Thanks for thr vid! I'm just working on a 115hp the same as yours now, I removed it to replace with a 100hp due to the 115hp having trouble starting. Had someone break into my shed and they cut all my wires and ripped them off.. now I'm trying to re wire it completely and your vid is going to be a big help!
Hi Andy, that's terrible what they did to your motor. I hope my video helps you. I have others on my page that may help you as well, pics from different angles. I had not had any problems with starting until the stator went bad. It did have problems with the motor dying when I slowed down, but that was years before the stator went out. With the stator, the motor would start when the engine was cold from being in the garage. On the lake it wouldn't start at all, or only with extremely long cranking. Even then it would die if the RPMs were below 1200.
Hi I have the same motor and have changed the stator, I have a bit of play on the trigger I cant remember if I had that before, it moves as it should do but it seems a bit floppy in there when I move the throttle, do you know if that would cause any issues with the timing,
Hi Gerald. I'm just a guy who's mechanically inclined. I pretty much follow the service manuals when I can. I would say that it's probably going to cause a problem since the trigger is what sends the spark to the spark plug. Was the trigger loose when you took it off? Can you see where the play is? It's been a while since I did this repair but I know I would have noticed if it was loose. Is it seated properly? Still using the screws that it came with? My local outboard shop has been helpful in the past. Look for a local Mercury shop and give their service department a call. Sorry I can't be of more help.
@@richward2288 Hi I have just looked at it again and it has aprox 1/8 inch up and down movement, I cant remember if it had any before I removed it all, the engine runs but doesnt seem as happy as it used to be, there are no screws that hold the trigger inn place, it did have some grease/oil residue on the bottom of it when I removed it, maybe that held it down and stopped it moving up and down, I did all this as I had a missfire, that has now been fixed, I replaced the stator and the switch bow both CDI parts
@@geraldoakley7688 I'll look at the manual and see if it says anything. I don't recall taking mine off so you may be right about the grease. I do know that with the CDI stator and OEM trigger the rev limiter would shut down the motor at 5,000 RPM. I had to disconnect the rev limiter so I could reach the 5250 RPM.
Nothing special in the service manual, just put the trigger on, connect to the link arm, connect the wires to the switch box and then install the stator. When I put my stator on I put it in exactly the same spot as the old one, with the wires in the back (looking down from the top, about 11 PM) and coming down the side of the block as shown at time 26:40. I did not have to time the motor and I get the full 5250 RPMs at WOT, same as when the OEM stator was on. What RPMs are you getting? My boat is a 17' Ranger R72, fiberglass, twin windshield.
@@richward2288 I put everything back as I took it off, the only thing I did was to remove the grease/oil residue on the bottom of the trigger, I have always been able to get 5250 RPM no problem I dont run it at this rpm often, just every now and then for a few seconds as I figure it's an older motor and cant afford to damage it, I have a 16 foot Glastron Siera, we use it for skiing so i have a 19 pitch prop so it gets the revs up pretty quickly. my issue now is it will not start unless I give it a lot of throttle, it will not start when warm by just turning the key, I have to give it a bit of throttle, Idle speed is just above 1000, I am wondering if its a fuel problem even though I had the carbs cleaned in an ultrasonic cleaner
Hi, it's been a while since I did this repair but I don't recall anything below the stator except some hoses and the stator/trigger wiring. I know on some older outboard motors there was a spark advance plate that moved when you advanced the throttle but that was an old 5 hp Evinrude I used to have. When I look at the Mercury parts catalog it doesn't show anything under the trigger. Do you have the same motor that I do?
