Shutting off while riding - MVAgusta.net
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post #1 of 14 (permalink) Old 07-03-2019, 09:21 PM Thread Starter
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2015 Brutale 800RR
Recently while cruising along at 40 mph my bike shut off. Dash remained on but engine stopped. I was at a constant throttle when it happened. No shifting, closing of throttle or braking when it happened. I coasted to a stop and the bike started right up and worked fine for the ride home.
This occured once before about 2000 miles ago and at that time I thought it was the side stand switch so I disconnected it. Since it didn't happen again until now I figured that was the problem.
My current thinking is the kill switch or balance sensor. If it were in the ignition switch, the dash wouldn't stay on. Does the the balance sensor act like the kill switch or does it act like the ignition is turned off?

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post #2 of 14 (permalink) Old 07-04-2019, 06:17 AM
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The Lean Angle Sensor talks to the ECU. It is powered by the same fuse that controls your dash, speed sensors, and solenoid start. It will kill all power to the bike.

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post #3 of 14 (permalink) Old 07-04-2019, 09:50 AM
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I thought the "Tip Over Sensor", or whatever name it has, killed power to fuel pump, and maybe ignition and/or injectors; not the entire electrical system.

That's the way it works on most other bike brands and in cars.

Easy enough to test the function. Remove the sensor from it's mounts (holding with a hand in normal position), start bike and then turn sensor over. See what shuts off.

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post #4 of 14 (permalink) Old 07-04-2019, 02:01 PM Thread Starter
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I will test the tip over sensor - seems like things are pointing toward something faulty in the right hand switch gear.

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post #5 of 14 (permalink) Old 07-04-2019, 03:20 PM
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I have the same issue with my 2014 F4RR

It's either the lean angle sensor (tip over feature is built in there) or side-stand switch

Side-stand switch i already ordered since it was quite cheap but the lean angle sensor costs a hefty 600$, does anyone body know where i can get it cheaper besides going through a MV parts seller?

- 2014 F4RR
- 2012 Brutale 1090RR
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post #6 of 14 (permalink) Old 07-04-2019, 04:46 PM
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I seriously doubt the lean angle sensor is at fault, since these are considered safety related components (and used by more manufacturers than just MV) and undergo stringent reliability testing at the supplier level.
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post #7 of 14 (permalink) Old 07-04-2019, 05:19 PM Thread Starter
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I concur.

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post #8 of 14 (permalink) Old 07-04-2019, 05:56 PM
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Quote:
Originally Posted by esq'z me View Post
I seriously doubt the lean angle sensor is at fault, since these are considered safety related components (and used by more manufacturers than just MV) and undergo stringent reliability testing at the supplier level.
So then in my case (14' F4RR) there's only 3 other options left:

- The ignition switch
- Side Stand Switch
- Quickshifter

The throttle assembly got already changed

The reason why im suspecting the lean angle sensor is because a few others here described the exact same symptoms and after changing it out it dissapeared

- 2014 F4RR
- 2012 Brutale 1090RR
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post #9 of 14 (permalink) Old 07-04-2019, 07:11 PM
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They probably corrected a bad connection.

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post #10 of 14 (permalink) Old 07-04-2019, 08:28 PM Thread Starter
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If your dash goes off it might be the ignition switch / ignition wiring. If the dash stays on then I'd look at the side stand switch 1st. You should search the 4 cylinder section for side stand switch bypass for you model and year bike. On the 3 cylinder bikes you simply unplug it.
Intermittent electrical issues can be hard to find sometimes but almost always end up being a loose/bad connection or pinched wire.
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