How do you change water pump in a classic 50 1987

I have a 1978 model 200 20hp with electric start. I was wondering if your twist throttle springs back to an idle if you let go? Mine does not and I don’t see how it would be able to in these years. Thanks!

I just did all this. My black wire on the trigger didnt make any volts while cranking I’m assuming it’s bad. Very helpful video sir

The flywheel doesn’t have a keyway?

Great video!

Hello! I would like your help.I have a mercury 40 2t classic 1993 I have two questions, does it have a thermostat? And in case the impeller doesn't work could I set an alert to see it before the engine starts? Thank you!

So what was the problem with no spark

where did the get that fuel line

So I also have a bad CDI all my wires are very corroded. I know this was an older video, I tried to look for CDI on eBay looks like you can buy them for around $50.00 idk if they are that cheap because they are aftermarket?

You probably already have your pressure washer fixed by now, BUT OK! Yes i have a TroyBuilt i bought Refurbished from Sears in 2010 AND IT HAS BEEN A GREAT MACHINE!!! Well last year it just went KA PUT on a job i had to finish, So i figured it was time to R & R the pump. When i took the pump off i quickly discovered there was a problem THERE WAS NO KEY. so i figured just go to ACE HARDWARE and pickup a small 1/4 inch X 1/4 inch key square stock, Well when i went to install it the pump STILL turned and was DEFINITELY not ENGAGING with the engine. I was stumped for about 1/2hr. when i finally RELIESED that one side (that engages engine to the pump) HAD TO BE LONGER/THICKER by about 1/16 of an inch to 1/8 of an inch. So i grabbed my mig welder and piled on the material (VERY CAREFULLY) then when i was done i grinded the taller side of the key flat and installed on the shaft, BUTT the key would NOT SIT still when i wanted to install the pump on the engine shaft SO i tack welded the key on the engine shaft. aaaaannnd WA LA the pressure washer finished the job!! and has worked ever since. PRAISE BE TO GOD!!

If you get a chance, or even want to, I got this, no DVA tester, just an old fluke multi-meter; Testing the Stator; Rd/wht to Rd : 67.5 ohms Blu/wht to Blu: 7460 ohms Rd/wht to Rd; 21.86 volts AC while turning over Blu/wht to Blu; 253 volts AC while turning over Trigger wiring; White to Purple; 846 ohms (while disconnected from switchbox) Why w/blck to Brown 850 ohms (also disconnected from switchbox) All connections to ground were "OL" or 0 ohms. Blue wire on right side to white on left side; 300 volts Blue on right to ground 136 volts Red to Blue 112 volts Red to Ground 25 volts Since I don't have a "DVA" tester, not sure I can trust my results for the rest of the test...It may be my next purchase. Thanks for all the help livetofish Outboard Repair!

hello friend do you know what is the normal engine temp in this engine? also what do you think of this compression test 120psi 122psi 119psi

having some problem myself with my old engine, is it possible for you to send me the link for that sheet with all the powerbox/trigger/stator values? Much appriciated

What year is that motor? it's exactly same motor as mine but i coudnt read the serial numbers on mine

Where did you purchase the rebuild kit for the carbs?

Is there a way you can attach the pages you used for troubleshooting?? I have a hearing issue, and I have a hard time decerning exactly what you are saying a lot of the time during this video.

Only thing to note is when you do things like this, you need to let the pcm relearn. You basically let car idle 15 mins. Then a 20 minute drive to relearn shift points. There's videos that cover this .

I admire you for figuring it out. We could not get ours going, ordered a replacement pump and it has a sheared off brass bolt right out of the box, Of course we could not tell that it was until it was installed and cranked up and bluey! The bolt head flew off! We're sending it back, get a replacement. I am so sick of that pressure washer. It was my bright idea to try and repair it, now I want to forget the whole thing. :(

I have a problem with my 25 hp Mercury 2-stroke engine. It is pulling the transmission oil towards the exhaust and in addition to that, water is entering the transmission. What could be causing this?

You and this video were great company when I ate my dinner. And it helped me understand how to clean the starter for my bote motor. Thanks for this video :)

Any of you guys in the close proximity of Lansing Michigan?

AMAZING! I'm looking to accomplish the same thing. I have a 1967 Johnson Super Seahorse 80 Electramatic One guy told me to get rid of that dinosaur and find something newer to tanker around with. Went to the UPS store in Lansing Mi to deliver a package and the clerk says don't get rid of it. Work on it and in the end you won't regret it. So here I am.

