I have finally gotten my trx 2.5 to beable to run through a full tank without overheating 2 times not. Unfortunately it takes till almost 1/2 tank before I get it adjusted where I have great pwer and it doesn't bog or stall. Both times I thought I had it tuned perfect I would try to start it the next day and it would flood and not turn over. After I get it started it is so rich that it spits fuel and stalls when I give it any throttle. I have to lean it out on the HSN when it is 1st started then after a few minutes richen it back up. Does this sound like typical worn piston and sleeve symptoms? I bought it used with a suposed new piston and sleeve and I did the traxxas break in and I have about 1-11/2 quarts through it.