On starting os50 in my trex600 it starts to run and then some how runs backwards i start this engine with an align hand held starter its kind of weird tho because it seems to run the right direction with the starter wond in the starter socket at the top but when i pull this out its as if the rotation drive cog then starts to turn the wrong way what seems to look like the engine is running backwards this happend yesterday the 19/12/12 up to then this engine has run fine and has had about a galon of 20% thru it over a 7 month time span any coments would be grately recived

Thanks ANDY