Hs 40

1971_MB1A

Well-Known Member
#5
Does it need to be originally from a 1970 Cat 400X only #'s specific or would a 1970 HS40 from another make/model also work ?
 

1971_MB1A

Well-Known Member
#8
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 ?
 

1971_MB1A

Well-Known Member
#12
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.
 
Top