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· Registered
1 Posts
Discussion Starter · #1 ·
Hi I’m dylan and I just came across a 2001 400ex with a few problems. Here’s what I need help with the bike starts right up no problem but won’t idle. I get it going and I get into about 2nd gear and as soon as I let off the gas it goes to sputtering then it dies out. But cramps up right after could someone please help!!!! Thanks

· Premium Member
4,390 Posts
Got a couple possibilities.
1st. Idle screw set to low.
2nd. Pilot jet clogged
3rd. Mixture screw clogged or set wrong

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