Hi. I used to. Cant find it. If I get a chance I will see if I can make one. It was very simple. The injector tester box which sent pulses..going thru a transistor (darlington pair) to amplify the pulses. Driven and powered by the dc to dc converter.
Hi Mr Jim Sorry to Keep bother in you ,but i tried every way i could with no luck , i have the Darling NTE 2541 Transistor ,i have everything ,but just cant get the pulsating ,i also have the 12v injector cleaner and the step up transformer just cant get it to work , Please Help!!!!@@ontariooutdoorsman
Ok I set mine back up with a 12v headlightbulb as a load as i dony have an injector. I think I know what's up. The base of the transistor is driving thru a 2k resistor. Its driven by the NEG wire from the pulser tester..not the positive. This has to have something to do with the voltage wave coming out of the tester and the float voltage of the transistor base. If you drive it with the red wire from the tester..it will just pulse on. The voltage must stay too high and never turns off. Hope this helps. I'm going to draw up a diagram.
Thank You So Much Mr Jim ,YOUR A ANGEL , Thank You For a Diagram that would be MOST HELP FULL AND APPRECIATED, I will Be Looking for it ,GOD BLESS YOU ALWAYS Glenn@@ontariooutdoorsman
sorry just looked at your other video thanks .question could i use a ac to 36v dc power supply to run system for the injector and what pressure pump are you feeding injector please also a list of cleaning fluids
You likely could. I would start with a lower voltage until you see how it reacts. Depending on the size of the injector. I'm just using a basic electric inline fuel pump. Pressure is not important in this case u just want the reservoir to have an influx of fuel to keep the injector full
wonder if you could remove the inyector from its casing and reinstall it backwards in order to unclog in the oposite direction flow using your set-up. Biggest issue I see would be the matting surface between the outside surface of the injector and inside face of its casing so does not leak.
I cant recall what current it was pulling . It was a 0 to 60v dc to dc converter and I added a large cap to the output to sustain pulses. I was running it around 30v and the fuel heats up quickly so there is definitely good current flow. Could be calculatednif you measure the resistance of the injector coil
Thanks for posting the video. I have Kawasaki DI 2 stroke jetskis with Ficht injectors. I see people have ask about the setup transformer. Can you post a link to the one your are using?
Hi, great video!...can you show the exact cable routing to feed the 55v pulsed to the injector? Can I use a 200w 10A dc/dc converter from China? Thanks
Sorry I cant remember exact name but I bought on ebay. Was a injector test nipple/port fitting or something like that. I have not been able to find it for some time
@@ontariooutdoorsman ok, thanks for getting back to me .I took mine apart , removed the screens and tips and did a cdeep cean and installed a seal kt with new crush washer and screens .I think I should be good .All the fuel delivery items were dirt and had H2O in them .Cleaned it all from tank to injector and got rid of the contaminated fuel(previous owner )
Hi Jim, I was wondering if you connect the output injector tester cable +/- to the DC dc step up. I've connected all but the dc/DC doesn't start. I bought the same step up but i notice you have a capacitor between the injector and the output from the step up converter. Please send me a wiring diagram? Thanks.
So i have the output off the power supply connected to a darlington pair power transistor. The injector pulser cannot power the converter directly...the converter is connected to 12v to produce up to 55v. Then the output drives the injector thru the NTE2541 transistor. Injector connects to collector of transistor...other side of injector connects to 55v. Injector pulser drives transistor base which activates it.
Hi Jim, Great video! But the electric build part is to much trouble for me. So I made a connection port for my fuel line which allows me to connect a portable fuel tank with a 5 gallon 20/80 mix of cleaner and fuel. Once I'm out on the water I turn off the main fuel supply and let the engine run at different RPM on the cleaning solution until it's empty. Then I switch back to my main fuel supply. It cleans out the combustion chamber and fuel system as well. This gets done once a year. Also I use Yamaha Ring Free as an maintenance fuel additive.
whether you can send a picture or diagram of this assembly. i found a voltage converter on amazon but i need how you made the whole circuit, with that big capacitor on the board below
Do you know how many amps the injector needs to operate? Just looking to get a step up voltage transformer and not sure how many amps it needs to be able to support.
Sorry was a long time ago and I dont recall. I can tell you that it generates significant heat so dont run it without fuel flow or will be damaged..there is a wide range over which it can operate so as long as you reach the threshold it will pump.
@@bryceraphael6865 all I can tell you is they call the fuel hoses a fuel manifold. And if I recall it was something like a fuel manifold test fitting or test port. Was a long time ago and cannot remember exactly but I bought it and it was an evinrude package with part number.
