Bank Angle Sensor question
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Cruiser
Joined: Mar 2010
Posts: 191
Likes: 2
Well that's pretty stupid that factory wouldn't adjust it to work when a Bagger goes over on it's side and is resting on the engine guard. just about all Baggers have the guards on and if the bike goes down in geŕr that wheel is going to keep spinning. I would think that could be dangerous. I've read that my bike has the sensor in it guess I'll have to check a service manual.
Road Master
Joined: Sep 2010
Posts: 803
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From: Port St. Lucie FL
I won't go into details on how I know this!!
Stellar HDF Member
Joined: Jan 2009
Posts: 2,578
Likes: 463
From: On a Lake, not far from the Gulf
Early Harley FI models have a vehicle attitude sensor. I tried to set mine so it had a more aggressive attitude, but it still ran the same 
Part number is 32448-95, so I am guessing that it went back to the first FI models in 95-96.
Part number is 32448-95, so I am guessing that it went back to the first FI models in 95-96.
Outstanding HDF Member
Joined: Dec 2007
Posts: 2,803
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From: El Paso, Texas
I can tell you from sad embarrassing experience that it does in fact trigger on a bagger if it leans onto the engine guard. To add insult to injury it even says "tilt" on the LCD readout. You have to cycle the ignition switch off and on to re-start.
I won't go into details on how I know this!!
I won't go into details on how I know this!!
HDF Community Team
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
It's a 1996 RK. The bike went over and stopped on the engine guard but motor kept running. Had to shut it down manually. After bike was upright it started right up without cycling anything. Got me thinking about what these Bank Angle Sensors are for and how do they opetate. Sure didn't do what it's suppose to do. Anyone know why? I haven't any clue.
The bank switch if part of the ignition sensor in the nose cone, and would dare to bank when your ignition pick up sensor epoxy melted, it was replaced with a MC-spa3 that does not have the lean angle kill switch isntead.
Bank kill switch if the part to the right of the melting mess of the OEM unit.
MC-spa3 that you can use to replace the OEM ignition sensor when the stock one does a melt down, and notice that it does not have the lean kill switch device.
Last edited by Dano523; Jun 17, 2020 at 12:54 AM.
HDF Community Team
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
It's a 1996 RK. The bike went over and stopped on the engine guard but motor kept running. Had to shut it down manually. After bike was upright it started right up without cycling anything. Got me thinking about what these Bank Angle Sensors are for and how do they opetate. Sure didn't do what it's suppose to do. Anyone know why? I haven't any clue.
The cam sensor is in the nose cone, and below you can see the black part of the OEM sensor is just a mercury switch, and tan part is the cam sensor that is melting.
So with SPA3, no tilt mercury switch that will cut the timing sensor output, if bike is laid down.
If bike is carbed, then maybe completly different ignition module in the nose con, and it may not have tilt switch as well.
As for tilt kill switch, in some bikes part of the cam sensor, while other bikes, was moved back to under the rear seat area instead. So with say evo that is part of the cam sensor, when bike is tiled, just cuts out off the output of the cam sensor/work fine again when bike is upright, while with other bikes where the switch is independent, will shut the ecm down, and have to cycle the key to reset the ecm.
But on the positive note, no impact fuel cut off switch if the bike is Bumped hard enough, where like the old broncos that impact switch was under the dash above the clutch pedal or behind the passenger side panel, that hard enough bump off road, would kill the fuel pump, and had to get under the dash/pull the passenger side panel to reset the switch by hand in less than ideal conditions instead.
Last edited by Dano523; Sep 27, 2024 at 02:18 PM.
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