>>166148>he ran more oil>>166129>he put 40-1 in it instead of 25-140 parts fuel to 1 part oil, vs
25 parts fuel to 1 part oil ...
40:1 is less oil than 25:1. Almost half as much.
But if he did run more oil ... what that does is leans the air/fuel/oil mixture (as well as loading up and fouling the plug... it'll be black and "wet" when you do a plug read). As the mix is leaned out the combustion gets hotter, as you work the engine harder you risk melting pistons. Pic related.
Either way... top end.