Did you end up keeping that height? I've got one with a 1981 50hp evinrude on it that always had a problem getting on plane. Gonna take it out tomorrow for the first time in 8 years, hopefully figure out why.
Yes, I've kept it at that height. Perfect, gets on plane lightning fast and I can trim it up about 30% for max efficiency. I think that the riser plates set it back far enough so that I can safely go with that height.
Thanks! I'm thinking about completing a 13ft whaler me and my dad worked on. He recently passed so i haven't worked on it in a while. I just need to set up the controls but there might be a problem with the carb.
Sorry about your dad. Hopefully you can get it done, I'm sure your dad would be proud of you. If you need help with carbs, I have a video on rebuilding a Johnson/Evinrude carb th-cam.com/video/uOLwz2NZSMU/w-d-xo.html best of luck!
I got a motor that had a 20inch shaft and I needed a 25inch shaft. Sad to say I can’t replace the shaft to a 25ft the motor doesn’t low it. I was thinking a jack place would help. To go down about 4 inches.
I know this video is old Joe but im about put the same plates on my 69' 13' footer. Why didn't you move the riser plate up with the lower holes thus not going with the 3rd hole on the engine? @3:19 it looks like you could have move it up one hole. Just wondering. Very helpful video!!!
I had to look at the video and think about that but came to the conclusion that if I had lifted the plates up to the lower holes, I would not have access to bolt the lower engine slot. If you look at 3:24, you can see the hole on the plate lined up to the very top of the slot on the engine mounting bracket. At 3:31 I drill through the transom at that hole.
I mounted the plates to match the curve in the transom, when I mounted the outboard to them there was a small gap because of the angle of the outboard relative to the plate. I torqued the mounting bolts to spec and did not have any issues. Hope this helps.
Gday mate this is a ongoing debate as to where you should mount your cav plate on an ali boat they say it should be level with the hull , on fiberglass they say it should be 25mm low this is a question that i dont think will ever have a definitive answer , at least you can get your cables of the controller mine the previous owner used stud lock on the screws yes stud lock now to get the cables out i have to drill the heads of the screws at the back ,never have i had a problem with screws coming loose on the back plates cosequently i have bought a new controller .
Mine was a bit different in that it had a Jack plate which with the angle of the transom, set the motor back a few inches. I tweaked the height by mounting a gopro and capturing video of where the anti-cavitation plates when on plane. I ended up mounting it as high as it would go. Bottom line is you want the AC plates to be just above the water line when on plane. Clamping a gopro on the back certainly helped :)
hello I have a problem, a full throttle my the tip of my boat plunges into the water and I lean to one side, I think it's because I have my engine mount too low, what you think
That sounds like a dangerous condition. I cannot offer advice without seeing the boat and seeing what the conditions are when that happens. But you may want to try trimming the motor up some, just a guess but that might cause that. Otherwise, please have a pro look at it!
If you would have put a manual jack plate on there you could have adjusted the height of the motor off the jack plate without drilling a shit load of holes in your transom and you wouldnt have to take the motor off to raise and lower. lol
That looked like a pain in the ass for you, it would have been a nightmare for me. Still, I wish I was down there helping you guys rather than sitting here watching. Not that I would be much help to you....like.. ...holding the light... ...handing you parts..
Great video, will surely help a lot of people. I just mounted my jack plate and 90hp Yamaha to my restored 15 whaler today. Was great fun!!!
Glad it helped
The most informative videos are where you show the entire process, mainly ANY pitfalls the viewer MAY encounter. 😉 informative though! 🙂
Thanks!
I just bought a 22 ft bay boat with this same issue. You're video was very informative.
Glad it helped
Did you end up keeping that height? I've got one with a 1981 50hp evinrude on it that always had a problem getting on plane. Gonna take it out tomorrow for the first time in 8 years, hopefully figure out why.
Yes, I've kept it at that height. Perfect, gets on plane lightning fast and I can trim it up about 30% for max efficiency. I think that the riser plates set it back far enough so that I can safely go with that height.
Thanks! I'm thinking about completing a 13ft whaler me and my dad worked on. He recently passed so i haven't worked on it in a while. I just need to set up the controls but there might be a problem with the carb.
