The Red Band Cowls look the Best

I can smell the fuel through the phone…..awesome

Yeah, those things were never much for power or speed. But, will run smoothly, idle like a champ, for years to come PS: Did you figure anything out on the Evinrude?

I don't see a rainbow on the bridge ?

👍 glad I found ur channel n subbed ya ....

Nice little motor

ljepo ide

Great video Thanks

The best!

Good thing you had that old Johnson to get you back to the dock.

OK... A few things to consider here. First, that stupid air box and gasket must be installed properly or the engine will run lean at high RPM and stall out. But, in this case the engine kind of sounds rich. Now, that damn "primer" could be an issue. It has three positions: Off/warm up/prime.... Here is a case where OMC spent more money and made things much worse... When you pull that primer all the way out, it actually pumps extra fuel into the carb through that top hose (provided you have built up pressure in the fuel line with the fuel tank primer bulb). The warm up position just allows a little extra fuel to bypass the primer and help the engine warm up through that hose on top of the carb. And OFF doesn't allow any extra fuel into the upper carb hose. One of the big mistakes many owners make is pulling the primer all the way out, starting the engine, then forgetting to push it all the way back in after it warms up a bit. So, to rule out flooding/primer malfunction, simply pull the hose off the top of the carb while the engine is misbehaving to see if it clears up. Like I said, kind of sounds rich at high speed also. So, once the primer has been ruled out then we have to revisit that GD horrible plastic carb. You replaced that little rubber hose (idle circuit pick up) which is a common issue. But I am thinking you may have forgotten to reinstall that brown colored gasket under the white fuel pick up that sits at the bottom of the bowl. Think of the old style OMC carbs and that thick donut gasket that sits between the bowl nozzle well and carb body... Leave that out and it will probably run rich at high RPM because fuel is short circuiting into the main nozzle/bypassing the high speed needle. That brown rubber gasket on this newer carb serves the same purpose as that old cork donut gasket. Now onto the crazy sync process on this engine. Gone are the days of the throttle valve being completely closed at idle...See that screw/spring above the metal throttle arm on the carb?? That is the throttle cracking screw. I forgot what the initial setting is, but the throttle valve on these carbs is actually held slightly open at idle. There is no hash mark on the throttle cam because it is suppose to be set so the cam starts pushing the carb open immediately when the throttle is advanced. There is actually an idle timing setting on these engines, see the little moveable idle timing stop on the left side of the powerhead? I'm guessing you did not mess with that so probably do not have to worry about that setting. I have forgotten just what the initial idle mixture adjustment is as well. But, it probably from what the manual says because it looks like that plastic top on the carb has been replaced. The actual syncronization process for this engine is quite "involved", way too complicated for sure. Finally, you reported that that cheesy adjustable plastic cam was broken and you cemented it back together. Are you sure the carb is opening up properly at WOT?

It runs as nicely as it looks!

I need to visit scrap piles in your area! These were actually real nice engines in spite of some horrible engineering flaws.

Mechanics have told me that 100:1 ratio is ok if you use your motor a lot. If just occasional use, better go 50:1. Both excellent motors. Have had both. With proper care either can last a lifetime. Hard to criticize either!

I remember the point onmy mini van yhey didnt like the rainy days how is this set protected

That one looks awesome. Nice save

All tree huggers are a bunch of liberals that don't have anything else to do...

I would agree. OMC would still be in business if this exact engine could be produced today! Rugged, reliable, smooth, and simple to repair. The Evinrudes of this vintage were actually a 7.5hp, which is a completely different powerhead with its own noises. Perhaps it is just the audio quality, but yours almost sounds like it has an exhaust leak somewhere. Yeah, these were a little louder than later ones, but this one seems like it has an exhaust leak.... Loose/leaky exhaust cover perhaps? Nonetheless, yours is a beauty. These engines have an low idle quality that would compete favorably with any of today's dumb ol four strokes.

Sounds great! Beautiful motor! Can’t wait to try mine out! I think yours is a 1955. In 54 they were green with a grayish stripe and 55 was green with a whitish almond stripe then 56 was when the red and white came out!

Hi, maybe a 55 or 56 not positive but, I think they change the color in 57 to that maroon red. Then they add a fuel pump so, no pressuring the fuel tank. They do sound different from an evinrude. It could be from the design of the cowling.

Well done. Good job saving it. It is a little noisy, interesting?!

I'm curious about the weight difference I've been running the old style my whole life. My favorite small motors by far. I have several. The one I run now is a 1990 9.9 Johnson with a 15 horsepower carburetor. It has the sound dampening foam in the cowl. Sounds great. Starts second pull cold and first pull hot every time.

I was able to get about 21mph using a 1991 Evinrude 15 on a 14' aluminum boat. Also 20mph using a Mercury 15 on an inflatable.

Looks like the Pacific Northwest Puget Sound. Tacoma?

I dont smoke the crab pot anymore, makes me too angry.

thankyou for doing this

I have the johnson copy of that motor. About 750 hours and still is great.

Thats one cool design 😎

The merc is much newer.

At 57 I can relate to the story of you and your dad, my story is very similar but was with my grandpa and his 1962 Evinrude Sportwin. He let me take the tiller when I was 5 or 6 and it is a memory that is burned Forever in my mind. That started a lifelong hobby with boats and vintage outboards that still is with me today. Two strokes Forever! Great video.

Hi from Ireland, fantastic video, very interesting

Nice set up.

Yes it is a rotary valve. It also has a resonator in the exhaust which gives it a unique sound. i have been running 2 of them for two years now. Very cool underated motor.

So the Evinrude 15 pushed this setup at 27 mph and the yammy could go 25mph. Both are impressive for that horsepower.

Is that a 12’ boat?

What is the model number on the 9.9 ?

Good bike! I love the original bike!

I’m glad you ran it with both. That’s what I wanted to see, but wasn’t sure if you were going to. The Mercury got it in plane barely. The OMC couldn’t quite do it, needed a little more power or setup maybe. Great comparison!

*The Johnson/Evinrudes were legendary rock solid motors ... **_That couldn't hold a candle to a Merc._*

*_As great as those Johnson/Evinrudes were. And they were. There was just something special about a Merc... My_** Mark 75a **_ruined me for life._** hahaha LOL*

Sounds great man. You were flyin too!

Awesome motor. Is it a twin cylinder engine?

So 9.9hp is about 24% more power and its about 24% faster. That couldnt be any more perfect.

Wow beautiful motor!

Love the content it's awesome

Hi, beautiful bike . Good watch. PS you said the airbox was the toolbox.. Ha ha. Thanks for your time, keep up the good work.

Could you explain why Mercury had, for example, a 50 hp engine listed as a 500?

Have a 12hp Hangkai 2 stroke that gets my 10.5 Bris inflatable to 18mph

Greetings from southern Ontario Canada I don't have the issue yet I'm single but I have a 1965 Johnson outboard 18hp and a 1974 chrysler outboard 10hp both on opposite boats

This is Not a Test ... So you tested the first motor with all other motors out of the water but you tested the second motor with the first dragging in the water? ... what are you american?