Motor Height Setting
A guy who works with outboards a lot looked at it and pronounced it good, but I'm still uneasy.
I put a straight edge along the bottom and marked it here with the red arrows. Seems to work fine with the 13 pitch prop, but cavitates on acceleration with the 11 pitch, tho' it's fine when I do get up to speed.
Set up like this, it gives me 25 mph @ 6200 rpm with the 10.5" x 11" prop that came with it and 27 mph @ 5200 with the new 10.5" x 13" pitch Solas prop. A 1,000 rpm change for 2" of pitch change seems like far too much for that difference.....I would expect around ~300 rpm change per inch of pitch. I thought/hoped the 13 pitch would bring it down to around 5500 rpm, the recommended max by Johnson. Surprise surprise.
What do you guys think ??