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9n plowing snow

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02-12-2014 03:37:28

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I have plowed more snow this winter than I can remember. My 1941 9n has been up to the task but lately I have noticed when she gets under a heavy load the engine wants to surge, does anyone have this problem or know what the problem could be?

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Colin King

02-12-2014 17:47:05

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 Re: 9n plowing snow in reply to INDIANARON, 02-12-2014 03:37:28  
I agree with Old. Moisture does accumulate in the oil bath cup. Not too noticeable in summer, but in winter it causes all kinds of problems.

It might also be time to check the points and service them.

I would go after air intake or electrical before I'd start adjusting carb settings.

Colin, MN

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02-12-2014 08:52:07

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 Re: 9n plowing snow in reply to INDIANARON, 02-12-2014 03:37:28  
Does choking it help or hurt it. If it helps open up the main jet a tad bit if it hurts then check the air cleaner and make sure it has good oil in it not mud and water/ice

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02-12-2014 03:51:40

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 Re: 9n plowing snow in reply to INDIANARON, 02-12-2014 03:37:28  
I would try moving the main fuel adjustment just a little..Make mental note exactly where it is now then try it with the screw turned 1/4 to 1/2 turn counter-clockwise..If that don't help, put the adj.screw back where it was originally, then try adjusting it the other way(clockwise)1/4 to 1/2 turn..Try this and report back, nothing to lose..

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Mr. T. Minnesota

02-12-2014 03:49:19

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 Re: 9n plowing snow in reply to INDIANARON, 02-12-2014 03:37:28  
What exactly do you mean it surges under load? Does it still have ample power to move the white stuff?
Mr. T. Minnesota

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