Hi Jim, I was wondering if you connect the injector tester cable +/- to the DC dc step up. I've connected all but the dc/DC doesn't start, low tension from the tester? Thanks from Italy 🇮🇹
Hi. So not sure if I have explained this fully yet but there is more to this than just the 55 volt power source. The power source allows the voltage to be adjusted to the proper range however the fuel injector driver is a 12 volt device creating 12v pulses. The injector pulser is driving a power transistor (darling pair) to activate the etec injector. The darlington pair is a very high gain transistor with high input impedance. The collector of the transistor goes to the etec injector neg terminal and the 55v supply goes to the positive etec injector terminal. When a pulse is sent...it basically connects the negative terminal to ground and fires the injector for the duration. I found 35v to 45v quite good but certainly very powerful injector pulses as voltage approaches the 55v level.
i bought the allsun em276 injector tester and dc buck converter DROK 6-55V TO O-50 VOLT 8 A 400 WATT CONVERTOR I HOPE THIS WORKS, jim did i get the right stuff from amazon
Hi Jim, Thank you for this video. I have 2 x 115 Etec's from 2007. The port engine has two bad injectors. I didn't know that the injectors were so hard to find nor that expensive. I am more than impressed with your set up. So, if I've listened correctly, then I would need to source: 1. Etec fittings for testing & cleaning injectors from Ebay 2. solid state fuel pump - what brand, source, cost? 3. Seafoam cleaning solution 4. DC to DC converter to boost 12VDC to 55VDC, but you set yours at 35-38VDC for less heat production - any tricks on setting the output voltage? 5. Fuel Injector Testor - EM276 - any recommendations where you bought this? 6. Wiring is 12VDC positive into Fuel Injector Testor. FJI to DC/DC converter. DC/DC converter to ETEC injector 7. Reservoir built from what looks like a Friskies Temptations Cat Treats container, because I use them myself for other containers. Is there anything I've missed because I want to build this now and clean all of the injectors on both of my engines. Thank you again for this video... It's great.
Don’t need 55volt, 12 volt will operate the injector. the injector tester is handy. Also don’t need the fuel fittings as it’s best to set injector in the carbon cleaner. Make sure you cover bottom holes (return) and the top filter. Injector needs to be removed from the housing.
I used an NTE 2541 which is a Darlington pair..great for high current or motor control. I also put a a 10000 uf 100v capacitor on power supply output ...didnt try without it but wanted to help with pulse load. Wiring is very simple. Take 55 volts connect to one side of injector. Other side of injector connects to collector of power transistor. Emitter of transistor is grounded... Pulses applied to base of transistor will activate it. When transistor fires it essentially grounds the other side of the injector completing the circuit for the duration of the pulse.
@Jim Dolson thank you for sharing the information. I have the complete setup as you've described. I have the same injector pulser that you have, and I was wondering do you Connect the positive from the pulser directly to the base of transistor or do you have a resistor to limit the current. I have burned up 2 transistors so far :)
@@danny6935 I believe I have a 1k resistor inline driving the base. These are very high gain transistors. Ensure you have the injector from collector to positive. Also I bolted a small piece of aluminum to the transistor as a heatsink
Jim@Dolson What am I doing wrong , I only get one actuation out of the injector. Power supply is a 40 V High capacity batteries. And the transistor gets hot quick. drive.google.com/drive/folders/170Vykawrr2UYR9RsNbairy7_CvREpoVC?usp=sharing
It definitely works. It helped however did not completely solve my starting problem. It definitely improved high speed running. When the cleaner was allowed to run for an extended time you could see a definite improvement in the nozzle spray pattern. The clear container made it very apparent as it would perfectly show on the foam generated by the spray
I bought it on Amazon. Dont have the part number but if you search dc to dec converter you will see many options. Just make sure it can up convert to the voltage needed...with the input you will have.
I get your using a injector tester to get a rapid pulse signal At 12v into a 55v step-up dc-dc converter. But how many amps on the 55v side is required to activate?
Sorry but I don't recall what it was drawing. It's been a while since I ran it.. The total power is significant enough as it heats the circulated fuel fairly quickly.
Jim..I live in the Fingerlakes area of Ny.. is there any way you could ship me your setup and I use it to clean my injectors then I'll ship it back to you? I'll pay for your end of the shipping and if you want a deposit to make sure you get everything back I would do that to..
Did you find that any one cleaner worked better than others? And once you get it started, did the motor run any better? Mine starts fine, but has lost almost 1000 RPM on the high end.