Enjoyed the diagnosis and repair,just got my first boat with johnson 15hp on it.for my retirment but the first two trips to lake was a bust,and your gray hose is dam straight up junk hose,exactly as you said that inner liner a very flimsy film more or less was torn at fitting n blocking flow.couldnt figure out on lake but when got home i did as you kept cutting till i got hard bulb it ran fine at home.second trip to lake started up fine coughed and died,found no spark at both plugs it was cdi-unit but putting that on i found the carraige bolt holding motor to yoke was nearly rusted thru and rusted into alum arms.had to drill out stubs was seconds from disaster, motor would have fallen into drink.fixed all that then decided to repaint whole works.ive had the boat half a yr maybe get two months use if lucky.murphys law if it can go screwy it will!snooky pa.

Did you add any type of lubrication to the spring or pawls?

I put my pump back together today after replacing 3 check valves, that is when I noticed I had no keyway. I was lucky. I had some 3/16 th metal in the shop and made one. Got it together, and water went right through it out these two small channels on the head of the pump. It was getting dark and I was done for the day. Do you have any clue as what I did wrong?

I have the same motor. I have a question on the needle. Does your needle have a spring with it, if so, where does the spring go? I’m having a hard time finding the correct original schematic and parts for this motor. Thank you.

Im working on a 50 hp 4 cylinder classis fifty

The other vidoes give me the option to download but not this one.

Pretty sure it’s the spring

Thank you for this video! Is there a gasket or seal between the impeller housing and plate underneath? I have a 1962 manual shift version but I think it should be similar.

My 40 Mercury 1982 has same gear change and throttle mechanism. I'm having difficulty setting up the cables. Is it possible to change gear with one cable or do I need the second cable attached to the throttle in order for the gear change cable to operate? Thanks

Ah there's the part 6. Pesky Lil impeller shards can be annoying ;^;

Would you happen to know why my 85 does this?? when I go full throttle it will not get out the hole just slowly pick up speed then all of a sudden it goes full out fast sometimes it will just go slow the whole time I changed the fuel filter and spark plugs it ran good that day then the next it started doing the same thing

I have the same problem how did you fix the cdi wire ?

Really appreciate this breakdown! Rare to find your exact motor on youtube. Thanks for the help sir.

You didn't mention how much oil the lower unit needs

Good engines, but you will need more for that bow rider. I don’t even think that 75 will get it up on plane. In my opinion, you need at least a 150 for that boat.

Like the guy below said.....there is exhaust blowing into the water jackets somewhere. Most likely under the exhaust cover where the water circulates to cool the exhaust. I have seen a gazillion old outboards and chainsaws with scored pistons, that is not a heat problem. Heat WILL cause it but it will not generate heat . Low compression does not generate heat. That pressure from that tell tale hose is exhaust blowing into your water path, interrupting water flow and filling it with HOT exhaust......boiling, or near boiling, the little water that gets through.

I apologize for not understanding, when you put your 1973 85hp Johnson outboard powershift 2 back together again, my question is, when you put the lower end back together with the upper end, in what position do you put the shifting shaft,I've tried it in neutral and foreword and then back in reverse the way I took it apart, I can't get it to shift into foreword gear, need some advice

how did you know the bearings were seized and needed to be replaced? Even after the motor was started and a new seal was put on?

Hey i work right by where u are driving

I noticed you did not use any gaskets on rebuilding the impeller. I have a similar model with no aluminum housing that the impeller sits in or any gaskets. What is that stuff you were painting on where a gasket would go?

Im a boat mechanic up in kentucky, and I found this very helpful. Had a customer with a very similar motor of yours. Good to know that these specific merc series experience hot idle

How do I take the Lower unit off?? I have a 72 Johnson hydro electric shift. I guess it’s not like a regular outboard in terms of taking out the lower unit.

Friend, I bought a 1978 Mercury 200 20 hp long leg, I would like to know where the screws are to remove the leg or the system where the propeller is because I have to do some work on it, my gearbox is stuck, could you please help me?

Before I told my wife it was a boat she already had kicked me out of the house now I’m living on the boat

Can I contact u I have the exact motor done rebuild new coils,points,wires,plugs,rebuilt fuel pump,rebuilt carb,all news seals and water pump in lower unit but it will run but the issue is deaccearlion it wants to die and I can't keep it consistently running running

You caan get about any thing at Mcmasters and Catrr.

I have the same motor. Have fuel to the carbs, good spark when trying to start, good compression, no gas getting to the spark plugs. Was running great, was fishing and tried to move the boat. Started the engine back up, the motor revved high for a few seconds and died. Gas was had been leaking from the throat of the carbs when trying to start. Replaced 2 needle valves and reset the bowl height. I do not understand how the carbs are not getting gas to the plugs. Any help is appreciated.

How much gear oil does the lower unit take???