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-   -   Erratic revving on barn find 1962 cc (https://www.onlycubcadets.net/forum/showthread.php?t=25965)

finz68 07-10-2013 05:58 PM

Erratic revving on barn find 1962 cc
 
any help will be greatly appreciated! when i open full throttle via the dash lever, the magneto lever on the engine that is attached to the butterfly on the carb by a thin rod keeps opening and closing revving erratically while the engine is running. I can only get full throttle if i manually hold the magneto lever and butterfly open. Any suggestions? I have tried playing with the 2 screws on the carb with no luck.

austin8214 07-10-2013 06:06 PM

That lever is attached to the governor not the magneto. And I would check and clean the carb up before you go any farther. Also we need to know what engine you are dealing with in order to help you better.

Sugarmaker 07-10-2013 06:33 PM

finz68,
First welcome.
You could have several issues?
(Yea that leaver is attached to the carb at the top and attaches to the rod for the governor at the bottom)
We just had a similar problem with uncontrolled revving on our 102 and found that the butterfly plate on the carb had lost a screw and was not functioning as it should. I agree take off the carb, clean and check first.
Regards,
Chris

finz68 07-10-2013 06:55 PM

Thanks. I just rebuilt the carb but will take it off and check. the butterfly plate seems to have no resistance or spring of any kind.

finz68 07-10-2013 06:56 PM

its a Kolher with a Carter carb.

Sam Mac 07-10-2013 07:25 PM

Quote:

Originally Posted by austin8214 (Post 204831)
That lever is attached to the governor not the magneto. And I would check and clean the carb up before you go any farther. Also we need to know what engine you are dealing with in order to help you better.

I told you the same thing in your post about the clutch.
"Go to the tech section and download the manual for your engine. The Magneto rod as you are calling it is the governor linkage. It sounds like you need to get the carb sorted out first before you damage something."
Do you expect one of us to come and fix your tractor and leave $20 on the counter?

finz68 07-10-2013 08:08 PM

sorry- first time in a forum like this and I didn't realize that I was taking advantage of all the knowledge out there. I will download the manual.

red56turbo 07-10-2013 08:19 PM

The best thing to do is to first download the manual and read it over good. Will give ya a good idea of what you're trying to fix.

Don't apologize for asking a question. We are here to help. It just helps us steer you in the right direction if you have a little knowledge of the area you're working on. I'm sure if one of us was close by, we'd stop over and help out a fellow cubber, no charge. :biggrin2: :beerchug:

finz68 07-10-2013 08:52 PM

Will do- much appreciated!

austin8214 07-10-2013 09:25 PM

Quote:

Originally Posted by finz68 (Post 204854)
sorry- first time in a forum like this and I didn't realize that I was taking advantage of all the knowledge out there. I will download the manual.

Is not about taking advantage of all the knowledge. It's about knowing and understanding what you are talking about so that you can explain correctly what is ailing your cub. Therefore the folks here can help you better. If you look at the carb adjust carb adjustment procedure for your particular engine that should get you close. Does your Original have the 7 hp engine in it?


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