So interestingly it did make the injectors spray better. You could actually see the pattern change as I ran them. Unfortunately I still am.experiencing a starting issue with the motor and M now suspecting my fuel pump/vapour separTor
@@ontariooutdoorsman "wait for the beep." Or not. Anyhow oil is also being sprayed into that system as well and it is the oil part that clogs the injector obviously and not gasoline which is an excellent solvent in addition to being an excellent combustion fuel. Oil on the other hand whilst adding a nice *power kicker* to the combustion process and in that process adding a cooling/lubricating effect is what is going to harden your valves, sprayer, etc. I would argue fist and foremost to use only Evinrude synthetic blend oil then add any cleaning solvents to the oil delivery system and not worry so much about the sea foam. Always do a borescope test as a compression test could mean anything but a bore scope will tell you immediately if there is an issue with the combustion chamber proper and any seals, valves, scouring and worst of all rust that has gotten into an area that needs to be pristine to gain, maintain and sustain pressurization in order to create reliable combustion. Obviously as well check your spark plugs and use only what the mfg recommends, properly gapped and indexed.
@@doolittlegeorge I think you are confusing this with a 4 stroke or vro. Etec do not inject oil to cylinders. They are 2 strokes that inject fuel at approx 400psi into a cylinder just before TDC. There are no valves as its 2 stroke. Oil is only injected directly into bearings not into combustion area. They are complex beasts. You cannot change an injector without the data file that comes with it. Each Injector gas a qr code attached and the associated data file takes deterioration over time I to account.
Jim - wow, such an awesome video! i am an outfitter in alaska, we run 3 jet boats on a skinny river. 2 of our boats we run yamaha 4 strokes but on our bigger boat we run an etec. i have built a homemade injector cleaner for the yamis (way easier) & also have that pulser. we have had to replace a couple of the etec injectors in the past & as you said...they're super expensive if you can even find them. per your video i have a step up converter from amazon on the way. i need to build these here at home (WA) in the next week before i fly up. everything is in the bush so i have to have all parts with me. my question is this...i cannot seem to find those adapters on ebay. i'm either not searching correctly or the guy doesn't sell them anymore. i know this is a big ask, but do you think you could check the size (threads etc) on yours and maybe i could get something to work? my motor is up in alaska so i can't do a comparison on my own. i'd really appreciate any insight you could give me. if you can't, no worries...thank you very much for taking the time to film & post your rig, i don't think you'll ever know how many people you've helped with this.
oh & jim, if you do have the time i thought i'd ask up front too save time...i can't seem to find the o.d. of the end of the injector itself so i don't how big the hole i should drill into my lid that accepts it. i don't know if you over drilled it & inserted a grommet or what. i can't measure until i get up to alaska & then it'll be too late. you prob have injector in motor but maybe you could measure hole in your lid & i could reverse engineer. no prob if you can't spare the time...i totally get it.
Hi. Sorry just seeing this now. Hope you have figured things out. I basically just cut a hole in the lid f the jar that was larger than needed...then marked the 2 Bolt holes that mount the injector. Very simple and the spray stays inside no problem Sorry about the fittings. I havnt used in a while but I will see if I can find them. They are the identical fittings that the engine has on it to connect t the injector.
@@ontariooutdoorsman hey jim thanks for the reply. we had to fly up for a week to open up camp for silvers. i had built a homemade injector cleaner for my yamaha 4strokes (way easier), i ran out of time to dig out my etec injectors to try and figure out thread slash size of fittings. i ordered the step up generator you recommended and after watching your vid again i realized the simplicity with regards to attaching the injector to your vessel. my problem is that i head back up in a week for 2 months in the bush and won't be able to figure out the size of those fittings that go into the injector. i can't believe how hard it is to find info on those fittings, i thought i was a pretty decent googler but man i'm struggling. anyway, i appreciate the reply, if you happen to trip over the thing let me know:))) although i'm pretty sure your injector is back in your motor. or if you have a suggestion or a website/link i could go to... hey listen, this is a big ask, we're all so busy so i get it, thanks for posting all this, really helped me.
@@8barbies779 ok I found it. Went to my ebay acct and loked back at the purchase and found the OMC/BRP part number. Check this link second-wind.net/products/omc-johnson-evinrude-5005844-genuine-oem-e-tec-outboard-nipple-o-ring-kit
@@ontariooutdoorsman Jim, can i tell you how much i appreciate you!!! i'll be home in a couple of hours & i will check it out...i'm horrible with googling on my phone:))) i will order if still avaliable because i have to leave for idaho on teusday for 2 months because i have elk hunting clients coming in on the 15th. it just makes me happy that there are still people like you in the world that we live in with all the crap going on these days. i will report back & let you know how it works for me & if there is anything that i can ever do for you i will respond to any reply you send me or i can give you my email. i'm just blown away that you took the time.
