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View Full Version : 400EX Stock Needle ?



dudemc
02-19-2010, 01:39 PM
I was trying to tune my carb after putting a HMF slip-on, K&N Filter, and a Dyna CDI box and had a lil sputter with just holding the throttle at about 1/8 or less maybe. I put the jet in that HMF sent with the pipe it was a 152 I went ahead and bought some other jets and put a 160 in it and turned the F/A out 2 turns and it still sputters. I was going to try and move the needle but there is only one spot for the C-Clip to go no extra spots for adjustment. It's the stock needle. Is that only on 2005 models or what. I seen other people on here say that they adjusted their needles. Need some help please.

honda400ex2003
02-19-2010, 05:49 PM
the 05 and up carbs only have 1 notch in them. you will either have to get one from a older carb or get a kit with one in it. I think there are probably some guys on here with them that they may want to get rid of. steve