Neither have I. I drained the oil it was shipped, a few weeks later refilled, started a run in for 15 or 20 minutes on the bench, drained and cleaned both filters. Refilled with mineral oil and it set in the frame cradle for a couple of months and 3 or 4 weeks ago I gave it a short run in the frame, no load, and finally a few days ago went to start and it was locked up. No sign of water "milk" or contamination in any of the changes and only a very small bit of aluminum in the filters. I actually was seeing about the same as when I broke in the same model engine on the Simplex. Clutch plates sticking is a good go to alternative, but the only area I addressed was the jug, but the rocking in gear might just as well have freed a seized clutch.
The clutch side engine cover has to be dropped to service the second oil filter and that area didn't reveal any debris, no pan on this models so splitting the cases is the only way to get a look in the crankcase. I will do another oil change after I get it running for thirty minutes or so to check for signs of damage in the filters and oil.
The motor ran well on both of the two test start ups...once it started, took a bit of cranking the first time not so much on the second. I drained the oil again today & it looked fine as did the filters,so I refilled and got it stated once again and ran for a couple of minutes and it died, I tried to restart and no good then noticed there was no fuel in the clear line or the transparent filter. I worked with it awhile took the vented cap off the tank, and ran new line and new filter, petcock also functioned perfectly & had copious fuel flow to the carb, but attach it to the carb and all flow stopped. It's a new Japanese built Mikuni round slide, but may have set up with fuel as I don't recall draining it after the second test run.
I'll get to it tomorrow though suggestions are appreciated. Rick C.