I've done a lot of research lately I love seafoam but many people are saying that it eats up the O-rings I was baffled and called several injector cleaning companies and most said the same thing
Interesting. Worh keeping in mind. I have used seafoam for decades and no issues I could relate to it. But that being said new materials used are not as good quality as the materials used 40 years ago. That's very obvious.
The purpose of this circuit is simply to fire the injector (activate diaphraghm) to pump cleaner thru the nozzles and interior of the injector. There is no additional modulation of the square wave and none is required to process and pump cleaner thru the injector. This circuit is not intended to run the motor...its purpose is solely just to exercise the injector pump to facilitate cleaning the nozzles etc. Being a full square wave of variable amplitude it can move the plunger faster than the actual smoothed waveforms
Seems like you have a side business opportunity... Maybe a couple hundred dollars for a cleaning, less than an hours work.. where do I ship them to ? Lol
Thanks for the video. O bought everything and about to attempt to reenact.. Have you found a way to separate the injector from the housing? Mine aren't budging...at all.
No. A standard injector tester does not work. It cannot even begin to provide the power neccesary to move the huge plunger inside an etec injector. The injectors testers for our cars will work with some power sports equipment as they are meant to power 12v piezoelectric injectors. Connecting that tester to a 55 volt high power etec injector does absolutely nothing. You wont even budge the plunger or spring
@@ontariooutdoorsman sorry mate, I have tested and it works, works enough for cleaning the internals of injector. Remove spray nozzle and I fully submerge injector which has been removed from the housing, like most injector shops do to clean injectors before spray testing. The spray nozzle is easily cleaned by itself. If you search TH-cam a dealer tech uses 12volt to same process I’m explaining without the use of injector pulse unit.
Also other ways to test: I’ve also cleaned using the diagnostic software plugged to outboard with injector unbolted from motor and in cleaning solution you can use the diagnostic injector test function in the V5 diag software to operate. This is how I used to do it periodically. But when I learnt you actually can use 12volt I stopped.
Well that's amazing. My injectors dont even budge with 12v. I can get them to start spraying around 25v and provide a good spray at 35v but if you scope the etec pulses with an ocilloscope the waveform is shaped around he full 55v
whether you can send a picture or diagram of this assembly. i found a voltage converter on amazon but i need how you made the whole circuit, with that big capacitor on the board below
I've cleaned these using an 10 dollar ultrasonic cleaner. just open the housing and put that in there and it cleans it nicely
You got a wiring diagram on this .looks like can do the job.
Thank you
That great thank you! I'm in Australia and my only option would be to get them cleaned in the US, not cheap. I think I'll give this a shot.
I have a 2009 etec 175hp and it starts and goes but no power. I love this set up. I may need to learn this.
Daria pra usar uma fonte de bancada aumentando gradativamente próximo dos 30v, e qual a amperagem usaria?
Genius! Got to kit them up and sell them.
Hi Mr Jim do you have a wiring Diagram for this tester, i am trying to bill one , Thank You So Much Sir
Hi. I used to. Cant find it. If I get a chance I will see if I can make one. It was very simple. The injector tester box which sent pulses..going thru a transistor (darlington pair) to amplify the pulses. Driven and powered by the dc to dc converter.
Hi Mr Jim Sorry to Keep bother in you ,but i tried every way i could with no luck , i have the Darling NTE 2541 Transistor ,i have everything ,but just cant get the pulsating ,i also have the 12v injector cleaner and the step up transformer just cant get it to work , Please Help!!!!@@ontariooutdoorsman
Ok I set mine back up with a 12v headlightbulb as a load as i dony have an injector. I think I know what's up. The base of the transistor is driving thru a 2k resistor. Its driven by the NEG wire from the pulser tester..not the positive. This has to have something to do with the voltage wave coming out of the tester and the float voltage of the transistor base. If you drive it with the red wire from the tester..it will just pulse on. The voltage must stay too high and never turns off. Hope this helps. I'm going to draw up a diagram.
