Originally Posted by free_spirit

Hi Guys!

I have a K9 which I seem to be having a little problem with overheating. perhaps you guys might have some insight on it.

I am running Byrons 25% nitro and have about probably 2 gallons in it so far.
Currently I have tuned it and it is running at 125 to 130 degrees C still with lots of smoke but not enough punch at the low and mid range. after running it for awhile the carb starts to get heated up to about 65 degrees C and starts to have flame outs with difficulty restarting.

I am in a dilemma as I can lean it more to get more punch but at a risk of running at higher temps 140+, and there is also the issue of overheating carb.

I believe that there is potential in the engine but how can I tap it without flaming out and overheating.

Been having this problem for awhile now, so much so that I have not dared to race it due to reliability fears.

Perhaps I am doing something wrong, appreciate any help I can get from the guys running it too.

Cheers!

Dan