Posts: 3518
Location: north central wisconsin | OK, I need help. Just got the motor put on the ranger 690 Tiller and we're have a bit of trouble getting it propped correctly. Someone recomended that we run a 4 blade Yammy stainless with the motor on the top set of bolt holes. The dealer tried it and said it was ok, but lacked hole shot and top rpm(could only get about 5400 out of 6000 recomended apparently). So, after trying a couple of other props, they put the stainless job from my old Merc on it. I think it is an 18P but not sure. They left it on the top set of bolt holes and told me hole shot was fine and top end was great. Well, I got it home yesterday and I am not happy with it yet. The hole shot is worse than my old motor, and the boat wants to porpoise now at certain speeds, even trimmed all the way down. It is very touchy at other trim settings too. I am hoping to get it right this week when going in for the 10 hour check. Now, I haven't had it at WOT on plane due to the break in, but I don't really care if I lose a degree or two at top end, as long as the thing will plane out better and just handle better at running speed... Another thing, there is a considerable amount of torque in my tiller hand when running. Can the trim tab halp some of this? the old motor didn't seem to have as much torque on my wrist. I know that it is a work in progress, and I am not mad at the marina, as they told me to try it and let them know how i felt when I came back. I've been told the Merc. Vengeance 16p prop is a good one for this application... Any recomendations will be greatly appreciated regarding prop selection and motor setting. Thanks in advance.
Edited by Reef Hawg 9/3/2007 4:08 PM
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