Which type of motors are your referring to? My geared 500w 8fun motor is noisy and suppose it is a high powered type motor when running at full power do normally get hot to touch. Trex, remember that you are dealing with a novice here.when there is an unfamiliar noise coming from the motor or the motor gets hot to touch.
Yes Trex, you are correct about the bike I ride but I am not too sure about the little guessing games though. My warranty has ran out now and if I was to take it to them it is always good practice to be a few steps ahead. It's not been a problem of such really, because it has been noisy since the day I bought it. Most likely it is that geared type of motor or maybe I need to hear the type of noise that you are talking about. Like us all we hate to hear our bikes running noisily , sweeky or ticking away.if I remember rightly, you've got the Life Cycle Sport 500W and we were playing a little guessing game some weeks back? I have no experience of it but if it worries you, you should check with Life Cycle. I never had a motor dying on me. I did replace a clutch unit on an 8-Fun before, a little pig of a job, won't want to do this again. All my motors are never too hot to touch even after a long run and the noise from the motor never attracted any attention.