motogadget's m-Unit

I fitted one to my project bike. The electronics should replace relays etc and simplify the loom.
I ended up with 5 relays as well.
One for the starter as the one in the m-Unit isn't up to starting a triple. and 4 for dip, main and kill, and another I can't remember.
The m-Unit is designed for no parking light and I think dip on permanently.
If you were building a special with simplified wiring then it would be ideal. If you try to retain features of a standard loom then it gets messy.

It's a very nice piece and well made. It's also programmable (flash duration, brake light) and has a fault finding system.

Would I buy another? Only if I was making a stripped down loom.
 

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As Grant said, not really the hot ticket for use with a stock loom. If your rewiring the bike though and want to simplify the wiring then its a nice unit. I have one on my Spondon framed special and am quite happy with it. I have high and low beam, headlight on/off, kill switch and starter control all with just two push button switches. I'm not using signals but the M-Unit will control them, plus it has a motion detecting alarm built in. Oh yeah, horn control can of course be implemented too but again I'm not. The only relay I have is the stock one for the starter motor. The M-Unit will handle the starter relay functions for some bikes, don't remember if the Laverda is one but I just decided to use the stock one and avoid any possible issues. I've also implemented their M-Lock which is a nice slick radio freq. ignition switch. Very clean installation and it works great but again not much use on a stock bike. Overall it seems to be very well made but it is kind of expensive. If your just looking for something to supply circuit breakers on an otherwise stock machine there are numerous cheaper solutions.
 
M-Unit doesn't give you the option of switching the headlight off (some countries require motorcycles to run with the headlight on at all times and that's how the M-Unit is set up). Nor does it have a kill switch function or a headlight flash capability. If you want any of these functions you'll need to fit some relays external to the M-Unit, as Grant has done.
 
They have a version 2 released now, not sure if it addresses the problems mentioned above.  I was initially quite keen on getting one but as above it does not really operate in the way I'd like a bike to work, and having to add external relays on top rather defeats the purpose.
 
Might just clear up that birdsnest inside the headlight though.
 
Thanks for all your useful comments guys.

Seems that version 2 of the m-Unit (RE headlight off option mainly) will do the job as my intent was to simplify an already basic SFC wiring loom but which became messy and unreliable with the many mods over the years.

What about the m-Unit semiconductor starter "relay" ?
Are 30 Amps not enough for the 750 starter ?

Cheers
St?phane





 

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What about the m-Unit semiconductor starter "relay" ?
Are 30 Amps not enough for the 750 starter ?
Hello, Steph.
Use it for the horns, like my buddies did.
As the original starter relay is a 70A unit, I doubt that
the internal 30A relay will do.
hth
Ernesto
 
definitely, the 30A in the M-Unit are not enough for the starter.

Just to give you an idea, we measured the amper on a 750 S Formula that go through the leads to the starter engine, and that showed - no joke - over 270A! I have a picture at home of it, freaking scary... enough to put your balls on fire if something goes wrong...
 
Steph said:
Thanks for all your useful comments guys.

Seems that version 2 of the m-Unit (RE headlight off option mainly) will do the job as my intent was to simplify an already basic SFC wiring loom but which became messy and unreliable with the many mods over the years.

What about the m-Unit semiconductor starter "relay" ?
Are 30 Amps not enough for the 750 starter ?

30 Amps will be more than enough if you remove the plugs. :D

Not very useful piet :D



 
I think the Motogadget is overkill for the SFC.
If you make a simple wiring as per the original scheme, you have everything you need without heaps of spagghetti.

Marnix
 
MarnixSFC said:
I think the Motogadget is overkill for the SFC.

Certainly it is I must admit.

MarnixSFC said:
If you make a simple wiring as per the original scheme, you have everything you need without heaps of spagghetti.

Original wiring loom was not designed with any light(s) mechanical relay(s) (for front H3 iode Marchal's or HIDs) which I think is a mistake.
(Like relays for lights ..)
Add relays to it and it will start to look like a pile of spaghetti.

Major benefits of m-Unit black box are semiconductor relays and fused circuits.

St?phane

 
As mentioned the latest version of the M-Unit does have a kill switch and the ability to turn off the headlight. You can choose various options for the type of switches you have and this will determine just how everything works. On my bike I chose the option of two momentary push button switches using the starter and high beam flasher switches on the Ducati switch blocks on my bike. The right hand switch, the stock starter switch, starts the bike as normal and two quick presses of the switch kills the motor. On the left the flasher handles all the light functions. On startup the low beam comes on (headlights are automatically shut off when starting). Pushing and releasing the button will switch between high and low beam. Holding the button down will turn off the light, the next push turns it back on. Another pair of push buttons will give you the ability to activate turn signals and a horn. The M-Unit will also work with the various stock switch configurations in use so everything seems as stock.
You can find the installation/operating manuals here:

http://www.spieglerusa.com/m-unit-5998.htm
 
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