Looking for a small outboard jet to power my new-to-me inflatable.
But, I'm getting different numbers when it comes to weight claims.
Some of the factory jet outboards show the following weight differences:
Yamaha 40 prop = 223# / Yamaha 40(30) jet = 221# (so the jet is a little bit lighter)
Mercury 25 prop = 157# / Mercury 25(18) jet = 186# (so the jet is much heavier)
Mercury 40 prop = #260 / Mercury 40(30) jet = 267# (so the jet is only a bit heavier)
When I talked to Jet Outboards, Inc. that makes jet units for manufacturers, as well as conversion kits for other makes of motors, they said that their jet-pumps only add about 8# to a standard prop outboard.
Why three different outcomes: less weight, more weight, and much more weight?
PS - I've also heard that Evinrude E-TEC's have heavier lower-units than other makes, so converting one to a jet shouldn't change the total weight?