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bowhunter
Joined: 22 Jul 2006
Posts: 1
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 Posted: Sat Jul 22, 2006 12:42 am Post subject: 1988 Honda Fourtrax idle trouble |
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| Hello everyone, I am new to this forum. I've been on others with this same question and haven't had any luck. I own a 1988 Honda 300 Fourtrax. I've taking the carburator apart and cleaned it (did not change any parts - the old ones seemed fine). I cleaned out the gas tank and then I cranked that baby right up. It runs great without missfire and great throttle response. Here's my prob. At any givin time whether it has just been started or it is hot, the idle speed just gradually gets faster till it is idling really fast. If I hit the gas it still just idles fast. The only way to make it slow down is to shake the entire bike. As I shake the bike the idle speed decreases and if I keep on shaking it will die out. The throttle cable is let out as much as possible and not sticking. I have a Clymer repair manual and one thing is that it will only run with the choke in the on position (pushed left) and if I try to position it anywhere else it just kills on the spot (like turning the key off). Can someone at least give me a starting point? |
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vanhore9
Joined: 05 Sep 2006
Posts: 20
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| Posted: Tue Sep 12, 2006 2:18 pm Post subject: carb |
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| since you can stop the problem by shaking the atv. it has to be a moving part. that only leaves the valves and carb. i am thinking you float in your carb is getting jamed. easy to fix. just get a carb kit. they are about $25. you might be able to get one from e-bay. it will come with float valve and jets for you carb. |
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eddy822
Joined: 23 Sep 2006
Posts: 7
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| Posted: Sat Sep 23, 2006 8:50 am Post subject: |
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| HI, just came to sight myself. sounds like your low speed jet is pluged or dirty. you said it will run with choke on so must not be getting right amount of fuel on idle. like post before, clean or get carb kit. good luck! |
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stefan
Joined: 27 Feb 2007
Posts: 2
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| Posted: Tue Feb 27, 2007 1:24 pm Post subject: carb |
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Hi, i have the same quad (1988 honda fourtrax) and i just rebuilt the carburatour this christmas and it had the same problem that you described and all it was was the needle jet was dirty and the choke was open. thought id let you know
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jason33
Joined: 09 Mar 2007
Posts: 3
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| Posted: Sat Mar 10, 2007 5:32 pm Post subject: |
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floats?-
sounds like a air leak- but you said it stops when shaking it ?- check the petcock on the tank as well,new fuel filter -
pilot jet gummed up- mabe these will help |
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