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    larryc251978's Avatar
    larryc251978 Posts: 1, Reputation: 1
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    #1

    Jun 15, 2010, 10:59 AM
    I have a honda trx 125 it sparks but very weak how can I fix I used a new plug
    My honda trx 125 have weak spark I got a new plug but spark is still weak where should I go from here
    darthsinister's Avatar
    darthsinister Posts: 25, Reputation: 1
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    #2

    Jun 15, 2010, 10:53 PM

    Sounds like a bad coil.
    sdhamblin's Avatar
    sdhamblin Posts: 1, Reputation: 1
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    #3

    Jun 30, 2010, 01:12 PM
    I've got a TRX125 that I thought had lost it's spark (wouldn't run, and couldn't see the spark when the plug was grounded on the engine block). Then I looked for spark at night, and saw that it was there after all, although still weak. So I tried starting fluid, and it would run on starter fluid. So I cleaned out the carb and now it runs fine. All jets were clean, but there was a little bowl on the carb that the fuel goes through before it goes through the needle valve, and that bowl was full of congealed/nasty fuel.
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