have seen this happen so many times where i used to work. i used to really stress the point to customers to take care on new tyres.. even so, you would sometimes end up pulling out the box of plasters and the dustpan .
jonno243, the reason he is revving the bike like that has nothing to do with the slow speed jet, it is because the flywheels are so light and the compression so high it will stall at low revs.
it made just under 9bhp at 13,500rpm. for a 49cc!!
that works out at 170bhp per litre and not bad consi...
@Keegz2k7 no video of you rallying on here then?