I just got a the replacement fuel pump from Quantum and wired it with the time delay from my battery lead - just like you did. So far works great! But, you made a key point - Quantum will sell a lower amperage pump if requested? If true, I could have requested that and swapped it for my orig pump, with no special wiring required. Am I correct?

I have a old v1 that’s giving me problems. Won’t turn in either direction with the foot control, but will turn on its own with auto pilot. On/off and speed controls engage on the foot pedal. Tore everything apart and didn’t see any obvious issues. I’m assuming the pedal is bad, despite taking that apart and not seeing any signs of wear. Any words of wisdom?

Great video! Having problems with my Mercury 25 from 2013 (just 40 hours on it), OR-serial with tilt and electric start. My engine died after 5-10 min on the water (it did start when the engine was cold). Authorized mechanic identified a bad high pressure fuel pump (and said it works until engine is warm). They said there were power to the pump and advised me to replace it. I installed an aftermarket pump and it worked great for 1-2 h - then the engine died and now it won't start at all. I connected the fuel pump directly to the battery and it starts right up. When I measure volt in the connector that connects to the VST it shows around 15 V - but the second I connect it to the VST it goes to 0 V. Therefore I figure my ECU is fried and I'm looking into your solution. The thing that bugs me: what was the original issue? Can the original pump fry the ECU? I connected the original pump to a battery and it still works - so I'm thinking the mechanic got it wrong and I replaced the original pump for no reason. BTW: the filter at the bottom of the original high pressure fuel pump was super clean.

And just bypass that ECU for the fuel pump, would that work?

What would it hurt to hook the fuel pump to its own power source on a switch?

if I buy a factory pump I should be ok

When you move switch to foot pedal side, will you be able to control prop speed, prop on/off and steering? Or do you have to switch to center position anytime you want to control the prop?

Mercury and Yamaha had a partnership from 80's. Changed to tohatsu in 2003_2004 time frame for smaller motors. Theese are the best and worst motors to buy run. When they run it's great but parts are impossible to find now

Thanks for this. So, the pump you bought/installed drew the proper current and did not damage the computer? If yes, what brand was it?

you learn something new everyday

Removed the rudder. I use just the oar to steer now. Simplified it.

Sick

Good video Omie. Have you experienced any problems since doing this mod? My 2021 bt pilot power drive has been a lemon as soon as the warranty expired. I have replaced the control board, the armature and now the ipilot remote has died from water ingress.. I have never submerged it, but it's not uncommon for me to fish in the rain. I honestly hate using a controller and would prefer pedal, but don't want to loose ipilot completely as I do spot lock semi regularly

why not just use the ecu to ground (power) a relay that switches 12v to the pump?

Do you lose Spot lock and gps capabilities?

Hey I’m having trouble with mine. It’s a 2008 25hp factory jet( tiller handle electric start) so it is a 30 at the head. When I attempt to start it if the red light does not come on and no beep( short beep) it will not run. But if I get a red light and the beep it will fire right up. Fuel pressure is 38-40. No spark when cranking and no red light. What should I test brown wire not shorted to ground

I have a 2014 30hp that I replaced the pump on. Ran for 2 years no problems or errors lights. thought I burned out the aftermarket pump but I am still getting 12-14 volts to the pump lead when I hit the starter. Do you think my ecu is fried? pump still doesn't seem to be running so maybe it just wont run under load. just curious if you got any voltage to you pump leads when your ecu was fried?

What connects to the fuel regulator?

Very nice 👌

The 90hp would have done fine if it was 25" shaft really. But it would be running 4500rpm to keep it at 25mph which is ok. Still impressive that a new 90 can and did push this. The 150 is less than 1/2 throttle doing job of 90 at 3/4-full.

Is there anyway my father-in-law can get ahold of you, he is having problems doing this to his trolling motor.

