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electronic speedo conversion - cali 1100 special

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murringoking View Drop Down
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    Posted: 11 Feb 2019 at 03:16
Hi all
Does anyone have experience in converting to an autometer electronic speedo?  I am attempting to use an acewell sensor.  This is a 2 wire unit that is driven off the bike's transmission speedo drive.  My acewell did not come with any wiring instructions but searching the web revealed the red wire to be +ve and the white -ve.  So I've attached the red to the speedo sensor input and the white to ground.  Wiring seems consistent with the wiring diagram provided by autometer.  I have wired -ve from speedo and sensor to the battery -ve as suggested.
The speedo does its preliminary check as expected when I switch on the ignition.  However, it does not respond to the speed sensor.  I suspected the sensor wasn't engaging the mechanical drive properly but spinning the sensor cable with a drill (both directions) does not give a reading on the speedo.  Clearly I have stuffed something up.  Any hints on where to start looking?
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Ken-Guzzibear View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2019 at 11:38
Best sensor is available from Digital speedos in uk same fitting works on yamahas too it screws into the speedo drive on these bikes and converts the cable drive to digital there are diags on Digital speedos site and info on speedos on the ETB instruments site 
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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2019 at 21:12
Sounds like the acewell sensor is the same as the one Digital speedos supplies.

They should just produce an AC voltage of varying frequency I would have thought. Not really rocket science.

When spinning the unit with a drill, can you test for an AC voltage between the wires? Might show if it's that or the speedo which isn't right.
Brian.

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murringoking View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote murringoking Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2019 at 04:19
Have contacted autometer and they confirm that speedo must be calibrated before the speedo needle will move at all.  This is common for all 2 wire sensors.  3 wire hall effect sensors are different - speedo will register prior to calibration.

Currently reassembling bike to do this.  Will report back.

Thanks
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