larryhobman
Scoot Enthusiast
Posts: 117
Location: Delaware beaches
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Post by larryhobman on Feb 15, 2019 13:50:38 GMT -5
Has anyone seen this ball in a pd18j carb?? It is not attached to anything. I probably have 15 of these carbs and never seen this ball. Is it some kind of restriction part???  |
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Post by tortoise2 on Feb 15, 2019 16:09:59 GMT -5
Speculation . . may be associated with the "charcoal canister hook-up" passageway on some carb variations? |
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Post by KSR Moto on Feb 17, 2019 13:49:38 GMT -5
I have seen at least 5 different variants of the same carb, the parts can fit from one to another but they usually dont work right, although they look basically the same, that's why I buy whole new carb rather than replacing individual parts
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larryhobman
Scoot Enthusiast
Posts: 117
Location: Delaware beaches
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Post by larryhobman on Feb 17, 2019 13:57:16 GMT -5
I want to see if the ball should be kept or removed. I took off all the emissions crap. It is just a metal ball smaller than a BB and it comes right out. It just seems to be taking up that space.
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Post by FrankenMech on Feb 17, 2019 14:13:30 GMT -5
The ball is a check valve. Trace out the passageways and see where they go. Figure out the purpose.
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Post by SMALL CC TEK on Feb 17, 2019 14:18:06 GMT -5
I looked at your post the other day and wondered the same thing . I have never seen one with the ball in it ever , i even went to all my manuals can't even find the ball on the parts list ! I have taken apart 100 or more of them and that is the first time i have ever seen that wild ! Man the casting on that carb is horrid the mold that came from was done years ago , that is probably the issue with a lot of lowend carbs they don't function right because of the old molds and machine work or lack of machine work after that casting issue .. Good question you posed stumped me you had me looking in manuals I have all the old Kymco ,genuine, and more not one has that on the parts list ...
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larryhobman
Scoot Enthusiast
Posts: 117
Location: Delaware beaches
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Post by larryhobman on Feb 17, 2019 15:12:43 GMT -5
It came on a qmb139 49cc 2011 scooter. For now I just put a 44mm kit on because I had it already and removed the PCV system. Should I use it with the ball or removed it. There are NO springs or holes under it just solid metal.
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Post by scooterpimp on Feb 17, 2019 15:17:06 GMT -5
Any holes etc. In float bowl ? Where it contacts this area?
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larryhobman
Scoot Enthusiast
Posts: 117
Location: Delaware beaches
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Post by larryhobman on Feb 17, 2019 15:29:19 GMT -5
No, The bowl is the normal bowl.
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Post by scooterpimp on Feb 17, 2019 15:36:23 GMT -5
I would toss it , but that just my 2 cents worth. You darn Delaware guys.lol.
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larryhobman
Scoot Enthusiast
Posts: 117
Location: Delaware beaches
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Post by larryhobman on Feb 17, 2019 15:49:26 GMT -5
I would toss it , but that just my 2 cents worth. You darn Delaware guys.lol. Thanks for your input and that was my first thought too. You are in Delaware too, I'm down by Lewes if you come this way let me know. |
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Post by tocoo on Feb 18, 2019 0:45:43 GMT -5
i have ball but not on the banana thing. it is on a generic unrestricted pd18j carburetor   there is a ball in the fuel pump, but it is completely different than this little ball in the carburetor |
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Post by milly on Feb 18, 2019 7:26:13 GMT -5
I had one if memory serves me right but I am sure it was accelerator pump side but not sure it was not where that one is but down a gallery with a very small spring not much bigger. I remember because I dropped both on the floor and we're a sod to find.
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