Hi Snowy,
Sorry to contradict Mark, What you have is a M18 El Bandito frame fitted with a M70 El Montadero(enduro) engine. It has slighly different gear ratios to the original bandit engine and a heavier flywheel,apart from that they are the same, both were 360 cc, had the same cylinder and piston. The heads were slightly different compression ratios as well.The bandit had a single coil ignition,the El Mont has a double plug ignition and the heaviest flywheel ever put on a dirt bike!!