Watch this new video
th-cam.com/video/BV0MgFIg5vk/w-d-xo.htmlsi=lxHajF299kLIJ0ne
Thank You So Much Mr Jim ,YOUR A ANGEL , Thank You For a Diagram that would be MOST HELP FULL AND APPRECIATED, I will Be Looking for it ,GOD BLESS YOU ALWAYS Glenn@@ontariooutdoorsman
sorry just looked at your other video thanks .question could i use a ac to 36v dc power supply to run system for the injector and what pressure pump are you feeding injector please also a list of cleaning fluids
You likely could. I would start with a lower voltage until you see how it reacts. Depending on the size of the injector. I'm just using a basic electric inline fuel pump. Pressure is not important in this case u just want the reservoir to have an influx of fuel to keep the injector full
hi Jim thanks for reply have you got a link to get adaptors to fit my injectors please
cheers lee
wonder if you could remove the inyector from its casing and reinstall it backwards in order to unclog in the oposite direction flow using your set-up. Biggest issue I see would be the matting surface between the outside surface of the injector and inside face of its casing so does not leak.
I have never removed the injector from the casing but I understand that they do come apart.
Gday Jim. What sort of amps are you looking at using with that dc2dc ? Cheers
I cant recall what current it was pulling . It was a 0 to 60v dc to dc converter and I added a large cap to the output to sustain pulses. I was running it around 30v and the fuel heats up quickly so there is definitely good current flow. Could be calculatednif you measure the resistance of the injector coil
Thanks for posting the video. I have Kawasaki DI 2 stroke jetskis with Ficht injectors. I see people have ask about the setup transformer. Can you post a link to the one your are using?
I have same problem with 175 etec old injectors motor done 120 hours always miss fired at slow speeds injectors need cleaning
hi great video any chance i can get plans to build myself one please
lee
Hi, great video!...can you show the exact cable routing to feed the 55v pulsed to the injector? Can I use a 200w 10A dc/dc converter from China? Thanks
Mr. Dolson, Would please show where to hook up the Injector tester? What is the meter use for?
Hi, great video!. The plastic bit that goes into the injector that supplies the fuel, what is it called exactly please? Thank you
Sorry I cant remember exact name but I bought on ebay. Was a injector test nipple/port fitting or something like that. I have not been able to find it for some time
Nice and smart idea.Any way you would clean a couple during the off season. Im in NB ?Thanks Terry
Hi terry. Unfortunately I have repurposed much of those parts. I no longer have an etec so the fuel pump and power supply are in use.
@@ontariooutdoorsman ok, thanks for getting back to me .I took mine apart , removed the screens and tips and did a cdeep cean and installed a seal kt with new crush washer and screens .I think I should be good .All the fuel delivery items were dirt and had H2O in them .Cleaned it all from tank to injector and got rid of the contaminated fuel(previous owner )
Hi Jim, I was wondering if you connect the output injector tester cable +/- to the DC dc step up. I've connected all but the dc/DC doesn't start. I bought the same step up but i notice you have a capacitor between the injector and the output from the step up converter. Please send me a wiring diagram? Thanks.
So i have the output off the power supply connected to a darlington pair power transistor. The injector pulser cannot power the converter directly...the converter is connected to 12v to produce up to 55v. Then the output drives the injector thru the NTE2541 transistor. Injector connects to collector of transistor...other side of injector connects to 55v. Injector pulser drives transistor base which activates it.
@@ontariooutdoorsman Thanks for the explanation. I will try it. I allready burned 2 transitors. But will keep trying.
Hi what # Step up dc/dc did you use and did you ever get it to work? Glenn Thank You
Hi Jim, Great video!
But the electric build part is to much trouble for me.
So I made a connection port for my fuel line which allows me to connect a portable fuel tank with a 5 gallon 20/80 mix of cleaner and fuel.
Once I'm out on the water I turn off the main fuel supply and let the engine run at different RPM on the cleaning solution until it's empty. Then I switch back to my main fuel supply.
It cleans out the combustion chamber and fuel system as well.
This gets done once a year.
Also I use Yamaha Ring Free as an maintenance fuel additive.
Wow..that is actually a really good solution...and much simpler. Very cool
Hi,
Do I need to use a 10000uf 100v capacitor or can i use something similiar or abit smaller?
I'm having trouble finding one
I only chose such big capacitor because the system uses alot of power. I'm sure you can use a smaller cap
whether you can send a picture or diagram of this assembly. i found a voltage converter on amazon but i need how you made the whole circuit, with that big capacitor on the board below
Did this work ? Did u ever find out the problem? Do u still have the motor if so how has it been ?
what current output is the dc step up voltage transformer? Great video
Do you know how many amps the injector needs to operate? Just looking to get a step up voltage transformer and not sure how many amps it needs to be able to support.
Sorry was a long time ago and I dont recall. I can tell you that it generates significant heat so dont run it without fuel flow or will be damaged..there is a wide range over which it can operate so as long as you reach the threshold it will pump.
