my dirt bike only runs with the choke on it wont idle at all. it sometimes dies when i open the throttle. fix?

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my dirt bike only runs with the choke on it wont idle at all. it sometimes dies when i open the throttle. fix?

4 stroke Yamaha 125

2007-08-12 14:36:32 · 3 answers · asked by dave 1 in Cars & Transportation ➔ Maintenance & Repairs

3 answers

dirty carbs and filters

2007-08-12 14:42:59 · answer #1 · answered by theevilfez 4 · 0⤊ 0⤋

when a motor only runs on choke, it means it ain't getting enough gas. Could be plugged fuel line, filter, petcock clogged, jets in the carb clogged, It's a fuel problem for sure

2007-08-12 22:13:43 · answer #2 · answered by w00189wr 4 · 0⤊ 0⤋

check the boot inbetween the carb and the head, sounds like an air leak, also check the mounting gaskets and make sure the c clamp on the carb is tight

2007-08-12 21:46:38 · answer #3 · answered by Christian 7 · 1⤊ 0⤋