BMW R100 Motogadget M-unit Wiring (How-To)

This video describes in detail how-to connect your OEM wiring harness to the #Motogadget M-unit for a BMW #R100. Also other tips and tricks for a clean install of the total wiringloom. #tutorial
All credits to the electrical scheme goes to @The Long Way There.
Please also check out the information down below:
drive.google.com/file/d/1C80I...

[@saitama80]

So clean! Also very inspiring how you solved the placement of the m-unit, ground and reg-rec!

[@corner.custom]

Thanks man! This really is the go to place for the M-unit because of the shape of the tank. The reg-rec needs cooling so it pretty much can't be anywhere else placed like it did

[@BayCityRestorations]

I always envy your electrical work! Great job! These two bikes are going to be top notch!

[@corner.custom]

Thanks Mike! Really can't wait to see the two bikes side by side 😍

[@axelzanelli1348]

Very nice wiring job! Used motogadget on my 1985 as well.

[@corner.custom]

Thanks man. Really works so well and easy which makes it a no brainer to use 👌🏼

[@jawracing911]

Looking beautiful! 👍🏼👏🏼👏🏼👏🏼

[@corner.custom]

Thank you👊🏼👍🏼

[@cedricletourneur5980]

Whaow man, it's SO CLEAN!!!

[@corner.custom]

Thanks man. It sure takes some time to do it like this, but nevertheless very satisfying

[@erwindijkstra8413]

Super clean, vakwerk! ⚡

[@corner.custom]

Bedankt man👍🏼👊🏼

[@pjpankras]

Very nice and clean install. I'm going to attempt to add an m-unit to my R100 build. First time so this is great reference!

[@corner.custom]

Thank you! The place where I put the M-unit is the best place imho, also regardig the routing of the wiring. If you have any questions, just fire away 👍

[@pjpankras]

@@corner.custom I have so many questions :) I'm currently making a list of what to order and what to do. I have an R100RT from 1979 all stock. I'm also going to convert it to lion. My first quation is if I can keep to original ignition and charging system? (apart from the new voltage regulator). Where did you get the battery box? :)

[@corner.custom]

@@pjpankras I suggest you upgrade the original ignition system and reg/rec, just like I did in my video. When going for a Lithium battery the oem charging systems isn't capable for it. The battery box is from Sport Evolution (German website)

[@pjpankras]

@@corner.custom my plan is to do the wiring in the winter and leave most of it as it is so I can at least drive it this year. The battery needs replacing so already ordered a lithium battery. I was hoping that all I had to do for now is add a new reg/rec and leave the rest as is.. then gather all to motogadget stuff and redo all the wiring this winter.

[@corner.custom]

@@pjpankras Yes that's possible, smart move to change the reg/rec at the same time as the Lithium battery otherwise you'll get charging issues 👍🏼

[@Cameraworksltd]

Nice work.

[@corner.custom]

Thanks!

[@StraightLineCycles]

Nice

[@corner.custom]

Thanks👍🏼

[@HandyGuy2016]

New Sub and building my first Airhead custom. I'm curious what coils and reg/rec you are using? I'm going to be rewiring in a similar fashion and I would like to use the same parts unless you have another recommendation? Thank you for the information and I have already picked up a lot from this video.

[@corner.custom]

Thanks man, welcome to the club 😉👍🏼 There's a whole playlist on my channel on the rebuild of my last R100 RS which also contains a lot of information. There's also more product specific information on my Instagram page, Corner.Custom. I can send you the links via dm on IG 👍🏼

[@Cameraworksltd]

If coarse you are using a ricks regulator, been using them for over a decade, great choice of regulator.

[@corner.custom]

The reg/rec really is a must do on a rebuild like this. Works great for the lithium battery

[@tango_alpha_golf5672]

@@corner.custom will the regulator adapt to the oem system? Thx

[@corner.custom]

@@tango_alpha_golf5672 The only thing that's remains OEM is the alternator and timing sensor. That work perfectly with all the aftermarket parts

[@tango_alpha_golf5672]

@@corner.custom gotcha. I just want to add a lithium battery to my oem electrical system will i only need the regulator or do i need to change alternator as well? Thanks

[@corner.custom]

@@tango_alpha_golf5672 Only the reg/rec will do just fine 👍🏼

[@Spawn4ever]

Great wiring work. What wire gauge size would you recommende on the BMWs?