Just wondering where do i get the fuel line kit for testing?
I actually found it on ebay when I purchased it. I got the part number somewhere on Brp manuals.
@ontariooutdoorsman i can't seem to find a part number anywhere for this product
@@bryceraphael6865 all I can tell you is they call the fuel hoses a fuel manifold. And if I recall it was something like a fuel manifold test fitting or test port. Was a long time ago and cannot remember exactly but I bought it and it was an evinrude package with part number.
That's awesome thanks for your replies. I'll try looking under that description and post if i find something
Can you email me photos of the electronics you made. how could I see which components are on the circuit and how they are connected.
can you give me the site where you purchased the connectors for the fuel lines that circulate the fuel, connectors that connect those lines.thank you
I actually found them on ebay. I believe the 2 connectors came in a bag and was sold as an etec injector Test kit
Hi Jim, I was wondering if you connect the injector tester cable +/- to the DC dc step up. I've connected all but the dc/DC doesn't start, low tension from the tester? Thanks from Italy 🇮🇹
Hi. So not sure if I have explained this fully yet but there is more to this than just the 55 volt power source. The power source allows the voltage to be adjusted to the proper range however the fuel injector driver is a 12 volt device creating 12v pulses. The injector pulser is driving a power transistor (darling pair) to activate the etec injector. The darlington pair is a very high gain transistor with high input impedance. The collector of the transistor goes to the etec injector neg terminal and the 55v supply goes to the positive etec injector terminal. When a pulse is sent...it basically connects the negative terminal to ground and fires the injector for the duration. I found 35v to 45v quite good but certainly very powerful injector pulses as voltage approaches the 55v level.
Absolutely brilliant I like this idea
i bought the allsun em276 injector tester and dc buck converter DROK 6-55V TO O-50 VOLT 8 A 400 WATT CONVERTOR I HOPE THIS WORKS, jim did i get the right stuff from amazon
Hi Jim, Thank you for this video. I have 2 x 115 Etec's from 2007. The port engine has two bad injectors. I didn't know that the injectors were so hard to find nor that expensive. I am more than impressed with your set up.
So, if I've listened correctly, then I would need to source:
1. Etec fittings for testing & cleaning injectors from Ebay
2. solid state fuel pump - what brand, source, cost?
3. Seafoam cleaning solution
4. DC to DC converter to boost 12VDC to 55VDC, but you set yours at 35-38VDC for less heat production - any tricks on setting the output voltage?
5. Fuel Injector Testor - EM276 - any recommendations where you bought this?
6. Wiring is 12VDC positive into Fuel Injector Testor. FJI to DC/DC converter. DC/DC converter to ETEC injector
7. Reservoir built from what looks like a Friskies Temptations Cat Treats container, because I use them myself for other containers.
Is there anything I've missed because I want to build this now and clean all of the injectors on both of my engines.
Thank you again for this video... It's great.
Don’t need 55volt, 12 volt will operate the injector. the injector tester is handy. Also don’t need the fuel fittings as it’s best to set injector in the carbon cleaner. Make sure you cover bottom holes (return) and the top filter. Injector needs to be removed from the housing.
Hello. Which power transistor do you using? Can you post me circuit diagram for the transistor circuit? Thank you
I used an NTE 2541 which is a Darlington pair..great for high current or motor control. I also put a a 10000 uf 100v capacitor on power supply output ...didnt try without it but wanted to help with pulse load. Wiring is very simple. Take 55 volts connect to one side of injector. Other side of injector connects to collector of power transistor. Emitter of transistor is grounded... Pulses applied to base of transistor will activate it. When transistor fires it essentially grounds the other side of the injector completing the circuit for the duration of the pulse.
@Jim Dolson thank you for sharing the information. I have the complete setup as you've described.
I have the same injector pulser that you have, and I was wondering do you Connect the positive from the pulser directly to the base of transistor or do you have a resistor to limit the current. I have burned up 2 transistors so far :)
@@danny6935 I believe I have a 1k resistor inline driving the base. These are very high gain transistors. Ensure you have the injector from collector to positive. Also I bolted a small piece of aluminum to the transistor as a heatsink
Jim@Dolson What am I doing wrong , I only get one actuation out of the injector. Power supply is a 40 V High capacity batteries. And the transistor gets hot quick.
drive.google.com/drive/folders/170Vykawrr2UYR9RsNbairy7_CvREpoVC?usp=sharing
@danny6935 I have the same problem mate. Did you work out the problem with yours. Thanks
How effective has this been to improve performance from the injectors?
