1972 Johnson (JohnErude) 25hp Outboard Motor Lake Test

[@stephenwinter8892]

Thanks for sharing your videos I am watching from southern Ontario Canada

[@oldjohnnyrude8404]

Thank you for watching! 🙂👍

[@stephenwinter8892]

My family owns an original 1960 evinrude 10 hp attached to a cedar strip boat built by my grandfather

[@oldjohnnyrude8404]

@@stephenwinter8892 That's a great motor and it sounds like a great little setup. 🙂👍

[@johnmccrea8106]

That is a strong runner!! You did a great job on it. Thanks for the ride along. It was great!!!!

[@oldjohnnyrude8404]

This one is pretty strong. It runs great. Thank you! Looking forward to getting my '71 Evinrude Sportster rebuilt woth a new crankshaft and getting it back on the boat too. Glad you liked the ride along. Thanks for watching!

[@edhein8299]

You have a beautiful day there my friend!

[@oldjohnnyrude8404]

Yes, it was a gorgeous morning here today. Light breeze sunny and about 80 degrees. 😎👍

[@marksmith4582]

Wow. What a good running 72 JohnErude! That scoots right across the lake! Sounded good also! I appreciate your videos! After 90+ degree days last week, we’re back to more normal springtime temperatures in southeast Iowa! Just 72 today for a Sunday. 77 tomorrow on Monday. Have a great week ahead! Mark in Iowa.

[@oldjohnnyrude8404]

Thank you! This one does run well. I believe my fuel issue today was a result of a bad O-ring seal in the pickup tube in the fuel tank. I will see how it does on the next outing. Our weather has been similar. Upper 80s a lot last week. It was a gorgeous morning this morning. Getting storms again this afternoon. Back to normal spring temps here this coming week also. Thanks for watching, Mark!

[@peteryeung111]

That was awesome Ben! Love the camera angle and video. Cheers!!

[@oldjohnnyrude8404]

Thank you and thanks for watching! 😎👍

[@waynerowlinson6177]

It looks like that motor was giving that boat all it could handle. Nice to see the tether switch on your wrist. As usual, thanks for the video.

[@oldjohnnyrude8404]

Well, it got a little hippity hoppity innthe third trim notch, but other in the second hole it settles right down and does great. It is a strong runner. I'll eventually get my trim tabs designed and mounted. We'll see then if I can get a little more out of it. I do use the tether kill switch whenever I have a motor on this boat that is set up for it. I like having the kill button mounted on the control box bracket too. As always, thanks for watching!

[@billglennon8586]

Wow, what a flyer! Amazing the difference one click in trim can make.

[@oldjohnnyrude8404]

This motor is a good runner and is pretty quick. There is definitely a big difference made by a trim pin position. I knew 3 holes was going to be a bit much. I normally run in the second hole and it can be right on the edge of porpoising. I am working on a design for adjustable trim tabs on this boat. Once I have those installed, I should be able to run in the third hole and get the hull out of the water a little more. I may be able to get this thing above 30mph yet. Thanks for watching, Bill!!

[@billglennon8586]

@@oldjohnnyrude8404 you sure will Ben, adjusted right loads more speed. Only thing to watch with trim tabs is a big following wave, at slow speed, say trolling, or when you throttle off rapidly.. the water can land on those tabs and load some water over the stern.

[@oldjohnnyrude8404]

@@billglennon8586 yes, they absolutely can assist in pushing the stern down when the following wave hits the transom. Mine will be pretty small and short on this boat, but it is most certainly a factor.😉👍

[@miketh2436]

Another great motor saved and running great! I had a 20 Evinrude a few years back and it ran pretty fast!

[@oldjohnnyrude8404]

Thank you. Yes, the 20s and the '67-up Evinrude 18s (difference in HP designation I believe to only be marketing) were very strong runners. My main power on this boat has been a '67 Evinrude Fastwin 18hp since I have had the boat and motor finished. It is a great runner and almost as fast as this 25 woth a better idle. Thanks for watching!

[@johnmccrea8106]

That was great!!! Thank you for the ride along!!

[@oldjohnnyrude8404]

Thank you and thanks for watching!

[@labradorguy5311]

Interesting! I've been working on a similar motor most of the winter. One of these days when I get feeling better it will be on the water I hope. I have an 11"p propeller for mine. I hope it runs as good as yours. Thanks for posting! dale

[@oldjohnnyrude8404]

I hope you get to feeling better soon. I didn't know you were not. I hope you get your 25 on the water soon as well. The 11P prop proved to rob some performance and top end from this motor. It did the best woth a 9x10 with me in this 12 foot boat. 9x9 would be a good choice with a load. That cut 2mph off the top speed but the holeshot was impressive. Thanks for watching, Dale!

[@skiphinson8620]

Fantastic run !