Hi Omie, great video you produced, it's very orienting. I have a Mariner 25 HP Four Stroke EFI engine (OR201916 )), absolutely manual, my fuel pump burned out and once replaced (I did not resort to a Service Officia Mercury, I clarify), the shutdown was altered. The man overboard caused a short circuit and the engine wouldn't start. I live in Argentina and after your publication, I understand that no one knows exactly what are the characteristics of the relationship between the amperage of the pump and the ECU of this engine, so I can assume that the inconvenience that arose may be collateral damage of the replacement of the original pump with one that does not correspond to the model and year of this engine? I have already contacted Quantum and they have already suggested the exact model of them corresponding to my engine (HFP-382OB). Can the issue be reversed? Thank you very much for your contribution, Ezio.-

These are the 16ah cells used in the condor/metro bus. They’re actually rated for quite a bit more current than the 25ah cells the same size that the seller probably thought they had. Most of these sub packs are 12s2p regardless of which cells were used, but they are modular and bolt together. If you wanted to get a higher voltage you would have to ditch or modify the white metal case it came in, but you can just bolt in more cell groups for whatever series connection/voltage you want.

tenho um desse como sabe o ano dele na chapinha parese um S

I dont know why Tohatsu Made these engines so complicated just for move a propeller.ecu damage every week.i Will return to carburator.an ECU from quick silver 1100 dollars.same part in Yamaha system 350 dollars. And Mercury AND Tohatsu hard to find.

I have the same engine. i got 12 volts for injectors, fuel pump. but the problem is it does not spark. i have tested lanyard switch and stop switch. it does not have any issue. resistance in both side cps is in range. i don't know why it doesn't spark. will it be a problem with ecu?

Hi thanks for your answer, I swaped the 2 sensors, having same issew. Has mentioned early I have 2 tohatsu 30 hp. Do think if I replace the Ecu I will not have the same problem later . I expreance that before the Ecu get damage. From your experience do you have any idea how the Ecu get burn. Have replace the wiring harness also. Thanks..

Hi sir l from Mauritius, have same problem my Tohatsu 30hp the Ecu get damage. No spark on the s plug the engine does not start at all. In in fact have 2 outboard motor. Could you please give me a cost for the modification and a new ecu. Thanks for you reply.

Brilliant!!!

My 2001 did same thing I changed out carburetor and use only non oxygenated fuel. Ethanol fuel wrecks motors. Yours is newer so you more than likely have efi fuel delivery. Good luck

Thanks for the solid advice. Keep making videos 😎

Please make a video of switching over to tiller. Enjoyed this video

How does the speed control work since you say the pedal will only control the steering? Do you still need to use the ipilot remote for speed control?

Awesome!

Merhaba saati nasıl bağladınız

I need a 25" shaft. The fact that boat even did 20mph with a 20" is interesting with only half the prop in water.

Hello. Thank you so much for your video. I’m about to take on the same project. I was curious about one of your comments. You said that any motor with the OR serial number was subject to this. My serial number starts with a OR but it’s a 2018 I’m wondering if that still applies if they changed everything in 2014?

I have the same boat go with a 150 HP

What color are the wires that are coming out of the board for connecting the foot pedal? Read through some of the other comments -I do not have a black and white wire coming from board. I just have Green, Yellow, Brown and Ref. I have a 24v Powerdrive and am trying to do this set up but can’t figure out where my bottom set of wires are supposed to connect for the using the foot pedal.

And you left the choke on

i try to do this with i pilot link but it didnt work for me i got on head several wires disconected beside the ipilot link .it just to go to auto pilot i think . any help on this please thanks

Are you using a on-off-on or a on-on-on DPDT style switch? Thanks

A 90 isn’t going to push that boat all to well. I have the same boat with a 2001 200hp Johnson. Cruising speed at about 30, WOT is about 43 without any gear on board.

I have the same motor and it will run a while and then when I shut it off it will not start.Any ideas what it could be

Karavan trailers are garbage. I wish I never bought one.

By adding the switch, does this allow you to use both remote and foot pedal without having to swap out the plug each time?

Tohatsu outboard does not get gasoline into the cylinders. The injector, ecu, spark plugs are intact. When I pour gasoline into the pistons, it works a little. When I press the starter, oily gasoline comes out of the exhaust. Could the high pressure pump have malfunctioned? How can I test it? Greetings from Istanbul, Turkey..

Tohatsu outboard does not get gasoline into the cylinders. The injector, ecu, spark plugs are intact. When I pour gasoline into the pistons, it works a little. When I press the starter, oily gasoline comes out of the exhaust. Could the high pressure pump have malfunctioned? How can I test it? Greetings from Istanbul, Turkey..

Quanto pesa? Se lo hai mai pesato con una bilancia Grazie