It definitely works. It helped however did not completely solve my starting problem. It definitely improved high speed running. When the cleaner was allowed to run for an extended time you could see a definite improvement in the nozzle spray pattern. The clear container made it very apparent as it would perfectly show on the foam generated by the spray
Where did you purchase the dc to dc converter. Can you post the part number . I would like to purchase one.
I bought it on Amazon. Dont have the part number but if you search dc to dec converter you will see many options. Just make sure it can up convert to the voltage needed...with the input you will have.
I bought it on amazon. Was roughly 30 $. Sorry not sure what part
How many amps does it need at 55v to activate
I get your using a injector tester to get a rapid pulse signal At 12v into a 55v step-up dc-dc converter. But how many amps on the 55v side is required to activate?
Sorry but I don't recall what it was drawing. It's been a while since I ran it.. The total power is significant enough as it heats the circulated fuel fairly quickly.
Jim..I live in the Fingerlakes area of Ny.. is there any way you could ship me your setup and I use it to clean my injectors then I'll ship it back to you? I'll pay for your end of the shipping and if you want a deposit to make sure you get everything back I would do that to..
Do you sell this setup
Did you find that any one cleaner worked better than others? And once you get it started, did the motor run any better? Mine starts fine, but has lost almost 1000 RPM on the high end.
It did run smoother. I used seafoam and also another basic injector cleaner. Cant really say if one was better than the other
Hey Mike did you fix your injectors? My etec has lost 800rpm at wide open throttle... suspect injectors... did you resolve your issue?
Hey Jim, how did this work out for you? I have an older Ficht which has been sitting. It seems like it would benefit from this procedure.
So interestingly it did make the injectors spray better. You could actually see the pattern change as I ran them. Unfortunately I still am.experiencing a starting issue with the motor and M now suspecting my fuel pump/vapour separTor
@@ontariooutdoorsman "wait for the beep." Or not. Anyhow oil is also being sprayed into that system as well and it is the oil part that clogs the injector obviously and not gasoline which is an excellent solvent in addition to being an excellent combustion fuel. Oil on the other hand whilst adding a nice *power kicker* to the combustion process and in that process adding a cooling/lubricating effect is what is going to harden your valves, sprayer, etc. I would argue fist and foremost to use only Evinrude synthetic blend oil then add any cleaning solvents to the oil delivery system and not worry so much about the sea foam. Always do a borescope test as a compression test could mean anything but a bore scope will tell you immediately if there is an issue with the combustion chamber proper and any seals, valves, scouring and worst of all rust that has gotten into an area that needs to be pristine to gain, maintain and sustain pressurization in order to create reliable combustion.
Obviously as well check your spark plugs and use only what the mfg recommends, properly gapped and indexed.
@@doolittlegeorge I think you are confusing this with a 4 stroke or vro. Etec do not inject oil to cylinders. They are 2 strokes that inject fuel at approx 400psi into a cylinder just before TDC. There are no valves as its 2 stroke. Oil is only injected directly into bearings not into combustion area. They are complex beasts. You cannot change an injector without the data file that comes with it. Each Injector gas a qr code attached and the associated data file takes deterioration over time I to account.
Jim - wow, such an awesome video! i am an outfitter in alaska, we run 3 jet boats on a skinny river. 2 of our boats we run yamaha 4 strokes but on our bigger boat we run an etec. i have built a homemade injector cleaner for the yamis (way easier) & also have that pulser. we have had to replace a couple of the etec injectors in the past & as you said...they're super expensive if you can even find them. per your video i have a step up converter from amazon on the way. i need to build these here at home (WA) in the next week before i fly up. everything is in the bush so i have to have all parts with me. my question is this...i cannot seem to find those adapters on ebay. i'm either not searching correctly or the guy doesn't sell them anymore. i know this is a big ask, but do you think you could check the size (threads etc) on yours and maybe i could get something to work? my motor is up in alaska so i can't do a comparison on my own. i'd really appreciate any insight you could give me. if you can't, no worries...thank you very much for taking the time to film & post your rig, i don't think you'll ever know how many people you've helped with this.
oh & jim, if you do have the time i thought i'd ask up front too save time...i can't seem to find the o.d. of the end of the injector itself so i don't how big the hole i should drill into my lid that accepts it. i don't know if you over drilled it & inserted a grommet or what. i can't measure until i get up to alaska & then it'll be too late. you prob have injector in motor but maybe you could measure hole in your lid & i could reverse engineer. no prob if you can't spare the time...i totally get it.
