Yep, sure sounds like your highspeed needle (the screw up beside the air cleaner)is set too lean.. Give that puppy a 1/2 turncounter clockwise and see how she does! (After that, use 1/8 turns to fine tune) Running it that lean can and will run it too hot, and eventually damage it.. (Not to mention it hurts performance) Keep tuning the HS needle until it runs goodand puts out a nice stream of smoke at full throttle! Once ya have that set, make sure your low speed needle (one that's where the throttle linkage connects to) is set so ya JUMP off the line good! There's alot of ways to tune, but for the low speed, I use the "pinch" method.. Ya pinch the fuel line that enters the carb, and wait for it too cut off.. It shouldrev a little and cut off in a second or two.. If it takes too long to die, and revs "excessively" it's a little too rich. If itdoesnt rev up before dieing, it's too lean.. Remember, to adjust: clockwise = leaner; counter clockwise = richer.. Also, there are lots of videos on "youtube" that'll help ya tune these things!! Alishanmo
is one of the best, imo, and has a bunch of cool vids you can check out about Redcat Racing RC's!! The one I linked to (click his name)is a good one!!