Hs 40

Mini Bike & Go-Kart Parts

I do have a very nice complete great running original 1970 dated HS40 non-lighted engine but it's not originally from a Cat mini bike. Did you change your mind as far as trying to find a totally original HS40 mini bike engine from a 1970 Cat ?
Squared off shroud is newer with the #'s stamped into the top of it. Rounded off shroud is older with the #'s stamped into an ID plate on the front of it attached by 2 rivets.