Hi. Sorry just seeing this now. Hope you have figured things out. I basically just cut a hole in the lid f the jar that was larger than needed...then marked the 2 Bolt holes that mount the injector. Very simple and the spray stays inside no problem
Sorry about the fittings. I havnt used in a while but I will see if I can find them. They are the identical fittings that the engine has on it to connect t the injector.
@@ontariooutdoorsman hey jim thanks for the reply. we had to fly up for a week to open up camp for silvers. i had built a homemade injector cleaner for my yamaha 4strokes (way easier), i ran out of time to dig out my etec injectors to try and figure out thread slash size of fittings. i ordered the step up generator you recommended and after watching your vid again i realized the simplicity with regards to attaching the injector to your vessel. my problem is that i head back up in a week for 2 months in the bush and won't be able to figure out the size of those fittings that go into the injector. i can't believe how hard it is to find info on those fittings, i thought i was a pretty decent googler but man i'm struggling. anyway, i appreciate the reply, if you happen to trip over the thing let me know:))) although i'm pretty sure your injector is back in your motor. or if you have a suggestion or a website/link i could go to... hey listen, this is a big ask, we're all so busy so i get it, thanks for posting all this, really helped me.
@@8barbies779 ok I found it. Went to my ebay acct and loked back at the purchase and found the OMC/BRP part number. Check this link
second-wind.net/products/omc-johnson-evinrude-5005844-genuine-oem-e-tec-outboard-nipple-o-ring-kit
@@ontariooutdoorsman Jim, can i tell you how much i appreciate you!!! i'll be home in a couple of hours & i will check it out...i'm horrible with googling on my phone:))) i will order if still avaliable because i have to leave for idaho on teusday for 2 months because i have elk hunting clients coming in on the 15th. it just makes me happy that there are still people like you in the world that we live in with all the crap going on these days. i will report back & let you know how it works for me & if there is anything that i can ever do for you i will respond to any reply you send me or i can give you my email. i'm just blown away that you took the time.
I've done a lot of research lately I love seafoam but many people are saying that it eats up the O-rings I was baffled and called several injector cleaning companies and most said the same thing
Interesting. Worh keeping in mind. I have used seafoam for decades and no issues I could relate to it. But that being said new materials used are not as good quality as the materials used 40 years ago. That's very obvious.
The problem with this is that the ETEC is a bi directional Injector and needs a bi directional signal to operate correctly.
The purpose of this circuit is simply to fire the injector (activate diaphraghm) to pump cleaner thru the nozzles and interior of the injector. There is no additional modulation of the square wave and none is required to process and pump cleaner thru the injector. This circuit is not intended to run the motor...its purpose is solely just to exercise the injector pump to facilitate cleaning the nozzles etc. Being a full square wave of variable amplitude it can move the plunger faster than the actual smoothed waveforms
Seems like you have a side business opportunity... Maybe a couple hundred dollars for a cleaning, less than an hours work.. where do I ship them to ? Lol
Thanks for the video. O bought everything and about to attempt to reenact.. Have you found a way to separate the injector from the housing? Mine aren't budging...at all.
@@kenmoses8 I just left them in the housing and used the setup I made. Looked a bit risky to remove them.
Teach me o great one.
Don’t need to be 55volt mate. 12 volt with a $30 injector tester like you have is all you need.
No. A standard injector tester does not work. It cannot even begin to provide the power neccesary to move the huge plunger inside an etec injector. The injectors testers for our cars will work with some power sports equipment as they are meant to power 12v piezoelectric injectors. Connecting that tester to a 55 volt high power etec injector does absolutely nothing. You wont even budge the plunger or spring
@@ontariooutdoorsman sorry mate, I have tested and it works, works enough for cleaning the internals of injector. Remove spray nozzle and I fully submerge injector which has been removed from the housing, like most injector shops do to clean injectors before spray testing. The spray nozzle is easily cleaned by itself. If you search TH-cam a dealer tech uses 12volt to same process I’m explaining without the use of injector pulse unit.
th-cam.com/video/6kkzZ2UdeD0/w-d-xo.html
Also other ways to test: I’ve also cleaned using the diagnostic software plugged to outboard with injector unbolted from motor and in cleaning solution you can use the diagnostic injector test function in the V5 diag software to operate. This is how I used to do it periodically. But when I learnt you actually can use 12volt I stopped.
Well that's amazing. My injectors dont even budge with 12v. I can get them to start spraying around 25v and provide a good spray at 35v but if you scope the etec pulses with an ocilloscope the waveform is shaped around he full 55v
whether you can send a picture or diagram of this assembly. i found a voltage converter on amazon but i need how you made the whole circuit, with that big capacitor on the board below