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O & R Carb Repair Tutorial

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With some tinkering around I got it to run, with a caveat.  Playing with the primer I was able to get the engine to run with the carb half open and the needle open to about 2.5 turns.  I backed the needle out further and I was able to run it with the carb fully open.  It ran this way for about 2-3 minutes then shut off, flooded or starved I'm guessing.  I made some adjustments and went to pull it again and the cord pulled almost freely, there was little engagement.  A couple more pulls and little engagement.  I played around with it some more and it was cool now and engaging again.  Do these heat up that quickly and the parts are that loose this happens, or is mine more loose than typical?  

 

I haven't tried to restart it since cool down as I wonder if something else potentially happened.

 

Edited by MajorH

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11 hours ago, Knockdown said:

Where can I purchase a diaphragm arm spring Part # 21-35 key# 12.

im brand new on here,

knockdown

:WMOM:

Where are you located?

We had resorted to making them from thin spring steel. Not sure if I have any more made but I can probably find one.

 

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4 hours ago, Knockdown said:

I’m in Scottsdale,Az

What O&R engine or tool are you trying to fix? Can you start a new thread and add some photos?

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On 6/15/2024 at 3:46 AM, Wallfish said:

:WMOM:

Where are you located?

We had resorted to making them from thin spring steel. Not sure if I have any more made but I can probably find one.

 

Wallfish,

have you located a diaphragm arm spring for me ?

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On 6/17/2024 at 10:20 PM, Knockdown said:

Wallfish,

have you located a diaphragm arm spring for me ?

I have not been able to locate one. @CNew is near you in AZ. Do you have one Clint?

 

On 6/15/2024 at 9:17 PM, Knockdown said:

It’s a carburetor and there is a tutorial on it

Is that all you have is a carb? Is it not on an engine? Or the engine used for a tool? That's what CNEW was asking is what engine or tool you have the carb for.

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Ok, keep us posted if it doesn’t work. I’ll keep looking through my parts stuff just in case.  Are the diaphragm and gaskets on ok condition? If the diaphragm is hard and brittle let me know.

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