Mark Allum
New member
I am a new owner of a 2013 855 with twin Yamaha F150 engines, the boat runs very well but it cavitates badly on acceleration until it gets to 20 knots +, it doesn't seem to make any difference how fast you accelerate or whether trim tabs are applied etc, the props have 15 written on them which one company said seems about right, are there any other owners out there who could confirm whether this is normal or not, the boat revs out to 5800 & achieves 31 knots flat out, many thanks..