Topic: new member from Iowa

[shinyblackdeer]

Hello from a non-SOHC/4 owner on a mission to learn more about the Motogadget m-Unit. I've been working on my Yamaha XT-225 build and have encountered some issues with the m-Unit that I may be able to solve by reading through posts and hopefully engaging with some of you on this forum. So, thank you for that!

[calj737]

Not much to them. Why don't you list the bike your working on and the issues you're having. I suspect we can get you straightened out.

[shinyblackdeer]

Thank you. The bike I'm working on is a 2004 Yamaha XT225, a dual sport that I've stripped down to bare bones. You can see my slow progress here: http://www.onegmoto.com. My motogadget setup includes the m-unit, m-button, m-lock, m-switch minis, motoscope mini with combi-frame and ignition signal sensor AND m-blaze turn signals. Whew.

I had no trouble wiring the m-unit and everything at the handlebar, plus horn, m-lock and all lights. I had trouble wrapping my head around ignition, and spent hours on my wiring diagram before biting the bullet. I blew a half dozen fuses in the process, but when my bike started, I freaked out! My thrill was gone when I couldn't shut the bike off. I checked and rechecked, but couldn't find the problem, until I found my config wire coming off the m-button was melted into my clutch switch wire. Dumb mistake -- I had power to my clutch wire. Fixed that, then I couldn't get ignition. Everything else is fine. I tore my hair out every weekend right up until I gave up for winter. Now I have spring fever so I'm back at it.

I read recently where you mentioned issues with the m-button. I don't know yet if that's my problem. I bought a spare CDI box, since I don't really know how to test that, in case I fried it. If that checks out, I may do as you suggested and omit the m-button. That bums me a little, because I spent a lot of time making wires neat in my bars. But if it solves my problem, that's fine by me. Would you mind taking a look at my diagram? Don't laugh I really appreciate your help.

Edit: diagram can be downloaded here (hopefully -- it's a large file): https://www.dropbox.com/s/zxwmrqtrsd1srmp/XT225_motogadget_wiring_diagram.pdf?dl=0

[calj737]

Your diagram as attached is "empty" and doesn't open.

Meanwhile, a few questions:
1 - You say you have no "ignition". Does that mean no power tot he m-unit, no electric start, or the bike won't fire?
2 - Did you program the Master m-lock fob and the spare? Are you using the Master or the Spare fob now to start the bike?
3 - Power to the CONFIG port is a no-no  Did you reset the power to the M-unit by disconnecting the battery POS lead afterwards?

Whatever the issue is, a little bit of troubleshooting shouldn't take long. I can't believe you waited months to sort it out  I'll check out your build blog while waiting for you to respond.

[calj737]

I read through your blog and watched the video "Functionality Test". I noticed that at no point did you ever have a NEUTRAL light on your Mini. Can you confirm that it does indeed still light up, or ever did?

Also, and this may hurt your feelings a bit, but remove EVERY STINKING CHEAP PLASTIC CRIMP CONNECTOR on your bike/install and use properly sized, shrink wrapped/insulated connectors, and the included ferrules for connections to the M-Unit!!!! You will have never ending issues with those little ring terminals for proper connection, and corrosion, and debris. Not to mention them coming loose perpetually.

I take that tone because you've obviously spent a great deal of time (and money) making a cool bike. Don't skimp where it counts the most, electrical. Intermittent connections are the bane of reliability, and you're badly poised to suffer through persistent electrical issues. Its one thing to use them for quick "functionality" tests, but never for a permanent install.

(Said with love and affection, kind of in a "father" scolding way...) 

[shinyblackdeer]

Understood!