I don't have my boat yet but have been trawling the net looking at the various 3rd party prop manufacturers and trying to decide where to buy my first replacement / spare propeller.
It seems that the Suzuki DF140 engine has a low gear ratio for the size of engine of 2.38:1 which Suzuki claim means that it can turn a larger diameter prop.
The only problem is that all the third party manufacturers don't seem to have allowed for this and all the props available are of around the 13" diameter.
After finding a very interesting article on the piranha site http://www.piranhapropellers.com/bulletins/Suz4Stk.pdf
stating that using a 13" prop will have no where near enough blade surface area when compared to the Suzuki original for the DF140 causing excess slip and cavitation and suggesting that you use their 4 blade hub with blades intended for their larger gear case model hubs. This all sounding like a very reasonable and logical argument.
This in my mind would leave only 2 choices :-
(1.) Only buy the 14" original Suzuki propellers
(2.) Get a piranha 4 blade as described in their article.
Suzuki original props are likely to be very expensive and harder to come by second hand and Piranha props seem to be very scarce in this country (and I'm not sure I like the idea of composite anyway)
So my question is what experience have all you other Suzuki DF140 owners had when re-propping your boats and how did the props you chose perform?