Decisions often have far reaching effects. When Buell crushed the Blast, it caused a bit of collateral damage to the Mac Motorcycles plan of basing their new bikes on the Buell sourced 500cc single. After retiring to the pub for a “what now?” session, the boys at Mac came up with some alternative ideas and sent over this reworked image of the Spud with an engine from the Yamaha XT660.
A quick comparison of the specs shows a jump from 34 to 48 horsepower, a nice bump in a bike this size. The Yamaha single, in contrast to the Blast, is fuel injected and water cooled while offering parts and service from your nearest Yamaha dealer, not a bad thing. According to Mac, the pricing is expected to stay the same.
The Yamaha engine requires a frame change with an extra tube or two to mount the engine and radiator. It doesn’t have quite the clean look of the original air cooled single but remains far better than most (all?) of the other liquid cooled choices. Come to think of it, what would those choices be?
I assume there’s a weight penalty with the switch, they didn’t give any details, but it’s probably small and the extra power makes up for it in any case.
So, is this a good choice to replace the Blast engine? Does the look still work? Is this something you would want in your garage? Let’s hear your ideas.