[@oldjohnnyrude8404]

Thank you and thanks for watching!

[@nhwine]

Nice motor. I have two of the same, one long one short and hoping to get one of them running this summer.

[@oldjohnnyrude8404]

Thank you. Good luck withnyour motors. They're well worth the effort to get tuned up and running. These 22c.i 25s are screamers. Thanks for watching!

[@lesabre1972]

I remember the feel of those older shift boxes.

[@oldjohnnyrude8404]

I have these two lever control boxes in all my boats with controls except my pontoon. They work very well. Thanks for watching!

[@donparker8246]

Great running motor. Sounds awesome too. 😁👍

[@oldjohnnyrude8404]

Thank you and thanks for watching!

[@rickbokern4179]

Nice job!! I have a 25hp that's very close to that. It's the Johnson 50th Anniversary edition. Electric start. I need to get it back on the water.

[@oldjohnnyrude8404]

Thank you. I'm not sure what the feature is that makes one a 50th anniversary since 1972 was the 50th anniversary of Johnson Motors, but I have seen a special marking or medallion on some of them which mine does not have. Yes, you should get it back on the water. They're excellent motors. Electric start would be nice, but on this boat I don't have switch wiring for electric start anyway and it starts quite easily. I could convert it, but I probably won't. Thanks for watching!

[@DCTaylor281]

Nice setup! Notice you have a bunch of props in the boat. What prop is working the best for you? I have a similar setup only I’m using the tiller.

[@oldjohnnyrude8404]

Thanks! I really like this setup too. With me alone in this boat, the best performing prop that I have is a Michigan Wheel PJ18 aluminum 3-blade prop. 9.25" x 11P. I have a Michigan AJC417 2-blade that I want to try, but it needs to be re-hubbed. The PJ18 is my go-to prop for any of my 22c.i. OMC motors though. Thankfully that prop is still being produced. I dont remember what the part number is for it. It doesn't say PJ18 anymore but there is a current production 9.25x11 Michigan prop though. Thanks for watching!

[@DCTaylor281]

@@oldjohnnyrude8404 really appreciate this info. I’m going to freshen up my 74 Johnson 25hp this winter and I think it’s time for a new prop.

[@oldjohnnyrude8404]

@@DCTaylor281 You're welcome! I have the '71 Evinrude 25 I ran on this channel going back together after replacing the crankshaft due to rodent pee corrosion. Really looking forward to getting that one back on the water this season. Best of luck with your motor!

[@chuckcecconi8801]

I have a question for you Sir.. I just picked up a Johnson QD-14A 1953 10 HP.. it's already coverted to the fuel pump system. I'm looking for lower unit seals kit.. I can't seem to locate one.. I got the motor, old pressurized tank, and a spare prop from the original owners son.. and in put would be greatly appreciated. That Motor sounds healthy as do all of yours do...

[@gregbastin3609]

Excellent! I have the same outboard on a 14ft trihull. Where can I get the steering assembly? I have the pulleys. What throttle system are you using? Thanks, Greg. Saint Cloud, Florida.

[@oldjohnnyrude8404]

Nice! They're strong motors for only 22 c.i.. I built most of my steering in this boat. You can buy steering wheel assemblies with a drum attached used on ebay or sometimes Craigslist and Marketplace. Swap meets are also a good source. I bought my cable in bulk on a spool. I did a video on the build of this boat on this channel if you want a closer look at what I did. I'm using a 1970s 2-lever Evinrude Simplex control box. Thanks for watching!

[@lesabre1972]

boy, she moves right along!!

[@oldjohnnyrude8404]

Yes, she does. This motor has pretty good grunt. It's a nice runner. Thanks for watching!

[@badgerbob2226]

nice run. it makes my want to git the ol rd 17 and run it for a lap or two.

[@oldjohnnyrude8404]

Shoot, that sounds like a plan! Bust that old girl out and giver a rip. It would probably enjoy the ride as much as you do.😉 Thanks for watching!

[@LansingLawnServiceLLC]

I have a new to me 1972 Johnson 25hp. Mine goes nowhere near a speed of 28 mph. Mine only goes about 10. Any suggestion on why it might be running so slow? I also feel like the rpm’s aren’t going nearly as high as they should be.

[@oldjohnnyrude8404]

@@LansingLawnServiceLLC Congratulations on your new motor. If you're only getting 10mph and the RPMs aren't coming up, my first suspicion is that it is only running on one cylinder. Check both plugs for spark and see what you find first. Thanks for watching!

[@brianarvai5254]

I have a 50 horsepower version of this motor. Do they have the same carbs. Mine ran great but started bogging down and now will only run for a few seconds before putting out

[@oldjohnnyrude8404]

The 50hp uses a completely different carburetor than the 25hp. Does the primer bulb stay firm on your motor when it stops running? Will the motor pick up and run again if you pump the bulb as it is starting to die? I'm just wondering if you have a leak in the fuel line that is sucking air or the fuel pump is failing. If the carburetor is the problem, it may need to be rebuilt. Rebuild kits are available from BRP Johnson/Evinrude for these.

