So I took the Sundancer 330DA on a test run, both motors ran great up to 3000 rpm, except past 3000 rpm, port motor would easily go, up to 4000 rpm, starboard engine would not go past 3000 rpm even at full throttle. Also the starboard motor has a few small back fires when she starts cold..not sure if related, but possible. Thinking the secondaries are not opening up and it appears they are controlled by a vacuum? Does anyone know where to start looking for that or other suggestion? Thanks!