ive recently purchaced a bullet from a police action......being new to the scooter world i havnt a clue! so....i bring it to my buddys home and he dose some wrenching on it and makes a mistake....oooops....he thought it was a 4 stroke and put the wrong oil in her!#@%...doah!!! how much damage did he do??? any and all help would be more then appriciated!! any suggestions?? and whos got an owners manual i could copy???