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2007 RMZ250 Wont idle

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I recently picked up a 2007 rmz250. The bike will run at 1/8th throttle but will die as soon as you let off the gas. Choke wont stay on and it backfires a little. 

 

I took all the slack out of the throttle cable and even turned the idle screw to the max and it still wont idle. 

 

I messed with the fuel screw on the bottom a little and it seemed to help it run smoother (about 2 turns out) but still I can't get it to idle without holding down the throttle. 

 

I also cleaned the carb and made sure the jets weren't clogged. While reassembling the carb,  I overtightened the decompression screw on the carb and it broke off inside. It took some time to get out but its out now and have a part coming in the mail. 

 

This bikes really starting to seem like a bad idea 

 

 

Someone please help me

RMZ250 07.jpg

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Put slack back in the throttle cables.

Buy a new choke knob.

Ensue all carb passsage ways are clean.

Buy a brand new pilot jet.

Fine adjust the fuel screw when the engine is hot.

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