Question about 1982 Honda CX 500 B

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I have a 1984 500CX that sat all winter and the gas got real stale- smelled bad; so I drained it and put in fresh gas. It started right up but when I went for a test ride it has almost no power and can hardly get it up to speed to get into second. If I do put it into second gear it almost stalls out from lack of power. Do I have water in the gas?

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  • Joseph Yoder Jun 27, 2009

    Thanks, would I get a similar result if I use a carb cleaner that you add to the gas?

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No, most likely you have a blocked jet. If you have the expertise, strip the carbs and clean them out, if not, taking the carbs off and sending them to a carb rebuild company is less than $100 each, plus they will renew all the old parts (seals, jets, etc.) and your bike will run like new!

Posted on Jun 27, 2009

  • Z Laws Jun 27, 2009

    Most likely not - carb cleaner like red-ex that you put in the gas is for 'keeping' you carb clean - it doesn't usually do a good job of cleaning out blockages. But you can buy carb cleaner in a spray can that will! It is made up of trichlorethane which you should also be able to buy in liquid form for soaking.


    I would spray your carb heavily, then strip your carb of all its jets and soak them overnight. If you have access to a high pressure air source, that will dislodge mst crud once you have finished soaking - but I would definitely buy a rebuild kit as your seals and gaskets have likely gone hard with such a long period of no use.

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