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Thread: UPDATE PICS ADDED Picked up a 85 125m

  1. #1
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    UPDATE PICS ADDED Picked up a 85 125m

    Picked up a 125m at a swap meet for $200. Its got pretty much brand new trail pros on it. I got it home today, fixed the pull start, cleaned the carb, changed the oil, fresh plug, fresh gas with sea foam. But I realized there was no key. Guy said it ran. So I pulled it once, and it fired right up.

    Runs good, all high and low gears work. Smokes like crazy! I sometimes here creaking while driving it? None of the lights work, Doesn't charge the battery, electric start doesn't work even with a good batt and jumping the solenoid. Pretty much the whole wiring harness is and spliced. But it runs, has brakes and a working kill switch.

    Anyone know where I can find a topend end for this bike? Ive searched ebay with no results.






    Last edited by zppeacock; 07-13-2009 at 07:24 PM.
    1985 Auto X lots of upgrades
    1982 Honda 185s 3inch wheel spacers, bassani exhaust
    2001 400ex
    1983 110

  2. #2
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    Quote Originally Posted by zppeacock View Post
    Its got pretty much brand new trail pros on it. .
    All trail pro's look new. They never wear. I swear in a million years they are going to dig up a YT and say " this is part of our history, but...... i wander when the new tires got put on it? "
    Never argue with an idiot. They will bring you down to their level and beat you with experience.

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  4. #4
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    Pictures coming, thanks for the link.

    The trail pros still have some of the hairs on them.
    1985 Auto X lots of upgrades
    1982 Honda 185s 3inch wheel spacers, bassani exhaust
    2001 400ex
    1983 110

  5. #5
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    The creaking is probably loose wheel hubs .
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  6. #6
    fabiodriven's Avatar
    fabiodriven is offline Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers. Catch me if you can
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  7. #7
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    I'll check out the hubs.

    Does anyone think that I could solve the smoking problem by a fresh set of rings?
    1985 Auto X lots of upgrades
    1982 Honda 185s 3inch wheel spacers, bassani exhaust
    2001 400ex
    1983 110

  8. #8
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    Quote Originally Posted by zppeacock View Post
    I'll check out the hubs.

    Does anyone think that I could solve the smoking problem by a fresh set of rings?
    anyone?
    1985 Auto X lots of upgrades
    1982 Honda 185s 3inch wheel spacers, bassani exhaust
    2001 400ex
    1983 110

  9. #9
    chrisand4's Avatar
    chrisand4 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    How much seafoam did you use with the gas?, one time a friend of mine put a whole can in his 4 wheeler and the thing smoked like crazy, just a thought, could be bad rings too though.

  10. #10
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    Wait Seafom + running enigne = Smoking. See you tube videos. Drain oil and see if it still smokes after a little while. Bad rings usually means lower compression. Done any compression tests?

  11. #11
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    Quote Originally Posted by TrailerRider View Post
    Wait Seafom + running enigne = Smoking. See you tube videos. Drain oil and see if it still smokes after a little while. Bad rings usually means lower compression. Done any compression tests?
    I know that seafom + running engine = smoke.

    It smoke before the seafom, its had 2 oil changes, carb clean, and a new plug. Its got low compression I can pull start it with 2 fingers. But it starts on the first pull ya honda!
    1985 Auto X lots of upgrades
    1982 Honda 185s 3inch wheel spacers, bassani exhaust
    2001 400ex
    1983 110

  12. #12
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    Quote Originally Posted by zppeacock View Post
    I know that seafom + running engine = smoke.

    It smoke before the seafom, its had 2 oil changes, carb clean, and a new plug. Its got low compression I can pull start it with 2 fingers. But it starts on the first pull ya honda!
    I would pull the plug and put a little oil into the cylinder and see if the compression rises. With mine when I put the oil in the cylinder the pull got real hard like it should. This means likely the rings are shot. If the compression stays the same than maybe the valves need some love.

  13. #13
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    I tired that, it got a little more compression on the first pull, but then it was back down to what it always was. I dont have a compression tester but I looking to get one so I can get back to you guys with real numbers
    1985 Auto X lots of upgrades
    1982 Honda 185s 3inch wheel spacers, bassani exhaust
    2001 400ex
    1983 110

  14. #14
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    Sounds like rings. Yeah the oil thing only works for 1 or 2 pulls then it will be back to the normal compression levels.. low. Get a tester and post the numbers. dratv sells the topend kits for your 125m. And much, much more. It's where most of us buy parts from. Have you grabbed a manual yet?

  15. #15
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    if its smoking that bad the cylinder is prob scored too it will most likely need an oversized piston and a frsh bore
    proud owner of a trx300ex quad and an 85 atc 70

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