[@donk499]

Thanks for trimming it back down, was getting sea sick watching the video! Sorry about the damn cover screw, that sucks. That old dog really does run nice, especially at idle, which is unusual for this vintage with that crummy recirc system. She really howls at WOT, wondering if it could handle an 11" pitch prop, although the 25s do run better when you let them wind up. Let's see come close ups of the starter and tiller grip, are you going to make these for sale?

[@oldjohnnyrude8404]

Yeah, she was a little bouncy in the third hole. I was bummed when the tab broke out of the old housing. It turned out OK though. I does suck, but I managed to find a replacement midsection at Tomahawk last summer in the donation pile. I gave $5 for the housing I replaced the original with. It's blue and faded, but I don't mind it. You're sure right. These recirculation circuit 22 c.i. motors definitely suffered idle quality over the earlier ones. This motor is going to see some use this year. I'm working on a replacement cover with custom graphics. The original cover will be kept original for this motor though. I tried a PJ18 9.25x11P 3 blade and performance suffered a bit. These things like to scream. The 9x9 was not enough pitch and the 11 was a little much. The 9x10 seems to be the sweet spot. I have 2 more 2 blade props.to.rry on it just for grins. The SMC42 seems to.be the hot ticket though. Thanks for watching!

[@oldjohnnyrude8404]

I will give a closer look at the pull handle and the tiller grip in my next video. I plan to see if there is sufficient demand for the starter pulls. I have not decided to offer the tiller grips for sale yet. I like them, but they take a long time to print when done at a quality level I care for. It is possible I may offer them in some limited numbers. I have started a small cache of parts that I have modeled and can manufacture. Some carb knobs, choke pulls, cowl bumpers, rope plate and face plate grommets for 50s Johnsons, etc. that I will offer for sale at some club meets to test the waters a bit. Right now, I have the face plate grommets for the 5.5s, the 10/15/18, and the RDs. Still working on the 7.5.

[@donk499]

@@oldjohnnyrude8404 Cool. I realize this is a very time intensive endeavor, and there are too many pieces parts that dilute the demand, making it tough to realize any sort of profit. But, I will certainly purchase some of the stuff for 58 Evinrudes in bulk to help cover your time and effort. Hope to talk more about this later. Don

[@aaronstarlund8450]

I got a 1974 johnson 25hp has 120psi in both cylinders so I started fixing it up. All new ignition system, fuel pump rebuild, new fuel lines, carb rebuild, top crank gasket. So today I did a test run on it and it’s purring nicely but I noticed oil/gas leaking out from (fuel pump side) crank case seam between the two half’s. Ever have this problem? Should I tear down and reseal or find a new power head? What kind of sealant should I use if I do? Thanks!

[@oldjohnnyrude8404]

Yes, inhabe had this problem and yes, the crankcase should be split and resealed. Leaking crankcase causes poor idle, lean running condition, inconsistent performance, potential engine damage, and a mess. Split it, clean it up, and reseal it. I use a thin coating of TreeBond anaerobic sealer on crankcase halves. Good luck with it. It sounds like you're almost there and it will be a good one when it's done. Thanks for watching!

[@aaronstarlund8450]

@@oldjohnnyrude8404 ok thank you! I have loc tight 518 will that work? Should I replace lower crank or any others seals while I have it split in half?

[@oldjohnnyrude8404]

@@aaronstarlund8450 I would say the Loctite 518 should work fine. The lower crank seal in these engines is a carbon seal eoth an internal O-ring. As long as the carbon seal is not cracked you can safely leave it alone. If it is cracked, it will need to be replaced along woth a new O-ring. It is held in place with a spring, washer, snd snap ring. The carbon seal is very brittle so be careful if handling it.

[@JB-dy3mi]

I have a 1996 16' Landau V-Hull that's decked with 1971 25hp Johnson. With 45lb trolling motor attached I went 17mph this weekend on second test. Motor was short shaft and wouldn't go faster than troll. Put 5" shaft extension on for about $250. Prop is 9x9 and a bit chewed up. Trying to decide what new prop to get. A little more top end would be nice. I only tried first and second trim holes and no porpoising. Second time out no trolling motor. Didn't seem to gain any speed from first to second hole. Rear transducer is throwing a rooster tail. Not sure how much that would reduce speed.

