UMS 75cc 5 Cylinder Test Run With Menz’s 24 x 10 Prop at Morris' Mini Motors 

Hello Morris, does the UMS 5-75 have more power than the Saito FG60 ??? What do you think?? Thanks for an answer😊

Wow really rich mix ratio

how much

Would this motor fit a Ziroli Corsair?

Would this be an ideal engine for a bicycle? My 2hp 2 stroke gets my bicycle going 30mph. I’d like a 1-1.5 hp ~25 mph 4 stroke. A plane engine or a mini v twin would be cool

Jesus! You could mount that thing to the front of your car and let it drag you around!!!