just bought one of these engines today...... its a 77 90 hp 6 cyl that currently has no spark but very happy to see you put out vids on how to fix that haha keep up the good work man
Great videos I have a 1982 115 merc just had carbs rebuilt it took three months and cost 1000 Got boat back. It ran good for an hour then back to bogging out now it won't start unless I put gas down the carbs its got fresh gas new gas lines new fuel pump I am completely stumped any suggestions would help thanks
Check your float levels. The fuel should bubble (possibly leak a little) out of the front brass venturi when the bulb is primed. If you hit that brass venturi with compressed air it should force/splash fuel out of the main nozzle in the middle of the carbs. Let me know. Son
buddy gave me a older boat with a 1978 90hp 900 tower of power. I wasn't sure if it was worth saving, every wire was rotted bad. I found a wiring diagram and after changing a bunch of short wires under the cowling due to rot. I got it running and boy does it run strong. I need controls and the lift mechanism does not work rams have water in them, the wires are all rotted not sure if pump works yet. I only have one working cowl clamp all the plastic ones are snapped. I need a good lower unit as well. Where do I get parts? would it be better for me to buy a parts motor or try and get everything off ebay?
I have several of these antiques but they give solid dependable performance, One question though, These flywheels are not indexed to the crankshaft, on my 1st engine I stupidly removed the flywheel ( even thought I marked it accurately. I though) and had to asemble and disassemble the engine several times before I got the right timing belt teeth engaged, You should do a video on this topic as I am sure others have had the same timing problem as I,
Bottom my trigger has yellow wires under it yours are black, anyway wires have melted rubber covers where the wires and trigger meet. Is that from overheating?
do you know where I can buy a few feet of the color coded wires for a merc 650 in the 2207872 series or 2872319? red, yellow, gray, black, salmon, white and brown?
Best channel I found for mercury outboards.So much detail. I have a 1972 1150 inline and it sounds like I’m having the same problem. My switch box has some spark but it doesn’t look like it’s enough/healthy. Is this ok?
remove the flywheel,and count the stator coils then divide by 2. you will have a setting on you tach with this number. ,just set it to that number, Tach has three wires one for power one for ground and one for sender. Ignore the mer book and hook the sende r wire to one or the other AC side wire terminals on the rectifier. Power being ignition.
Thanks for responding so fast I just pulled the grills off and there was nothing coming out of the Venturi's ??? I just pulled the grills off 2 assuming the bottom one is plugged as well so compressed air might unplug it?? Thanks for your help
Dang I have a 115 mercury serial number 6631678 I got for free from some lady down the street no spark only cylinder 3 and 6 have spark 3 has very little and 6 has A LOT of spark shock the crap out of me when I was grounding to see for spark any place to start I thought no the coils are good according to youtube
Groovy the way you work these engines ...aahhh what a sound snif snif i can almost smell the 2 stroke good job , keep it up
I am eager to work on my motor after watching you do all the stuff you do!
just bought one of these engines today...... its a 77 90 hp 6 cyl that currently has no spark but very happy to see you put out vids on how to fix that haha keep up the good work man
As usual, great piece of work.
Love the sound of them talking !!
Great videos I have a 1982 115 merc just had carbs rebuilt it took three months and cost 1000 Got boat back. It ran good for an hour then back to bogging out now it won't start unless I put gas down the carbs its got fresh gas new gas lines new fuel pump I am completely stumped any suggestions would help thanks
Check your float levels. The fuel should bubble (possibly leak a little) out of the front brass venturi when the bulb is primed. If you hit that brass venturi with compressed air it should force/splash fuel out of the main nozzle in the middle of the carbs. Let me know. Son
buddy gave me a older boat with a 1978 90hp 900 tower of power. I wasn't sure if it was worth saving, every wire was rotted bad. I found a wiring diagram and after changing a bunch of short wires under the cowling due to rot. I got it running and boy does it run strong. I need controls and the lift mechanism does not work rams have water in them, the wires are all rotted not sure if pump works yet. I only have one working cowl clamp all the plastic ones are snapped. I need a good lower unit as well. Where do I get parts? would it be better for me to buy a parts motor or try and get everything off ebay?
Both. Finding parts on a nearing extinct engine can be challenging. Exhaust all resources. Definitely worth the gamble. Son
Only took a few turns but damn she sounds good! 🔥 that thing would look real good on my boat😎
Nice job.. I have a Mercury 1350. I'd like to rebuild the carbs on it. Where do you get parts for these?