@@jeesp0ks1 I'm not familiar with motors other than mine. I'm not an outboard mechanic 🙂, far from it. I've had good luck just talking to the service department person at the boat shop in my city. Another place you can try is an outboard forum. Here's a link to one of them www.thehulltruth.com/
Another thought - Maybe you're seeing the trigger, which sits inside the stator (under the flywheel) and connects to the link arm. Another poster says his trigger seems to have movement in it after replacing the stator; newest posts ua-cam.com/video/dUzYaJAYs2A/v-deo.html
It just dawned on me that you are asking about the thing I made for the prop. 🙂 That's PVC pipe from Home Depot and some cheap runner carpet pieces rolled up inside to absorb some of the noise. My neighbors were complaining. I put it together dry (no cement) to see how it worked and it helped with the noise. Remember that the exhaust also comes out (on mine anyway) at the sacrificial anodes above the cavitation plate. DO NOT PUT IT INTO GEAR. 😲 It worked very well, you just need to use a 90° elbow instead of a 45° so it goes deep into the bucket. 😀
I was out fishing, running okay, slowed to about 1500 RPM, motor died, wouldn't restart. I waited about 20 minutes and motor started. I went to the next spot, motor died as I approached the spot. I waited 45 minutes this time but it did start. I went to the next spot, motor died (wouldn't stay running below 1200 RPM) and wouldn't restart again. These symptoms happened on a previous trip, twice, but I was able to get back to the dock. After the second trip it never restarted until I replaced the stator.
Hey rich! Big fan as you know so much about these 115s! I have an identical on3 to yours. I havnt had it out in the water yet, but ive notice the max spark advance jam nut isnt tight at all. Is there any chance in the world you can give me a measurement from yours? Bottom of the head to the top of the nut? Ive been through every one of your videos hoping to get a glimpse of it so i wouldnt have to bug you but no luck hahah.
Hi, Brian. You can post your question here. I'm not a professional technician for outboards but I will try to help you. If I have a problem with anything, I Google search to try and find someone who has blazed that trail before. In this case I found very little, but I was able to purchase a service manual for my outboard and figure things out. It's running again and seems to be okay. So please, post your questions here.
Thanks for thr vid! I'm just working on a 115hp the same as yours now, I removed it to replace with a 100hp due to the 115hp having trouble starting. Had someone break into my shed and they cut all my wires and ripped them off.. now I'm trying to re wire it completely and your vid is going to be a big help!
Hi Andy, that's terrible what they did to your motor. I hope my video helps you. I have others on my page that may help you as well, pics from different angles.
I had not had any problems with starting until the stator went bad. It did have problems with the motor dying when I slowed down, but that was years before the stator went out. With the stator, the motor would start when the engine was cold from being in the garage. On the lake it wouldn't start at all, or only with extremely long cranking. Even then it would die if the RPMs were below 1200.
Thanks for the great video.
Thanks for the kind words, JJS. I hope I was able to help you
Hi I have the same motor and have changed the stator, I have a bit of play on the trigger I cant remember if I had that before, it moves as it should do but it seems a bit floppy in there when I move the throttle, do you know if that would cause any issues with the timing,
Hi Gerald. I'm just a guy who's mechanically inclined. I pretty much follow the service manuals when I can. I would say that it's probably going to cause a problem since the trigger is what sends the spark to the spark plug. Was the trigger loose when you took it off? Can you see where the play is? It's been a while since I did this repair but I know I would have noticed if it was loose. Is it seated properly? Still using the screws that it came with?
My local outboard shop has been helpful in the past. Look for a local Mercury shop and give their service department a call.
Sorry I can't be of more help.
@@richward2288 Hi I have just looked at it again and it has aprox 1/8 inch up and down movement, I cant remember if it had any before I removed it all, the engine runs but doesnt seem as happy as it used to be, there are no screws that hold the trigger inn place, it did have some grease/oil residue on the bottom of it when I removed it, maybe that held it down and stopped it moving up and down, I did all this as I had a missfire, that has now been fixed, I replaced the stator and the switch bow both CDI parts
@@geraldoakley7688 I'll look at the manual and see if it says anything. I don't recall taking mine off so you may be right about the grease. I do know that with the CDI stator and OEM trigger the rev limiter would shut down the motor at 5,000 RPM. I had to disconnect the rev limiter so I could reach the 5250 RPM.
Nothing special in the service manual, just put the trigger on, connect to the link arm, connect the wires to the switch box and then install the stator. When I put my stator on I put it in exactly the same spot as the old one, with the wires in the back (looking down from the top, about 11 PM) and coming down the side of the block as shown at time 26:40. I did not have to time the motor and I get the full 5250 RPMs at WOT, same as when the OEM stator was on. What RPMs are you getting? My boat is a 17' Ranger R72, fiberglass, twin windshield.
