Pipe temp

[unit32]

Does anybody know or have a guess at what the temperature of the exhaust pipe might get to assuming perfect jetting. I'm talking about the section of the pipe coming off the cylinder. Any help would be appreciated.

[Honda 250r 001]

im pretty sure it should be under 300 degrees. i believe last time i checked mine it was like 250ish? cant be for sure though. i will try to get another reading and get back to you.

whats yours running?

[trx250rider]

300 ish^^^^ i hope it not near that seems how the engine should run about 180

[Honda 250r 001]

well diesel engines can run 1000 degrees exhaust temp while running under 200 degrees cooling temp. (i should know im a farmer) and they run like that all day long. so the exhaust should be hotter than the cylinder temp.

now im not sayin a 2-stroke can run that, but it defeneatly needs to be hotter than the cylinder temp.

[gandgracing]

I was wandering this myself. I have a handheld temp checker and was getting like 340 ish with a 431 Puma that I am tuning. I also agree that your exhaust temp wont be the same as your coolant but I dont know what exhaust should be. Seems like the hottest spots were down on the pipe where it starts to make the turn to the right and at the big part of the pipe.