[@corner.custom]

For the majority I've used 1,5mm, but for ground and power I've used 8mm 💪🏼

[@stefanofrancescoaltamura410]

Awesome build! Especially love the grounding bar to the frame. Definitely going to use that on my build. I was curious with the Daytona speedo did you have to use any sort of resistors or anything? Mine seemed to work for a little bit but the gauges or tac don't work anymore it does turn on however and the neutral, turn signal, etc lights work. I also had a grounding issue with my electrical ignition so I'm wondering if that maybe fried it but not certain. keep up the great work!

[@corner.custom]

Thanks man! The grounding bar really works well to keep it nice and organized. With the Daytona speedo you've to use a resistor for the RPM gauge, otherwise it will bounce around. But that's also mentioned in the intallation instructions. For all the other functions it worked well and didn't had any issues with the speedo. I did use it for other bikes as well with great results. Good luck!

[@stefanofrancescoaltamura410]

@@corner.custom Much appreciated!

[@corner.custom]

You're welcome 👍🏼👊🏼

[@arawacoudkerk6284]

Nice job, I got it waiting for me ;) kinda like the walzwerk horizontal install of the m-unit. Btw what exhaust silencers did you use ?

[@corner.custom]

Imho this is the best spot for the M-unit because there's a small notch in the tank so it slides over perfectly. Don't know the brand, but bought them at caferacerwebshop.com

[@arawacoudkerk6284]

@@corner.custom kzbin.info/www/bejne/gnukeGCJqpmAjLc This is what I meant :) still need to figure it out what I like best in the end ;). Anyway amazing job: krijg wel wat inspiratie van je werk :) still undressing mine, got a front fork of a gsx-r 600 waiting and all the electrics from euromotorelectics + Motogadget stuff..

[@corner.custom]

@@arawacoudkerk6284 Ah never saw that video, thanks. Sounds like you've got all the right stuff in order

[@PainfulPenetration]

Awsome work! Does it mandatory to change the dual coil when you install a M.unit + new Reg? do you have a reference, i can't find a good one.. Ty for all you videos

[@corner.custom]

Thanks man 👍🏼It's not mandatory, but highly recommended. This was the first bike where I installed the dual coil and new reg/rec and it ran so much smoother and also no issues what so ever regarding charging. When you're going this deep it's a no-brainer to change that part since it's also 40+ years old

[@scimmy77]

a sight to behold. with the m.unit control unit you have eliminated all the relays? even the starter relay ?. Thanks in advance for your reply and congratulations again I await your other videos

[@corner.custom]

Thanks! All the relays are in the M-unit, also the starter relay. Used the double start outputs and connected them both on the starter solenoid. Hoping to drop new videos out soon of both builds (R and K)

[@Ben-nu1km]

Hi, superb project.could you please tell me the fork that you used.thks

[@corner.custom]

Ducati Monster 👍🏼

[@philippknupp4746]

Hey cool video, questions, do you know a good Black 2K spray color to make the ingine black?

[@corner.custom]

The paint I've used is called Selamix DTM (Direct To Metal). Holds up perfectly

[@philippknupp4746]

@@corner.custom Great thanks a lot. and this is a spray... do you have link?

[@corner.custom]

@@philippknupp4746 Sorry don't have a link. It has to be applied with a paintgun in combination with a air compressor

[@philippknupp4746]

@@corner.custom got you, thanks.. but did you test it properly? is it not a problem because of the heat of the ingine and is it resistance against gasoline? sorry for this addtional questions :-)... because I just checked and saw it is only up to 100 degree Celcius tested

[@corner.custom]

@@philippknupp4746 I sure did test it properly. You can spil gasoline on it, but you have to clean it afterwards. It won't leave a mark on it. I've used this for 3 builds and didn't had any troubles with it. You can also use Cerakote C-series if you like. That's also applied with a paintgun and aircompressor

[@Zachcamaj]

awesome video, does the use of the motogadget m unit remove the starter solenoid?

