i have a tmaxx that i droped in an os18tm a few weeks ago. i took it to the hobby store that i bought the engine from to get a better handle on breaking in. they were very helpfull and stood by me the entire time. we let it idle for four tanks and then took it out and ran four tanks at varying speeds. its running real rich so while tuning for performance,leaning the needle valve, just when i can get it to shift into second gear my temps reach around 250. i richen it up a bit and the temps go down but it wont shift and you can tell its running rich. in your book it said to not let the temps get over 230 but i just cant seem to make that mark. is this temp ok?

We're not sure what book you're referring to, but the instruction manual doesn't say anything about temperaures, that we could find.

Idling a model car engine for several tanks' worth of fuel is a sure way to shorten the useful life of your engine. The model must be run with the needles at a rich setting.

As far as teps go, we ignore them in tuning. Temps are unreliable. If the engine's running well, and is rich of peak RPM, then the temp you read is correct, no matter what anyone else says.

oh i'm sorry bill i could have swore i read that somewhere in the manual. well its still running a little sluggish so ill lean it out a little. i'm still getting a good trail of smoke. i just didn't want to get it too hot. thanks.