Originally Posted by Boatinggary89
The reason for fitting it in the first place was some times the boat feels really responsive and other times feels sluggish. Is that sea conditions ? Flat calm or decent swell.
Hi Boatinggary.. when you mention it feels sluggish ..do you mean the OB doesnt seem to rev so fast as well as the boats performance feeling sluggish ?
I ask as i know my OB on the F Rib planes no problem in normal condition..but when it gets rough and I have extra weigh of water in the bottom of the boat.. because my power to weight ratio is not so good..the OB will start to struggle..and because it cant plane ..it cant reach its normal max revs of around 5k..it stays at around 3k until it builds up the speed to plane again ..which can take a good time. It therefore feels very sluggish at times in marginal conditions
A 15 HP on a 3.4 should be fine but if heavy loaded ..it could make it marginal ? Listen to the revs on the OB when it gets sluggish..if it sound lower in revs..it could be weight issues ? Especially if you needed the fins to help it plane to begin with.
Just a thought