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2002 Yz250f hard to start


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Hello, I recently bought a 2002 Yz250f non running. It came with two carbs 1 is a 2002 carb (the original one) and 2 is a 2007 carb. The guy had the 02 carb off and cleaned it with brake cleaner and then got the 07 carb for the bike. With the 07 carb on it, it sat for 5 years. When I got it I took the 07 carb off and cleaned and put it back on. It started for a while but the header turned red hot in about a minute. I found out that this means it’s running lean. So I turned the fuel screw out 3/4 of a turn and it started up again and ran better and didn’t turn red hot. I let it warm up for a few minutes and I stalled it when I went to ride it. When I tried to start it again it wouldn’t start. I made sure the fuel was on. It just won’t start. Any help is appreciated! Thanks 

Edited by A A Ron
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