According to my cheat sheet, from Z1 Enterprises, the 75 model engine #'s start with 1000001. The 77 model starts with engine #'s 3000001 so it at least has a 77 model block.
hmmmmm the lynx has a transplant heart ....I don't have a original bike ....all of mine are transplants of my own doing :smilie_happy: :builder: :moped: :heat: ahh done wing powered moped :mrgreen: