when it winds over it seems to wind over too slow to kick the engine over,the engine back fires and refuses to start,hot or cold,the starter clutch seems to make a racket and if i put the jumper leads on from my car the engine will start off the button no worries,the battery is new and the charge regulator has been replaced with a later model unit giving it 14v charge while its running,the engine will fire on one kick of the kick starter nearly all the time. i thought if i replaced the starter with a more gruntier unit i would be ok,this is why i was going down the track of a replacement starter