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m carburator

B

BRAD ENGLUND

Member
I recently replaced the head on my M tractor. After putting everything back on it and getting it running. When driving the tractor down the road it does not seam to run just right. I can push the chock in it will run better. I have tried to adjust both of the points on the carburetor while it was idling and under a load. It still runs the same. Do I need to put a new carburetor kit in it or adjust something else that I am over looking?

Any help will be greatly appreciated.
Thanks again Brad
 
Sounds like you've got an air leak between the carb and manifold to me, choking it richens it up, compensating for the air that is leaking by. Try tightening the bolts again, or getting a new gasket.

Ben
 
I am very interested in all the comments you get from this question. I just completed a ring job, new valves, springs and carb rebuild on my 49 M. When I restarted the tractor for the first time, it also runs similiar to the one discribed, but it will ONLY run smooth with run smooth with the choke completely on. Without the choke on it sounds like it is starving for fuel. We also thought air leak at manifold mounting surface, installed new thicker gasket - no change. Finally after several hours of trial and error, I tried a carb. off my 400 and it runs beautifully. Full throttle range and pulls great, starts great. what other suggestions are out there?
 
I would suggest rebuilding the carb. When you get the carb kit, you will also get a new carb-to-manifold gasket. When ever I get into an rebuild repair project, if the carb is an "unknown", I rebuild it.

IMHO.
 
Thank you to all that have replyed to my question. I will try to tighten the bolts. If that don't work i will try getting a new gasket. Thanks again.
 
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