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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: mitchapalooza88 on July 01, 2020, 11:19:50 PM
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Hello all, I bet there’s a post somewhere for this one but I can’t find my exact answer.
I’m currently getting no power to the starter relay.
-I pulled the starter relay off and bench tested it and it’s switching correctly at 12V
-Handlebar starter button is working correctly
- Gear selector position is working correctly. Currently in neutral
- kickstand kill switch is working correctly
- load shedding relay is clicking when starter is pressed
- I jumped the two large terminals on the starter relay and the starter turns over
One other oddity I am noticing is my keyless fob isn’t arming and unarming the bike but maybe my fob battery is dead. I tried unplugging the alarm system but that left no change. Maybe I have the alarm system connections wrong on the battery terminals?
Any ideas would help!
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Also the fuel pump does run when I press the start button as it usually does.
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The K75 doesn't have a side stand switch as OEM equipment. Did you add one? What's the resting battery voltage? Have you checked your positive and negative battery connections for tightness?
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The K75 doesn't have a side stand switch as OEM equipment. Did you add one? What's the resting battery voltage? Have you checked your positive and negative battery connections for tightness?
Battery voltage is 12.6 v I also hooked another battery in parallel as a dummy test. Connections are good.
Also all the fuses in the fuse box are intact with no corrosion on the spades.
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What about the side stand switch; did you install that? Is the alarm aftermarket or stock?
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What about the side stand switch; did you install that? Is the alarm aftermarket or stock?
I guess no stand switch after all, I was pressing the lever behind the stand and I thought I was hearing the clicking of a switch but it was just the clutch pull.
The alarm is a Genuine BMW alarm system
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At the starter relay, either you're not getting power at 86, or you're not getting earth to 85, while the start button is pressed.
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A poor connection in the alarm wiring could be disabling the starter. Have a look at this (https://www.motobrick.com/index.php/topic,9008.msg71239.html#msg71239).
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I'm guessing the problem is in the alarm system. One of it's functions is to immobilize the bike. You wouldn't be the first person to have a problem with that alarm. Do a search on alarm system and it will show you some of the problems others have had.
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PROBLEM SOLVED
Thanks guys. The alarm schematic was exactly what I needed. When I reattached the alarm system I had all the wires on ground so the alarm system wasn’t receiving power.
I couldn’t remember if it prevented start up or not every time I tried starting the bike armed I was too busy cleaning the pee stain in my pants from the abnormally loud horn going off
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Love this thing. I’m lucky to have a super original low mile (10k) bike, plus I got it for $500
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I’m lucky to have a super original low mile (10k) bike, plus I got it for $500
Don't tempt fate. :laughing4-giggles: