs were a very light brown color and they were wet. This was at 1.5 turns out on the airscrews with stock pilots.

 

Also, it smokes a pretty good bit, not alot but some...

Edited by gravity2oo4
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