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#1 |
Join Date: Dec 2020
Posts: 6
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"Retro 50" carburetor ID help
Hi there,
I've googled my everloving a** off trying to find information on this machine (a craigslist "it'll need a little work" find.) The owners manual calls it a "Retro 50" distributed by Madami. The model is listed as a "CF50QT-8" (I believe this refers to CF Moto.) The trouble I'm finding is related to the carburetor - it's a Walbro that isn't manufactured anymore. The model stamped on the carb flange is 2KO6JG2 (the O could also be a 0 (zero.)) Is anybody familiar with a drop-in replacement? I could potentially rebuild this one, but the float bowl o-ring broke and I'm not even sure it could be replaced. One thing stumping me is what appears to be a passthrough on the front (intake manifold) side of the carb. It runs horizontally and had two braid-covered hoses connecting to it. But it doesn't appear that the passthrough allows access into the carb - it's just a connector of sorts. Anyway, I'm rambling. Any help would be appreciated! Brendan |
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#2 |
Join Date: Aug 2009
Posts: 547
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Post up some clear pictures of the carb so we can see what you're working with.
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#3 | |
Join Date: Dec 2020
Posts: 6
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Quote:
https://drive.google.com/drive/folde...Rh45OzmTxxlqJ0 |
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#4 |
Join Date: Aug 2009
Posts: 547
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Yes, I can see the pics, it is a diaphragm-type carb, is it on a scooter that looks like the one below?
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#5 |
Join Date: Dec 2020
Posts: 6
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More or less, yeah I’ve got all the plastics off, but could take a picture instead.
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#6 |
Join Date: Aug 2009
Posts: 547
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Not sure if the one below will work for you or not...
https://www.vmcchineseparts.com/coll...ion-9-gy6-50cc |
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#7 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,042
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What is the engine model? The Chinese generally seem to use the same engine model, although I am not familiar with all the sub-engines under certain model names. For instance, there is the GY6 engine, but there are a few variants of that. If you look at this site, it explains where to find the engine model. https://ncystore.com/blog/gy6-engine-code
There are probably a few replacement carbs to be found for your bike if you cannot locate the exact one.
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"They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard |
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#8 | |
Join Date: Dec 2020
Posts: 6
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Quote:
1P39MB 1P = one cylinder, "pair valve horizontal engine" 39 = piston size MB = 50cc I'm leaning toward attempting to repair the one I have in the scooter instead of replacing it. To that end, I bought a set main jets and idle jets. The float valve has some corrosion on the tip, but I'm not sure what the replacement would be. The float bowl gasket appears that it all fits in the groove and the broken ends line up nicely. Maybe a dab of gasket maker there would work. I figure if I don't succeed there, I'll replace it. EDIT: to fix a missing sentence piece |
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#9 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,042
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I spaced it and forget to suggest this group https://49ccscoot.proboards.com/
They are very Chinese brand friendly, and while you are looking for 49cc engine information, they do discuss larger displacement scooters. There are probably people who either have your model scooter, or have a scooter that uses your same carb. Not to suggest to leave us, as you CAN be a member of both forums; the 49cc group will probably get you exact answers. If you do get your answer there, lease let us know how you solved the carb issues ![]()
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"They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard |
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#10 | |
Join Date: Dec 2020
Posts: 6
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Quote:
I'd bought some jets (main and emulsifier) but they're the wrong size, so now I'm back to leaning toward getting a new one. I'll post back here with updates! |
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#11 |
Join Date: Dec 2020
Posts: 6
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My other post, for the curious/posterity (and also to avoid this.)
![]() https://49ccscoot.proboards.com/thre...ification-help |
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