combat</p>

I may have to try some of that alumiweld when I visit Harbor Freight next just for something else to mess with. Thanks for the info.</p>

 I also wanted to mention that yesterday when I was flying the Rascal with the Ryobi....I had a fellow flyer use his point-n-shoot temp gauge to see what kind of head temperature I was at after flying the Plane and what it was reading sitting on the field running after I came into land. He told me he was getting a head reading of around 180 degrees running. So I figure up in the air cruising that my head temp is probably running somewhere in the 140-150 neighborhood. I am thrilled with that and would be curious to know what other folks are getting and what type of oil they are using and at what ratio? I am using Klotz 80% synthetic/ 20% Castor mixed with gasoline 40:1. Of course head temps climb quite a bit right after you shut an engine off...so I would be more interested in what temps folks are getting after flying and with engine running? I really did not know what kind of temps to expect on mine since the Ryobi fits entirely inside the cowl and the only cutout on the cowl is a few air holes drilled behind the spinner and a cutout for the head at the bottom. It appears that it is staying nice and cool, and I am not sure how much credit the Klotz gets or if it is just the nature of these engines to run fairly cool. I was always happy if my Zenoah G38 was running under 220 using Lawnboy Ashless oil mixed 32:1.....so the 180 temp looked nice on the Ryobi running Klotz at 40:1. Of course the G38 was spinning up a fw more RPM's and more then likely has more internal friction due to tighter tollerances, but still I was thrillled.</p>