1970 Broncco TX-1 Deluxe?? No shrouds or tins.

[Broncco DaveO]

Trying to make a parts list, but not sure how to identify motor size?It has a Ducati flywheel,Delorto carb And curved fins on the head.Would like to rebuild both engine and carb.All help appreciated.Thanks

 

[Triley41395]

Trying to make a parts list, but not sure how to identify motor size?It has a Ducati flywheel,Delorto carb And curved fins on the head.Would like to rebuild both engine and carb.All help appreciated.Thanks

Some more pictures of the other side might help. I'm fairly certain it's tecumseh. Hopefully someone can narrow down what size.