Question about 2005 Honda CRF 100 F

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Carb Issues.. I have a 2007 Honda CRF100 and when I give it higher RPMs in nutral the bike stops...I know its dirt in the carburetor but I dont know how to take it off. So if you can tell me how that would be great.

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Please visit this site and check it out on 'other motorcycles' or maybe you can go through the carburator cleaning topic and get the idea on how to go about it.
good luck.

Posted on Apr 18, 2009


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My 89 yz 80 will start and sounds good, but when I pop it into 1st it goes a little bit then stops. So my question is why does my yz 80 start and not go?

Hi Brendan,
The YZ 80 (as you probly know) is a 2 stroke dirt bike which has a Mikuni carburetor (Yamaha part # 1LR-14101-00-00 )
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So there are are a few things to consider when troubleshooting this symptom.
Lets assume your bike is in descent working order. That is to say, your bike has good top end compression, and the power train (from the engine to the rear wheel) is working properly, the chain is properly lubed, wheels and bearings are aligned and free wheeling, the clutch is operable etc..
Anything that could cause unnecessary resistance to the engine and overload it when you release the clutch in 1st gear should be addressed first.
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Hope this helps. Good luck and let me know how it goes! :)


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Hi, Anonymous and the usual suspects are:
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2. Fuel filter clogged.
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5. Float needle and seat sticking.
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7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
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12. Faulty fuel pump.
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My honda crf100 will not start i have change the spark plug and air filter the only way it will run is if I spray starter fluid into the carb and keep sraying it into the carb otherwise is just shuts down

it the bike has been sitting for a long period of time. the carb. can gum up. pull the carb. off. clean it up really good. insuring you get all the small ports clean. then try it again.
every dirt bike i've had requires a oil wetted air filter. dont forget about that.

Feb 23, 2009 | 2005 Honda CRF 100 F

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