Originally Posted by Nos4r2
IF it's the same gear ratio as my old '93 50hp non-bigfoot Merc on my old SR4, I got 44mph (or about 39 knots) with a 10 3/8x14" prop on it, solo but it dropped to about 34 knots 2 up.
50 knots is utter bull. At 39 knots I was just the other side of the chinewalking on oil calm water.
Well I am 135kg and my mate must be 90kg plus 50ltrs fuel, so we didn't have a hope in hell getting 39knts with the wave height. Will go solo tomorrow and open it up, I fitted a rev counter this afternoon, original back illuminated one and harness, from first test it ticked over at 1k and topped at 3.5k. Only problem is I had to fit it under the steering wheel due to lack of space so not the best place to get a good view, although perfect to see your nuts :-).