Detonation is a possibility if run on off fuel,Ive never seen it in a 2T Victa myself.....The over heating does seem odd the mower looks to new to have a hole in the muffler but it may or be leaking..To check for detonation pull the head and look for what looks like bubbles on top of the piston and in the combustion chamber you will have to give them a good clean to see it..Basically it gets that hot in there they strat to melt from pre detonation...but my money is on a hole in the muffler .Cheers
Last edited by chris125; 22/06/13 04:27 PM.
