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high reving and super hot exhaust.!!

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ok so heres my problem... i just rebuilt my bike this winter and brought her outside to start it. it fired up on the 3rd kick, but started to rev really high. so i shut it off and in 5 minutes i fired it up and it was reving really high again but i let it run for 5 mintues to see it stuff just had to seat into place and then calm down. well it didnt so i shut it off. i then reached down to see there was carbon and crap flying out of the exhaust hole were it meets the motor. i went and ordered a spring and oring kit for it so that will be fixed. now the other problem is with in that 5 minutes of running i touched the pipe and it was smoking hot!! i cleared the lines in the coolant but was still smoking hot! is this normal or that fact that the bike is running a little rich??? any help would be great! thanks alot guys!

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High revving and hot = lean.

+1

If you didn't touch the carb then you have an air leak.

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no i didnt touch the carb. and i think my head nuts arnt torqued all the way(old torque wrench).

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ok so i got my new oring and springs for the pipe and checked all the head nuts. then i fired her up and it idled normally. i gave it a shot of throttle and let go and it started to rev a little high but nothing like it did before. i took it for a boot up and down the street and it seemed to run fine, i would pull in the clucth and it would rev a little high again? is this just because my new top end is brand new and needs to break in? and 1 other thing the pipe is still smoking hot after a 10 minute rip is that normal? to tell you the truth ive never touch my pipe on any of my bikes lol and i have been riding for 5 years. so i have no idea how hot they normally get. thanks guys for the replys.

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Ok, you did a new top end. One small thing, did you adjust your idle screw back down? Also did you clean the carb and get rid of the old gas after all winter?

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no i didnt touch the ilde screw, and i didnt touch the carb.. should i clean the carb and if i didnt touch the idle screw why would i need to turn it down from last year? jw. should i turn it down.

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Clean the carb, put in fresh gas, same ratio you ran before (that is important) and then go through the idle adjustment procedure.

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