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2005 cfr150 wont idel unless the choke is on

What is the float adjustment for the crf150f

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The float is unlikely to be the problem, unless you've been playing around with it?
It sounds like the carbie may have a blocked idle jet, causing the engine to get too much air at idle. (Hence why when you put the choke on, cutting off the air, it idles better) Or the mixture screw in the bottom (Accessable from the front of the bowl) has been screwed all the way in?
I'd take the carbie apart, remove all the jets and clean them with a thin piece of wire and blow them out with compressed air. Re-install them and make sure you turn the mixture screw at least 1.5 turns out from home before starting it.

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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SOURCE: how to time a crf150f

1.make sure your piston is at (top dead center)TDC
2.on the left hand side cover there is a cover that is a little bigger than toonie remove it and there will be two dots line them up and you will be at TDC.
3. there is two dots on your cam gear line one up flush with the top of the head and the other dot vertical (up) and repeat.
4. when the chain is on check all the dots make sure they all match up and u are done.

Posted on Mar 03, 2010

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This question is for my 2005 Honda CRF150F.My bike when rididng in the mountians and down here in town seems to have a problem. When I throttle up to go faster the bike sputters and sounds like it is...


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10. Idle port, transfer ports, slow air jet clogged.
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