[@oldjohnnyrude8404]

I am not very familiar with your boat, but being it is a 1996 it is most likely a 20" transom. The issues you were having seem to reinforce this. I would consider 17mph about right for a decked 16 footer with a trolling motor and a battery running a somewhat abused 9x9 prop. Depending on how much weight you have toward the bow, you may get away with another notch of trim. If you're getting to full RPM with the 9x9 you may see some improvement in top end with a 9x10 but any more pitch than that and the 22c.i.. 25hp is not going to reach the RPMs where it is making its power. The transducer may be taking 0.5 to 1mph off your top end speed depending on how deep it is in the water. It takes some experimenting to figure out what works best. I hope this helps a little. Thanks for watching!

[@JB-dy3mi]

Yeah, part of the fun is trying different things as long as you don't have to paddle home. Lol Appreciate the videos and info. I could try a new prop or put a 40hp 1966 on it for $500. Decisions, decisions.

[@chuckcecconi8801]

I have a question, what's that black plastic thing that prevents the engine from starting in gear.. I have a 1972 25 electric and pull start.. and would you know where I can purchase one . Thanks in advance

[@oldjohnnyrude8404]

That part is called a Lockout Lever. Marineengine.com has them in stock if you're interested in buying one. Here is a link.www.marineengine.com/newparts/part_details.php?pnum=OMC0385653 I don't care for them myself. I have removed more than I have replaced. I just make sure I don't start the motor at high throttle settings in gear when it is on the boat. Those are still available if you'd like to replace yours, however. Thanks for watching!

[@chuckcecconi8801]

@@oldjohnnyrude8404 thank you.. I really appreciate it.. I really enjoy watching your videos, I've learned a lot from you sir

[@oldjohnnyrude8404]

@@chuckcecconi8801 you're very welcome. Thank you for watching and I'm glad you enjoy my content.

[@Jefkoz8899]

Another nice running motor. Are you using standard PLA for your 3D printed parts?

[@oldjohnnyrude8404]

Thank you. For my functional 3D printed parts I am using mostly PETG for hard plastic. The body of the starter pull is TPU 95A and the rope anchor insert is PETG. Thanks for watching!

[@Jefkoz8899]

@@oldjohnnyrude8404 Awesome, thanks

[@slimquinn5692]

Love them Ole 25’s but those shear pins are a lot of work down here with all the stumps.

[@oldjohnnyrude8404]

Yeah, that can be a pain. A square drive rubber hub on a splined prop shaft is definitely a more desirable option for that situation. I boat in a few places with stumps and submerged logs. I have been pretty fortunate to have not sheared too many pins or ruined too many props. I have buried a few in the sand and gravel lake bed and done a number on them. "Keep your prop outta the mud!" Do as I say, not as I do. LOL. Thanks for watching!

[@justin423jb]

Would you be interested in a 1963 Johnson 10hp that runs great, needs paint.

[@oldjohnnyrude8404]

I guess that completely depends on price and location. I have two '63 Evinrude 10s now. I don't really need it, but they're good motors.

[@justin423jb]

@@oldjohnnyrude8404 located in whitwell tn, and I’m open to offers on it.

[@oldjohnnyrude8404]

@@justin423jb It's too far away for me, but I'm sure someone will buy it. They're great motors. Thanks for the offer and thanks for watching!

[@nabox1435]

What speedometer do you use? Looks to be a beautiful day

[@oldjohnnyrude8404]

I use a Meilan Mini GPS speedometer. I have been happy woth them. I have two of them. It was a gorgeous morning. Thanks for watching!

[@donaldswider3858]

28 mph? From that view it looked about 78 mph.........another fine one Johnny rude

[@oldjohnnyrude8404]

Yep, it was showing 27.9 on my GPS speedometer. It does look like it's hauling. Thank you and thanks for watching. This one will make at least one or two more appearances. I'm working on another cowl.with custom paint that will probably show up next time.

[@donaldswider3858]

@@oldjohnnyrude8404 custom hope you put that one up would love to see it

[@oldjohnnyrude8404]

@@donaldswider3858 I definitely will. I'm still working on decals and finishing paint. It's getting close. 👍

[@edhein8299]

The forward view looks like you are doing 80!

[@oldjohnnyrude8404]

It feels like you're scooting along pretty well in a 12 foot aluminum boat at 26-28mph. I will eventually get this boat to be able to hit 30mph. Hopefully consistently. Thanks for watching, Ed!

[@dffc3418]

2:08 artísticas son unos mikujava.Monster mamuchas y uno buen ejercicio.2:08 5:25 Se deja ver qued hay muy buenos resultados ❤

[@chuckcecconi8801]

That thing hauls ass

[@oldjohnnyrude8404]

Yeah, this thing gets with it pretty well! Thank you and thanks for watching!!

[@trainroomgary]

🚣🏿 Cool fix it story & Hi from Middle Straights Lake 😎

[@oldjohnnyrude8404]

Thank you and hello! Glad you liked the backstory on this motor. Thanks for watching!