I have a 1990s Yamaha 70 2-stroke (70BETO)
its starts after a few turns of the key and idles excellently and revs great but when I put it in gear
it revs at quarter throttle fine the when you get to about 1/3 throttle it Boggs and dies carbs a clean and filters to this accoured after I adjusted...
I drive a 3.8m Humber RIB with an old 2-stroke auto lube 75 hp Yamaha engine on the back, starts idles like a normal 2-stroke but when going full power it Randomly jults and even cuts out at time then starts right back up and same again.
Any Ideas