@@richward2288 I put everything back as I took it off, the only thing I did was to remove the grease/oil residue on the bottom of the trigger, I have always been able to get 5250 RPM no problem I dont run it at this rpm often, just every now and then for a few seconds as I figure it's an older motor and cant afford to damage it, I have a 16 foot Glastron Siera, we use it for skiing so i have a 19 pitch prop so it gets the revs up pretty quickly. my issue now is it will not start unless I give it a lot of throttle, it will not start when warm by just turning the key, I have to give it a bit of throttle, Idle speed is just above 1000, I am wondering if its a fuel problem even though I had the carbs cleaned in an ultrasonic cleaner
Below flywheel and i think also below stator i have something that moves a little, seems loose, what it could be? Normal?
Hi, it's been a while since I did this repair but I don't recall anything below the stator except some hoses and the stator/trigger wiring. I know on some older outboard motors there was a spark advance plate that moved when you advanced the throttle but that was an old 5 hp Evinrude I used to have. When I look at the Mercury parts catalog it doesn't show anything under the trigger. Do you have the same motor that I do?
@@richward2288 i read service manual and in there i dont find anything.. 1992 100hp 4cyl mercury
@@jeesp0ks1 I'm not familiar with motors other than mine. I'm not an outboard mechanic 🙂, far from it. I've had good luck just talking to the service department person at the boat shop in my city. Another place you can try is an outboard forum. Here's a link to one of them
www.thehulltruth.com/
Another thought - Maybe you're seeing the trigger, which sits inside the stator (under the flywheel) and connects to the link arm. Another poster says his trigger seems to have movement in it after replacing the stator; newest posts
ua-cam.com/video/dUzYaJAYs2A/v-deo.html
What is that coupler thing you made for the exhaust? And what’s it good for?
Hello FLC 🙂 I'm not understanding. Can you give me the minute in the video where you see it? I don't recall making anything for the exhaust.
It just dawned on me that you are asking about the thing I made for the prop. 🙂
That's PVC pipe from Home Depot and some cheap runner carpet pieces rolled up inside to absorb some of the noise. My neighbors were complaining. I put it together dry (no cement) to see how it worked and it helped with the noise. Remember that the exhaust also comes out (on mine anyway) at the sacrificial anodes above the cavitation plate. DO NOT PUT IT INTO GEAR. 😲
It worked very well, you just need to use a 90° elbow instead of a 45° so it goes deep into the bucket. 😀
sorry you had to switch your stator, but lucky for us you made another great, educational, simple video to help others, thanks again, cheers
Thanks for the kind word, Mike. Just sharing my repairs for others. Motor has been running very well since this repair. New life in an old motor. 😃
What was your initial problem ? Won’t run ?
I was out fishing, running okay, slowed to about 1500 RPM, motor died, wouldn't restart. I waited about 20 minutes and motor started. I went to the next spot, motor died as I approached the spot. I waited 45 minutes this time but it did start. I went to the next spot, motor died (wouldn't stay running below 1200 RPM) and wouldn't restart again. These symptoms happened on a previous trip, twice, but I was able to get back to the dock. After the second trip it never restarted until I replaced the stator.
Hey rich! Big fan as you know so much about these 115s! I have an identical on3 to yours. I havnt had it out in the water yet, but ive notice the max spark advance jam nut isnt tight at all. Is there any chance in the world you can give me a measurement from yours? Bottom of the head to the top of the nut? Ive been through every one of your videos hoping to get a glimpse of it so i wouldnt have to bug you but no luck hahah.
See if this helps
ua-cam.com/video/qrhUhCVZKN8/v-deo.html
I really need your help about my 1995 mercury. How can we talk
Hi, Brian. You can post your question here. I'm not a professional technician for outboards but I will try to help you. If I have a problem with anything, I Google search to try and find someone who has blazed that trail before. In this case I found very little, but I was able to purchase a service manual for my outboard and figure things out. It's running again and seems to be okay. So please, post your questions here.