I made a video but the fan is so noisy that exhaust sounds cant really be heard so I didnt post it.
No, doesnt surge at all. It's not like its swapping back and forth between load and idle circuit. It's just a rough/uneven idle. Engine speed does not change. It's just not a smooth idle.
It acts like a vaccuum leak but I've already sprayed brake cleaner around the manifold and carb connection to check for leaks. Maybe I should get some ether and try again?
Surfacing the rockers is not really an option. there wont be anything left if they are flattened. This tractor is a play toy only for my friend. The only thing it does is pull a trailer with fencing supplies. They farm with modern CIH equipment but have this thing around to play with. They have alreay spent a pile of money taking it to "professional mechanics" who couldnt find the problem (dirt dobbers in the air cleaner). (I'm the 5th guy to work on it). I have found the problem and repaired the issue of it stalling under load but I'm just not happy with the idle quality. I want it to purr like a kitten when they get it back.
Does no one adjust their tappest by number of turns? Its just the norm for two cylinders. It compensates for worn parts where feeler gauges are not able to be used.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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