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When did carbs become a disposable part?

Discussion in 'Chainsaws and Power Equipment' started by bocefus78, May 19, 2015.

  1. bocefus78

    bocefus78

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    My neighbor brought his tiller (Bolens by MTD) over last nite for me to fix. The primer bulb was turning a rubbery goo from the ethanol that was sitting in it for years. He had already tried to start it with the old gas (varnish) in the tank. The bulb compressed and never came back out.

    I thought, no big deal, clean carb, replace bulb, done. Nope. Not so easy. Bulb was permanently mounted in a plastic molded carb assembly mounted on top of the tank, using it as a bowl I guess.

    Anyway, what a POS design. $40 carb had to be replaced instead of a $.50 primer bulb.
    Just venting. Sorry.

    Thanks MTD. Cheap out some more why don't ya?
     
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  2. clemsonfor

    clemsonfor

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    I rebuilt a carb on my earthquake saw and it did nothing. Had to replace the carb to get it to run right again. Never and E gas in it so not sure what the problem was. It was a walbro carb too and didnt last a year. Not sure but the chinese replacement worked as soon as I started it up :)
     
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  3. foragefarmer

    foragefarmer

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    Started what? 10 years ago? Something like that. One word ethanol.
     
  4. Oldman47

    Oldman47

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    Not an ethanol bitch thread FF. The complaint is that what should be cheap replacement parts are simply not practical and a whole new carb was required. Bad design from a maintenance point of view.
     
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  5. pantelis

    pantelis

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    Ethanol is cancer . personaly before the winter storage i use ethanol free gas and i run my saws with this about half tank, then i storage them.
    or i take of the carb open it clean it and put it again to the machine.
     
  6. pantelis

    pantelis

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    The factories care only for theirs pockets , not for you be sure for this.
    the last month i have seven husqvarna 560 xp with the same problem . bearings failure all of them was one or one and a half year old. say you something ???????
    SKF bearings with plastic balls keepers in a crankcase enviroment mayby this say something more how the factories care
     
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  7. Horkn

    Horkn

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    I hate to break it to you guys, but unless you are running av gas or similar ( premix in a can etc), if it comes from a gas station and it isn't race gas, it's probably got ethanol in it. Yes, even if it says it's e free.


    But the real issue is that some carbs are disposable now. After looking at the carb on my new to me Kawasaki bayou, I see its got a different, nin stock carb on it. It's probably a Chinese keihin knockoff carb on it. Even if that is the case, if the Chinese carbs last even 5 years, that's not horrible. The Chinese honda trx300 carb is 70-80 dollars. A new Honda carb is about 350.

    I didn't take the carb off, as it runs fine, mostly, it may just need to be cleaned up.
     
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  8. clemsonfor

    clemsonfor

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    I rebilut my trx300 carb I will just buy a new chinese one off ebay next time. Its still not right after soaking and rebuild.
     
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  9. Horkn

    Horkn

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    Whatever you do, don't throw out the original trx300 carb. I may have questions for you.

    Not knowing the history of the quad I bought there's bound to be some questions that pop up, and I know it's not stock carb wise. There was never a primer on the kawi keihin.
     
  10. clemsonfor

    clemsonfor

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    I am not tossing it or replacing it yet. Its still on there. When I got it it was basically inoperable. Sometimes it would run (lopeimg) if you were on a super fast idle and shifted while holding the gas.

    You do need small hands to make getting it on/off easier. And I dont really have big hands or long fingers really.
     
  11. Horkn

    Horkn

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    The trx carb is bigger than the bayou carb, so that only makes it tougher to attach the air box You need a hair dryer to get the air box on the carb. Guess what, it's not hooked up on my bayou's carb, so dirt is probably in the carb. It idles high, and won't idle down. It also drips fuel from the primer.
     
    Last edited: May 19, 2015
  12. clemsonfor

    clemsonfor

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    Mine dripped from primer but I put some rtv silicone one it and really attached it. Although out doesnt hold up to fuel it is fine after three years or so.
     
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  13. Horkn

    Horkn

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    I'll try that with mine. At least it's not just dueto it being a crappy Chinese carb ( probably). If it's a real keihin, it will say so, very obviously.
     
    Last edited: May 19, 2015