Okay, so the best answer from all of you guys was vinceGU05! Every guy I meet wants a 36inch bar and chain on a saw that doesn't have anywhere close to the power it takes to pull that much chain! Now, I'm going to tell you the real reason that kills chainsaws! If you go back in time and take a look at all the chainsaws that were made, they all had a stinger exaust pipe that allowed the exaust gasses to flow out and away from the saw! A chainsaw was designed to disapate heat being made of magnesium that transfers heat very well! Take a look at all the crap that they put in the exaust pipe these days trying to save the planet! You cannot restrict the exaust of a 2-stroke! The piston is traveling too fast and when you have an explosion of fuel, as soon as it cracks the exaust port open as the piston is traveling down, you now have super heated exaust gasses rushing out at twice the speed of sound! Now, you put a spark arrestor in front of that super heated spent charge, and let's throw in a couple of Baffles to slow it down and a directional change before squeezed out of a narrowed down hole to get out of the saw and you have a heat issue! Because as the piston is traveling back down the cylinder it sucks those hot gasses back into the exaust port and down the transfer ports! And with all that crap restricting it's path you have a piston firing another and another back to back with no rest from the heat! And as Tyrrell says, And there's your dinner!