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Old 10-15-2011, 09:19 PM   #1
triumphant675r
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Crf150f carb help...

I have this 03 crf150f. When we got it the carb was missing a screw on the bottom. I replaced it today, pictured below. It's the shiny one.


56c944bf


I was told it was the idle screw but I'm pretty sure this is the idle adjuster, in the middle.

39fe72d3

The bike runs, but won't idle without the choke on. Anyone know what these screws are supposed to be set at? After messing with it I went inside for a bit and it spit a bunch of fuel out of the carbs overflow. After running it for a minute that stopped. I'm supposed to take my girl out to ride tomorrow, so any ideas would be greatly appreciated!
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Old 10-15-2011, 09:33 PM   #2
TheMagicMan
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Pics no worky. And you probably need to clean it better. You can also spray some carb cleaner around the intake to see if you have an air leak while running. The air/fuel should be at about 1 1/2 turns out from seated. That one is normally only a flathead and the idle screw is normally flat head and Phillips. Text me foo.
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Old 10-15-2011, 09:41 PM   #3
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I can see pics now! The one on the bottom is the air/fuel mix screw. The one of the side is the idle. Turn it all the way in then back it out 1 1/2 turns.
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Old 10-15-2011, 09:47 PM   #4
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I don't have your number! Lol. Ok I'll set the idle adjuster 1.5 out. Should the air/fuel screw be the same, or tightened all the way? I just pulled it out and apparently the spring and gasket decided to stay in. As long as the drew still operates is that ok?
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Old 10-15-2011, 11:16 PM   #5
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will only run with the choke on sounds like a clogged pilot jet
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Old 10-15-2011, 11:47 PM   #6
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will only run with the choke on sounds like a clogged pilot jet
Yup yup. Needs to be cleaned. And the idle screw is always diff there is not set number of turns. Probably be too high at 1 and half turns out. Keep the thumb on the kill switch. The one on the bottom of the carb should be 1 1/2 out.

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