Marineengine.com
Sweet
Hey great video. I have a 1967 650 L4 that needs a distributor. I have located one out of a 1967 500 L4.. Will they interchange O K.
I believe so. You may need slight fabrication. Son
I have several of these antiques but they give solid dependable performance, One question though, These flywheels are not indexed to the crankshaft, on my 1st engine I stupidly removed the flywheel ( even thought I marked it accurately. I though) and had to asemble and disassemble the engine several times before I got the right timing belt teeth engaged, You should do a video on this topic as I am sure others have had the same timing problem as I,
I have a harness with a blue wire not sure where it goes any clue? An what does your choke look like on your dash? Is it part of the key ignition?
Bottom my trigger has yellow wires under it yours are black, anyway wires have melted rubber covers where the wires and trigger meet. Is that from overheating?
Trigger wires do not "overheat." The electrical current to trigger the capacitor is miniscule to the overall operations of the engine. Son
@@MerCSonL6 Hmmm, now I wonder why there is melting there. Even the plastic air screen filter in front of carb intake manifold is melted at bottom.
Mercson, any other ways to possibly check the trigger on a 71 800 80hp
th-cam.com/video/bj6BPYITstc/w-d-xo.html
Where do i get a coil and trigger for these i just picked one up
do you know where I can buy a few feet of the color coded wires for a merc 650 in the 2207872 series or 2872319? red, yellow, gray, black, salmon, white and brown?
Any marine grade wiring will work.
What plug wires do you use
Oem.
is there a way to test the distributor on a 1974 mercury 850?
Yes. I have a video on it. All distributors are 70s on are tested the same except the energizer which the 850 does not have. Son
Best channel I found for mercury outboards.So much detail.
I have a 1972 1150 inline and it sounds like I’m having the same problem. My switch box has some spark but it doesn’t look like it’s enough/healthy. Is this ok?
Yes. I would verify a faulty switch box first.
MerCSon L6 I also heard the click in the distributor when my fly wheel is tdc. Does this verify that the switch is getting power to the distributor?
@@JessiahsWorld
th-cam.com/video/ZNho8LajDDU/w-d-xo.html
Try the link above. It will tell you if your switch is bad. It's an easy test and can be performed while switch is still on the engine. Son
Just found the channel and enjoying it! I have a 84 (gold band) 90hp and I need to install a tach. Where would i begin to install one?
It needs to feed of the 1 of the alternator wires. It reads the poles. Son
@@MerCSonL6 ok thanks a lot!
remove the flywheel,and count the stator coils then divide by 2. you will have a setting on you tach with this number. ,just set it to that number, Tach has three wires one for power one for ground and one for sender. Ignore the mer book and hook the sende r wire to one or the other AC side wire terminals on the rectifier. Power being ignition.
Great video, but you need to include the way to test the trigger and switch box.
I have that in prior videos......
How can I get ahold of you? Have some problems with my 115 L6, be more than happy to pay you for your time.
Email?
@@MerCSonL6 what’s a good email for you?
@@greatlakesgutters9798 I do not prefer to put my email due to it getting flooded.... what's yours?
Thanks!
Hi, love this channel. I have a 1977-78ish 1150 with great compression, but needs work. where do you get your rebuild kits and parts? Thx.
Typically off Ebay. However, it does depend on the part you need. Oldmercs.com is a good site as well. Son
Thanks for responding so fast I just pulled the grills off and there was nothing coming out of the Venturi's ??? I just pulled the grills off 2 assuming the bottom one is plugged as well so compressed air might unplug it?? Thanks for your help
What do you do with these engines, I have a 70 merc 1000, we will rebuild eventually, doing a 95 2.5 currently
I have my fun with them then I push em down the road. 😉
Need to know how to wire five wire to universal
I have a 1977 Merc 150 if Ur interested in it.
Been stored for 10 years.
Zipcode?
Dang I have a 115 mercury serial number 6631678 I got for free from some lady down the street no spark only cylinder 3 and 6 have spark 3 has very little and 6 has A LOT of spark shock the crap out of me when I was grounding to see for spark any place to start I thought no the coils are good according to youtube
Compression. Make sure it has it has at least 120 per cylinder. Doesn't matter how good an ignition system is it will not run without Compression. Son
@@MerCSonL6 okay I'll check it out just gotta pick up a tester