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Aftermarket Carb Kits - A Case Study (Read 168 times)
DragBikeMike
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Re: Aftermarket Carb Kits - A Case Study
Reply #45 - 06/27/25 at 20:23:51
 
A quick look-see showed a nice contact line on the taper.  Not perfect, but you can’t expect more given what the carb body has been subjected to.  I got no way to clean up the seat in the body.
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DragBikeMike
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Re: Aftermarket Carb Kits - A Case Study
Reply #46 - 06/27/25 at 20:25:02
 
The bottom of the hole doesn’t look too bad.  I think it will be ok.  Look at the surface texture of the body.  I think this baby has been in some of that old-school Gunk.  Man, that stuff was good.  Those days are LG (long gone).
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DragBikeMike
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Re: Aftermarket Carb Kits - A Case Study
Reply #47 - 06/27/25 at 20:28:47
 
After thorough cleaning and blow-out, I put it back together and installed it on the bike.  The carb runs fine.  Note that the mixture screw can control the idle mixture smoothly.  I suspect that it was more like an on/off switch with the bogus screw since the tapered tip was so small that it couldn’t throttle flow.

https://www.youtube.com/watch?v=fKIl_bczY24

ThumperLife, go ahead and order the new needle jet and slide needle.  For these two parts, no aftermarket stuff, OEM parts are mandatory.  Use the information I previously provided.

The aftermarket carb kit should be here in a week or two.  Amazon already shipped it.  If we are lucky, the TEV diaphragm will be a keeper.  If not, no big deal.  It seems to be working ok as-is.  
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Dave
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Re: Aftermarket Carb Kits - A Case Study
Reply #48 - 06/28/25 at 03:25:49
 
Great work as always......I am not as skilled with my lathe and likely could not have made such a small part.
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LANCER
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Re: Aftermarket Carb Kits - A Case Study
Reply #49 - 06/28/25 at 04:38:58
 
Very fine work Mike, the mixture screw you made is beautiful, and works perfectly as you demonstrated.
Your training and talent are great.
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ohiomoto
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Re: Aftermarket Carb Kits - A Case Study
Reply #50 - Today at 17:16:17
 
Impressive.
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