Sorry about your dad. Hopefully you can get it done, I'm sure your dad would be proud of you. If you need help with carbs, I have a video on rebuilding a Johnson/Evinrude carb th-cam.com/video/uOLwz2NZSMU/w-d-xo.html best of luck!
@Faye Edu Sounds good, let me know how it goes!
Cool man
Thanks!
I got a motor that had a 20inch shaft and I needed a 25inch shaft. Sad to say I can’t replace the shaft to a 25ft the motor doesn’t low it. I was thinking a jack place would help. To go down about 4 inches.
I know this video is old Joe but im about put the same plates on my 69' 13' footer. Why didn't you move the riser plate up with the lower holes thus not going with the 3rd hole on the engine? @3:19 it looks like you could have move it up one hole. Just wondering. Very helpful video!!!
I had to look at the video and think about that but came to the conclusion that if I had lifted the plates up to the lower holes, I would not have access to bolt the lower engine slot. If you look at 3:24, you can see the hole on the plate lined up to the very top of the slot on the engine mounting bracket. At 3:31 I drill through the transom at that hole.
I am working on a 13 whaler as well. Almost identical shape, was there any issue in the mounting of the jack plate with the curved transom?
I mounted the plates to match the curve in the transom, when I mounted the outboard to them there was a small gap because of the angle of the outboard relative to the plate. I torqued the mounting bolts to spec and did not have any issues. Hope this helps.
@@ExtremeDIYGuy Do you happen to have a link on the jack plates you purchased?
@@stevenrturner Hi, yes I do. It's an affiliate link amzn.to/30d9cHi
@@stevenrturner yep, Here is an affiliate link
amzn.to/3oGgLQG
@@ExtremeDIYGuy Thank you much, making progress, about to apply the barrier epoxy primer, and paint!
Goodjob
Thanks 👍!
what throttle cables would I need? I have a 25 yamaha and what length cables did you use
Honestly, the cables came with the controller and engine so I did not buy them. But 8 ft seems to be the consensus on the forums
nice
Thank You!
Gday mate this is a ongoing debate as to where you should mount your cav plate on an ali boat they say it should be level with the hull , on fiberglass they say it should be 25mm low this is a question that i dont think will ever have a definitive answer , at least you can get your cables of the controller mine the previous owner used stud lock on the screws yes stud lock now to get the cables out i have to drill the heads of the screws at the back ,never have i had a problem with screws coming loose on the back plates cosequently i have bought a new controller .
Mine was a bit different in that it had a Jack plate which with the angle of the transom, set the motor back a few inches. I tweaked the height by mounting a gopro and capturing video of where the anti-cavitation plates when on plane. I ended up mounting it as high as it would go. Bottom line is you want the AC plates to be just above the water line when on plane. Clamping a gopro on the back certainly helped :)
hello I have a problem, a full throttle my the tip of my boat plunges into the water and I lean to one side, I think it's because I have my engine mount too low, what you think
That sounds like a dangerous condition. I cannot offer advice without seeing the boat and seeing what the conditions are when that happens. But you may want to try trimming the motor up some, just a guess but that might cause that. Otherwise, please have a pro look at it!
Hi! What lenght and thickness on the screws to fit the throttle handle? You Said 360 stainless steel?
I'm pretty certain they were 1/4"-20 x 3" 316 stainless
316 ss
What did you paint the outside of your skiff with
Interlux Perfection two part polyurethane. I have a video in the series on that as well. th-cam.com/video/MYR2WIjByrA/w-d-xo.html
So you never made any mention of the height of the bottom of motor to bottom of hull
👍
👍
If you would have put a manual jack plate on there you could have adjusted the height of the motor off the jack plate without drilling a shit load of holes in your transom and you wouldnt have to take the motor off to raise and lower. lol
I was down to bare budget at this point! But I get what you're saying!
That looked like a pain in the ass for you, it would have been a nightmare for me. Still, I wish I was down there helping you guys rather than sitting here watching. Not that I would be much help to you....like.. ...holding the light... ...handing you parts..
Any help is better than no help