As I'm borred of watching chineese plastic scooters backplates, I'd like to mount new PX200 engine into my PX80 Lusso ('96). Does anybody have any experience in this matter. Will this engine fit without modifications of a frame, or modifications are neccesary. Actualy one of my friends tried to put 200 into his wife's 80, but failed. He said engine was to big, therefore the angle of back shoc absorber was too wide, comparing with its position when the original 80 engine was mounted. On the other hand my friend from Germany succesfully put 200 engine into PX 80 (both "alt"). On SIP webshop they write that 200 engine fits PX 80 Lusso, but just in case I spent 1.500 Euro redundant, I wanted to ask you.