Originally Posted by cgoing
I looked back at some older data sheets for the SR 6 Seariders and none of them have a published maximum engine weight. It is not until a 2010 model do I see one published. I do know that my old Searider 6.0 which was a 1994 did not list a maximum engine weight on the capacity plate.
My D560 is the same way... the best way I've figured out is to compare the overall flotation of the tubes, as well as the overall flotation of the craft.
SR6 = 20" diameter , 2475 lb capacity
SR5.4 = 19.5" diameter , 2028 lb capacity
Since the tube diameters are close, the max weights are probably close.
The manual recommends a maximum
2 x 90HP OMC engines for the SR6 COMMERCIAL RESCUE, which for the era, weighed about 275 lb / ea, so under 550 lb if you want to stay on the safe side. It recommends
2 x 70HP OMC engines, which would put it at about 450 lb or so.
I'd throw a Yamaha F150 on it and call it a day.