Have just received the above from HiModel (would have been somewhat cheaper if I had waited for HK to re-stock them
) RC Forums have 64 pages of posts on this one engine, it certainly appears to have some issues, but I now have all the items for the suggested mods. Being about the smallest petrol engines available, and with a plain (as distinct from roller) crankshaft bearing, general opinion is that it needs a lot of oil; one experienced owner even advocating 15/1 using fully synthetic. So I was considering this ratio using Morgans Coolpower blue. I would appreciate comments. Bruce, if you hapen to read this, did you get to do that promised review of model engine oils ?