Just picked this up.

markus

Well-Known Member
#3
Bike was originally a Fox made bike. I think the flat engine plated ones were usually 5hp H50 Tecumseh powered. Pretty sure it was model 1341 "Black fox" and from about 1970 in the Fox brochure, but that brochure is really bad to show as an example because the most bikes shown look nothing like they actually ended up looking like (tanks and seat design and some other things never actually made it market)

Here's and example of one with a setup like yours was originally:
 
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