Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: 2014 90hp 4-stroke Yamaha too heavy for 1988 montauk 17

Posted by Finnegan on 05/19/17 - 9:24 AM
#19

Regarding the Outrage 18 engines, I should have said that with both Yamaha and Mercury, the 70/75's and the 90's are the same weight. so once again these engines fall with in the ability of the hulls to carry the twins. So for the same weights, I always buy the more powerful version. In 1986, when my boat was manufactured, a pair of 1986 Mercury 75's was 550#.
In 1987, a pair of Mercury 75's was 600#.

I would take a pass on the heavy Suzuki 140 , since from every thing I've read its only a 125 HP engine. You would get at least the same power, if not more, from the popular large cube Mercury 115 ProXS at only 359#, also a 125 HP engine.

My 18 Outrage comes up on plane very fast. That is what you get with conventional 2-stroke power.

In the case of this Montauk the tee top may be adding weight to the hull, which could also have a waterlog situation? I suppose it's also possible that Yamaha is under advertising the real correct weight of the engine. It's been known to happen in the past.

I remember an article in a bass boating mag about 10 years ago, where they decided to actually weigh all three of the 225 HP DFI engines from Evinrude, Yamaha and Mercury, to see if the advertised weights were correct. ALL THREE WEIGHED MORE THAN ADVERTISED.

It turned out that Evinrude was the least honest, with the highest weight over advertised, something like 60#. Yamaha was in the middle at about 40#, and Mercury used the least deception, only 15# heavier than advertised. So I guess none of us really know what we're getting. This could apply to boat hulls also. Look at the number of people who have had their rigs weighed on truck scales and find them way more than expected, or what should calculate, based on listed weights of engine and boat.