Introducing our high inertia coupler for Yamaha 62T, 63M, and 65U engines. While it might seem like this would slow engine response, it actually smooths out power delivery, enhancing hole shots and hook-up. 

This design helps bridge the gap in power delivery between two-stroke and four-stroke engines, improving overall performance. We’ve also noted a 1 mph increase in top speed with this coupler. This approach has been used in motorcycles for years, and now it’s available for the watercraft industry.

If you’re running a sports spec Blaster and find yourself outpaced by another Blaster on the straights, check their coupler.

We’re also developing similar products for the Kawasaki X2 and other models. This coupler uses the Kawasaki-style drive rubber and comes with the engine side only.