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1/4-3/4 Throttle Sputter


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Recently fixed a half done by previous owner TORS delete on my banshee now I'm trying to dial in the carbs. I have great idle to 1/4 throttle and 3/4 to WOT but 1/4 to 3/4 it sputters and loads up a lot. My take on it is that it's too rich, so what do I need to adjust to clear up that sputter.

 

Stock carbs with TORS delete, stock engine, 320 main jet, stock pilot jet, k&n pod filters, fmf fatty pipes. I'm at 400' above sea level, and it's in the 30s.

Edited by TroyBrock
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Get 27.5 and 30 start with the 30 air screw all the way in. Work it out 1/4 at a time to see if you can get a responsive throttle. Give about 15 to 20 seconds to determine if it helped or not. After 2.5 out and you can't get it right go to the 27.5 air screws all the way back in, same process. I bring the screws all the way in so I get full use of the jet and can get it almost perfect. Leave the needle for now. Once you get the pilot set and if it's still bogging in the mid you can do that. But for now, one change at a time.

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I turned the air screw all the way in on the 25 and got rid of some of the sputter but I also put in new plugs to check, definitely in a really really lean condition so I ordered a set of 30s for it. Hopefully this doesn't make it too rich. Luckily it's cold here so I doubt I did any damage to the pistons with the small amount of riding I did on it. Water temperature never got over 140

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