thunderheadj
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First of all, i posted this info as a reply in an earlier post in the set up forum, but feel that this deserves it's own thread. Please help. Need to order new prop.
I was able to put over 10 hours on the boat this week. had a blast. Prop is not the right one for sure however. Just got off the phone with the dealer and he said he would give me full value back on the crappy aluminum prop (145) towards a Yamaha stainless that retails for $518..... Doesn't sound too great of a deal. I like to bargain shop for stuff like this.
Here's what happened. The boat is an SSRX 22' with the express tube and 115 Yam. It's a pretty light boat. We had either 2 or 4 adults with 2-3 coolers and some toys etc and 2 young kids @ 80 and 60 lbs.
The boat has a 13 5/8 x 13 aluminum yami prop. It launches out of the hole much better than expected and gets on plane right away....however, no matter how i trim it, the prop slips like crazy after planing. If I ease into the throttle after launching, it will grab and climb to about 30mph GPS. Problem. If I mash the throttle, it will jump up to 65 to 6600 rpm! Partly due to slipping, partly due to wrong prop? If i trim down all the way it will still hit 6500. When it is trimmed at what feels like the sweet spot where the motor seems to be happy, i am only at 3/4 throttle at about 3/4 trimmed up according to trim gauge. If someone walks from the back to the front, it will lose grip and slip and fall flat again.
Dealer says that it needs a stainless prop, the Yamaha 14" x 13 pitch. He says this should fix it. Too much flex on the aluminum. I don't know about that.... It seems to me that it needs a larger diameter for sure, but I would think a 14p would be better considering my rpm should max at 6100. I just need a prop that will grip. There is really no setting as far as the motor goes, trying to lower it a notch. It's at it's lowest setting, resting on the top of the transom. I almost feel like the motor is up too high... I had to keep most of my weight in the back of the boat to be able to keep decent grip.
Any thoughts? I need to get something ordered. Is the dealer on the right track? Should I be looking for a Merc prop llike a Mirage Plus maybe? 14x14ish? I've had quite a bit of experience with props on 21 foot bowriders with 300+ horse inboards, mixed with trim tabs, hooked hulls etc.. but this is a whole different beast.
Thanks in advance everyone.
I was able to put over 10 hours on the boat this week. had a blast. Prop is not the right one for sure however. Just got off the phone with the dealer and he said he would give me full value back on the crappy aluminum prop (145) towards a Yamaha stainless that retails for $518..... Doesn't sound too great of a deal. I like to bargain shop for stuff like this.
Here's what happened. The boat is an SSRX 22' with the express tube and 115 Yam. It's a pretty light boat. We had either 2 or 4 adults with 2-3 coolers and some toys etc and 2 young kids @ 80 and 60 lbs.
The boat has a 13 5/8 x 13 aluminum yami prop. It launches out of the hole much better than expected and gets on plane right away....however, no matter how i trim it, the prop slips like crazy after planing. If I ease into the throttle after launching, it will grab and climb to about 30mph GPS. Problem. If I mash the throttle, it will jump up to 65 to 6600 rpm! Partly due to slipping, partly due to wrong prop? If i trim down all the way it will still hit 6500. When it is trimmed at what feels like the sweet spot where the motor seems to be happy, i am only at 3/4 throttle at about 3/4 trimmed up according to trim gauge. If someone walks from the back to the front, it will lose grip and slip and fall flat again.
Dealer says that it needs a stainless prop, the Yamaha 14" x 13 pitch. He says this should fix it. Too much flex on the aluminum. I don't know about that.... It seems to me that it needs a larger diameter for sure, but I would think a 14p would be better considering my rpm should max at 6100. I just need a prop that will grip. There is really no setting as far as the motor goes, trying to lower it a notch. It's at it's lowest setting, resting on the top of the transom. I almost feel like the motor is up too high... I had to keep most of my weight in the back of the boat to be able to keep decent grip.
Any thoughts? I need to get something ordered. Is the dealer on the right track? Should I be looking for a Merc prop llike a Mirage Plus maybe? 14x14ish? I've had quite a bit of experience with props on 21 foot bowriders with 300+ horse inboards, mixed with trim tabs, hooked hulls etc.. but this is a whole different beast.
Thanks in advance everyone.