[@corner.custom]

Your welcome 👍🏼 No the M-unit triggers the starter solenoid. Check out the diagram in the description box down below the video🤙🏼

[@Zachcamaj]

@@corner.custom I’m sorry I meant to ask if it removes the starter relay, which I seen in a comment down below that it does

[@corner.custom]

@@Zachcamaj Yes correct. The M-unit functions as a starter relay

[@Zachcamaj]

@@corner.custom what an awesome little unit, I am starting the build on my 82 r100 and I’ve wanted to always use the m unit, I’m stoked

[@corner.custom]

@@Zachcamaj I never build an BMW bike without an M-unit, and I'll always use one. These are perfect 👏🏻

[@AlcoHolix]

What handlebar is that? Really like the work you put into it!

[@corner.custom]

This one in the comment down below. Thanks man!

[@corner.custom]

www.caferacerwebshop.com/nl/aluminium-fatbar-zwart.html

[@AlcoHolix]

@@corner.custom Thank you! Did you happen to also have to get "fatbar" riser clamps as well?

[@oscarf318]

Where can I get a cover to replace the air filter?

[@corner.custom]

I bought it from a Dutch supplier, but I believe you can find one om Ebay as well 👍🏼

[@PavlosP]

What tires are those?

[@corner.custom]

Continental TKC 80

[@Cameraworksltd]

Love the build hate the tire choice

[@corner.custom]

It's a matter of taste

[@spibip]

Can you please share the parts list?

[@corner.custom]

Bought all the parts from caferacerwebshop.com. Made the wiring myself, but kept it according to the Motogadget color diagram

[@dustyvegas]

On you diagram i see breakout box or it’s other thing ?

[@corner.custom]

Yes correct that's indeed a breakout box. I didn't used that, so that's why I only used a part of the wiring diagram

[@dustyvegas]

@@corner.custom i see you have daytona speedometer you know Wher i can found diagrame for plugin with m unit ?

[@corner.custom]

@@dustyvegas There's a wiringdiagram that came with the Daytona speedo, just use that. The indication lights go to the outputs of the M-unit etc

[@dustyvegas]

@@corner.custom oh thx dude ! I Think i will pass on m-unit for my r80

[@corner.custom]

@@dustyvegas No problem man, good luck 👍🏼👏🏻

[@Bornamortezaei]

Wie viel kostet insgesamt alle sachen für Motorrad ?

[@corner.custom]

You mean regarding the electrics or the whole bike?

[@scimmy77]

i have the same bike and the same speedometer, can i ask you for a connection diagram, i can't get it to work, thanks

[@corner.custom]

Do you have a problem with a particular wires or the wiring in general?

[@scimmy77]

I left the original electrical system of the bike, I would like to replace the original speedometer with the daytona velona w. I have to cut the power strip and connect the original cables with the electric cables of the speedometer

[@scimmy77]

I don't have the m-unit and at the moment I would like to leave the original system I wanted to understand the combination to connect the velona w

[@corner.custom]

@@scimmy77 Ah ok I thought you also used a M-unit. But the principle is the same. Just connect the wires from the speedo to the power cables from the indicators, headlight, neutral and oil pressure light

[@corner.custom]

@@scimmy77 Oh and the wire from the rpm to the coil. You can connect it multiple ways, but that's all explained on the instructions of the Speedo. Also you can connect the speedo sensor two ways, sensor on the gearbox or another sensor on the front wheel like I did

[@Cameraworksltd]

The way a bike should be wired.

[@corner.custom]

That's right!

[@andrewhayes4246]

That m unit is really going to cop all the filth and spray that comes with use. The connections to the unit are not waterproof so will corrode.

[@corner.custom]

Bikes like these shouldn't be driven in wet/filthy weather imho. But I get your point 👍🏼

[@andrewhayes4246]

Plan for the worst, hope for the best. There will always be a short shower or burst water main. That battery is nicely placed to cop it too.

[@corner.custom]

Battery is just fine right there