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I got her to fire up today. It ran great, need to make some small adjustments in the throttle cable/governor but otherwise it runs fantastic. no leaks/knocks/smoke(except for the initial start up). I have a couple other issues though. first of all the gas tank leaks, I'm going to get another tank off of ebay (a new tank is 290 bucks). as a temporary fix, I might see if my stepfather can braze it. another issue I have, is while the starter generator works and starts the engine, it cranks slowly. When I rebuilt the engine, the camshaft was missing the ACR, i installed another spring i had from another K series cam, so I know the ACR is working. I also double checked this while the engine was on the bench. I cranked it over by hand several times and the exhaust valve remained open just slightly. engine also is not hard to turn over by hand. I have a brand new battery installed, it is a 335 CCA lawn and garden battery. I don't know if that is enough, but that is the largest battery they had in that size. I had an old K161 at one point that had a starter generator, it turned over allot faster than this one does.

Do the starter generators crank over slower as they get worn out? Does mine need to be rebuilt and are they rebuild able? If they are what does it cost?


I did feel good to hear that old Cub running again. transmission does function, but I only moved it back and forth a foot or so, since I didn't want to get it all hot with that leaking fuel tank. I didn't run it very long, only a few minutes, but I can sleep at night knowing that it runs well.