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Stuck Carb

  • Mark Serotta
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Replied by Mark Serotta on topic Stuck Carb

How does the float connect to the pins shown in your pic?
20 Jun 2022 12:55 #41

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Replied by Mark Serotta on topic Stuck Carb

Hey RT325, I just noticed that in your carb diagram, the floats #8 are connected to bracket #7 somehow. How do those 2 pins in the bowl play into this?
20 Jun 2022 13:02 #42

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Replied by AirborneSilva on topic Stuck Carb

The floats ride on the pins, they are held in by two caps that should be yellowish in color.  I'll bet the carb cleaner ate them up. 

pin caps
1976 DT400C
1981 DT175H
1972 DT2 250
Last edit: 20 Jun 2022 13:22 by AirborneSilva.
20 Jun 2022 13:13 #43

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Replied by RT325 on topic Stuck Carb

If ya talking #33 the floats & arm aren't connected as such. Just a small pin out the side of the float rises up under the arm by being on the vertical two pins in the bowl. Caps aren't important but make assembling easier. In the photo off images of the bowl i can't see grooves for the caps anyway.
Lets get to the fact of [is there two pins sticking up in your bowl--whoever i'm talking too now haha]. Mark Serotta i think.
Last edit: 20 Jun 2022 15:25 by RT325.
20 Jun 2022 15:22 #44

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Replied by MarkT on topic Stuck Carb

Mark Serotta...  Not sure of your history and experience with these old machines but please don't be afraid to ask questions and post pictures.

When I first saw the float picture it was on my tiny phone...  and when I looked at it later I have to say you may have been really lucky they don't make carb cleaner like they used to.  The old fashioned stuff would have ruined anything in that carb that wasn't solid metal and the floats could have melted in the float bowl and clogged up the whole carb with sticky goop. 

Best practice is to completely disassemble carb before dipping in carb cleaner....  of course your slide is stuck so it would have had to stay but that would have been fine as it's all metal. 

I'd just hate to see this turn into a very expensive project for you...  or worse...  an unsuccessful one.  Normally these bikes take very little work to get them up and running...  stuck slide is a bummer though.  Be patient. 

Hope it frees itself up soon and with very little drama! 

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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
20 Jun 2022 19:20 #45

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Replied by Mark Serotta on topic Stuck Carb

Update: I got it! Kind of proud of myself. I used the hair dryer and it turned out to be varnish, not corrosion.   See pics, looks like everything survived except some gaskets/o-rings. I see how the floats slide on the bowl mounted guides and the float tabs press the bracket. 
The float is different than the 125's carb, where they are permanently connected to the bracket.

With regards to my experience, I haven't touched a motorcycle in almost 25 years and never had a stuck carb before. I am relatively accomplished mechanically, but the project is being done in an apartment shared garage with limited tools (and $).
Putting the whole carb in the Chemclean was just a dumb move, not thinking.
THIS THREAD IS CLOSED!!! THANKS EVERYBODY I APPRECIATE ALL YOUR SUGGESTIONS.
Mark.Update: I got it! Kind of proud of myself. I used the hair dryer and it turned out to be varnish, not corrosion.   See pics, looks like everything survived except some gaskets/o-rings. I see how the floats slide on the bowl mounted guides and the float tabs press the bracket. 
The float is different than the 125's carb, where they are permanently connected to the bracket.

With regards to my experience, I haven't touched a motorcycle in almost 25 years and never had a stuck carb before. I am relatively accomplished mechanically, but the project is being done in an apartment shared garage with limited tools (and $).
Putting the whole carb in the Chemclean was just a dumb move, not thinking.
THIS THREAD IS CLOSED!!! THANKS EVERYBODY I APPRECIATE ALL YOUR SUGGESTIONS.
Mark.
  
 
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20 Jun 2022 21:41 #46

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Replied by RT325 on topic Stuck Carb

Might be closed so i don't expect a reply--but--Top Man. Good to see success.
20 Jun 2022 23:09 #47

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Replied by MarkT on topic Stuck Carb

Congratulations!!! 

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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
21 Jun 2022 04:05 #48

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