Merry Fisher 755 - underpowered
Apr 24, 2019 11:16:04 GMT
Post by cwood on Apr 24, 2019 11:16:04 GMT
Hi all
I have recently purchased a 2015 MF755 with a Honda 150hp outboard.
She has been out of the water for a couple of weeks whilst I fitted a diesel heater, more batteries, fridge etc.
Prior to this work I took her out a few times and was able to get a good 25kts in good conditions. Since relaunching I was firstly only able to hit 18-19kts at 4600rpm and then 20.5kts at 4800rpm the following day in ideal conditions and with 4 adults + plenty of food/drink onboard. Bottom is (relatively) clean.
The engine has only done 70 hours and has just been serviced. The prop is a 15.5 x 17" 3 bladed aluminium.
I feel that the pitch is too large with the weight I have added now but can anyone advise what I should go for with this set up? I don't mind sacrificing top end speed for economical cruising.
Many thanks!
I have recently purchased a 2015 MF755 with a Honda 150hp outboard.
She has been out of the water for a couple of weeks whilst I fitted a diesel heater, more batteries, fridge etc.
Prior to this work I took her out a few times and was able to get a good 25kts in good conditions. Since relaunching I was firstly only able to hit 18-19kts at 4600rpm and then 20.5kts at 4800rpm the following day in ideal conditions and with 4 adults + plenty of food/drink onboard. Bottom is (relatively) clean.
The engine has only done 70 hours and has just been serviced. The prop is a 15.5 x 17" 3 bladed aluminium.
I feel that the pitch is too large with the weight I have added now but can anyone advise what I should go for with this set up? I don't mind sacrificing top end speed for economical cruising.
Many thanks!
