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  1. #21
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    In summary, all three carbs worked fine. I didn't really notice one that was better than another. The Amazon carb https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 was probably the most work to adapt. It did have the advantage of the spring loaded float bowl drain plug. But required a different choke mechanism and plugging/enlarging of two holes. And frankly didn't really see any advantage to the performance.

    The other two ebay carbs, #631921 (via ROP) and #631918 seemed pretty equivalent. I could not notice any performance differences. Since others seem to like the ROP (rugged offroad products) carb and have had good luck with it, that's the one I'll probably stick with.

  2. #22
    Senior Member capguncowboy's Avatar
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    Quote Originally Posted by cfh View Post
    In summary, all three carbs worked fine. I didn't really notice one that was better than another. The Amazon carb https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 was probably the most work to adapt. It did have the advantage of the spring loaded float bowl drain plug. But required a different choke mechanism and plugging/enlarging of two holes. And frankly didn't really see any advantage to the performance.

    The other two ebay carbs, #631921 (via ROP) and #631918 seemed pretty equivalent. I could not notice any performance differences. Since others seem to like the ROP (rugged offroad products) carb and have had good luck with it, that's the one I'll probably stick with.
    Thanks for the update! I'm glad the ROP worked out for you and you're happy with it.

    I've seen those Amazon carbs before on Ebay. They're obviously not the correct carb because of the levers are very different. The hassle of making them work probably isn't worth it.

  3. #23
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    I decided to give the super cheap $8 Tecumseh carbs a try too. This one is advertised as good for HS50 motors, part number 632230 and 632272:
    https://www.ebay.com/itm/New-Carbure...72.m2749.l2649

    I don't have a motor ready to try it yet, but i will keep this thread updated as that changes...

    Just a general look at these el cheapo carbs... i like the choke lever. No spring drain on the float bowl.
    tec_cheap2.jpg

    tec_cheap1.jpg
    Last edited by cfh; 04-16-2018 at 05:33 PM.

  4. #24
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    I installed the $8 ebay Tecumseh carbs into a pair of hs40 motors. These carbs seems to work just fine... no better or worse than the $15 models i highlighted above. I like the choke lever. It's on the correct (right) side of the carb, and it's a nice size and bend. No float bowl spring drain, but nearly none of the replacement carbs had that (i do miss that option.)

    But there are two modification need for the $8 carb to really make it work.

    First the side hole needs to be enlarged with a 1/16" drill bit. This is the same modification we did above to one of the $15 carbs (the one designed for the primer bulb, though this carb is not intended for use with a primer).

    Second the throttle activator needs a 1/16" hole drilled into it. Otherwise there isn't a good position to hook up the lever from the governor to the carb. All the holes in that carb throttle activator are just in the wrong place to make the throttle operate smoothly.

    After doing these two modifications, the $8 carb seems to work just fine. Again i could find no performance problem (or enhancements) with this carb. And at $8, it's hard to deny it!
    Last edited by cfh; 05-16-2018 at 06:55 AM.

  5. #25
    Member Orson_Yancey's Avatar
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    CFH, Thanks for sharing this information. There was a time when I would disassemble and clean a
    malfunctioning carb. But at $8 to $15 for a new carb, it is making more sense to put on a new carb.
    Plus I plan to phase out the emissions (non-adjustable) carbs. I too like the spring drain on the
    float bowl.

  6. #26
    Havasu Dave's Avatar
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    Quote Originally Posted by Orson_Yancey View Post
    CFH, Thanks for sharing this information. There was a time when I would disassemble and clean a
    malfunctioning carb. But at $8 to $15 for a new carb, it is making more sense to put on a new carb.
    Plus I plan to phase out the emissions (non-adjustable) carbs. I too like the spring drain on the
    float bowl.
    Some of us who have been using the cheap replacement carbs for a few years and running corn gas have had more problems with those carbs than the original Tecumseh carbs. Specifically, the float bowl shut off o ring, or perhaps the machining of the needle is such that they tend to flood.

    The other problem is that all of these carbs run lean out of the box. Pilot jet settings tend to vary from either seated, or cracked, most likely again from inferior machining of the tapered needles. Your engines will run, but you don't get the fine tuning at idle you will get with an OEM carb.

    Yes, out of the box, they seem like a great deal, $10 instead of $80. I am not alone in being done with them. Note that on a few occasions, upon receipt I have opened the bowl only to find one of the two bowl hinge holes were not cast properly resulting in only one hole holding the hinge rod.

    Lowest possible quality at the lowest possible price.

  7. #27
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    i've put about 15 cheap carbs on motors and have not had a problem yet. In fact, i think i like the $8 version better than the $12-15 ones. I will say that the float bowl rubber ring was bad on one of the $15 models. But for some reason the $8 version seems to work out best. And you are right, they do run lean. but i haven't had any problems with that (nor any problems with adjustment.)

    I think with any carb that is this inexpensive, a good inspection before installation is probably a good idea. like you mentioned, taking the bowl off to check things is probably a good idea. Again i haven't found any issues, but i'm sure, given the price, there will be some issue at some point.
    Last edited by cfh; 06-11-2018 at 07:18 PM.

  8. #28
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    Here's a internal picture of the $8 carb. i don't see the issue with the casting on the float pin, at least on this particular carb. Overall the casting looks pretty good to me!

    tec5.jpg

  9. #29
    ZR9B's Avatar
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    I just ordered the carb from rugged out doors....Its going on a 72 Hustler....now the only problem is why the aftermarket secondary wont line up....hmmm

  10. #30
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    Tecumseh Carb Comparison on HS40 and HS50 engines - summary

    after living with these inexpensive carbs on various bikes and HS40 and HS50 motors, i have to say, i like the $8 to $10 Tecumseh 632230 632272 replacement carb the best. The choke lever is more versatile (at least for my bikes.) And overall i would say the carb just seems to work a tiny bit better than the others. Overall performance is not that much different, *maybe* a tad more low end (but high end is the same.)

    This picture sums it up nicely. The 632230 632272 carb $10 on the left, the more expensive $15 Rop 631921 carb on the right. See the difference? Not sure this really means much, but a bigger hole is better, right?

    Last edited by cfh; 07-25-2018 at 08:00 PM.

 

 

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