thanks for your reply, a picture is now emerging as apart from the rivetted plate headed as montesa/honda mh200 and also the stamped numbers on headstock bearing the same montesa/honda numbering starting with MH200 its looking like the bike is a mh200, my bike has gold akront rims and with half width hubs and when i purchased the bike it had a black frame which i assumed was incorrectly painted by some previous owner, i have since painted it red but didnt find any evidence of it having previously been red unless it was blasted or dipped however as the rivetted plate shows no signs of being disturbed this is unlikely, i have stripped the tank to the gelcoat and its never been red so looks like i have a mh200 with a cota 200 tank, as my engine has same last three digits as the frame number i assume its got its original engine,