I have had my matrix rtr arena for about 6 weeks, up until now has been runing like a dream. But the last week i have had trouble starting it - The pullstart just free pulls out (but retracts no worries) and only grabs the motor every so often.I have taken it apart to find the problem, the pullstart retracts fine and spring seems in order, the oneway bearing seems to be ok and the motor to me seems ok. When i put it all back together it was better and the car did start but after couple of tanks it was doing the same thing.Has anyone had this trouble or is it something obvious that im missing. Any help would be greatly appreciated.
Thanks Wayne

Spanner, did you happen to clean everything up before you tested the oneway? It is very common for the oneway to function fo a bit after cleaning it, but fail again a few pulls later. My guess is that the oneway is faulty. You can replace the oneway by following [link=http://www.cenracing.com/downloads/TRonewaywriteup.doc]My instructions from the official CEN Download Page[/link]

I hope this helps...

it is also possible that the shaft the one way bearing turns on is slightly worn it may be a good idea to get a new one of those too while your at it there not all that expensive 10-15$