Aircooled Morini upgrades?

F

forties

Member
I know there are a few different hp versions of these motors. So what exactly are the differences between the different spec output Morini aircooled motors? Is it a simple swap a few parts to go from the low output version to the high output version? Or is it like piston/rod/etc differences where its more involved..
 
I checked and what I've got is an S5-GS. Hopefully the cylinder and everything is in good shape. From what I've read it should have a decent enough amount of power without any changes. Thinking about mounting it rearward on a tandem frame so that pedal clearance and pipe clearance won't be any issue.
 
Desdemonda basically for quick visual ID... the really fast one has the intake manifold pointed downward into the case. The more mild ones have the intake pointed sideways into the cylinder. Check google images for "morini S5" and "morini s6" to see the difference.
 
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