Join Date: Jul 2015
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I drained and changed the oil, cleaned up the carburetor as well though it looked like it had been replaced fairly recently and wasn't too dirty. I then checked the valve clearance as another possibility for the hard to pull issue. They were definitely wider than the .004 recommended spec. I had to take the valves off completing to tighten the base nut on the plate as they were rotating as well.
Seems I have addressed the hard to pull issue by doing this, but after a solid start the first time, it seemed to lose power after running it around a bit then I couldn't start very well again even though easy to pull. Almost seemed like lack of compression now. Checked the valves again and made some adjustments and then it started again, but it seemed to be weak power with some black smoke like it was sputtering. Sometimes the full power would kick back in again or slow down again with less power. One of the screws for the valve cover appears stripped now. Wondering how much of an issue that would be causing or if there is something else going on with loss of power back and forth?