STRider
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For the 2008+ ST1300 models the initial setup after install requires running through the gears with the bike on the centerstand with the engine running and rear wheelturning. It sequentually matches the output of the pulse generator and the speedometer to assign a gear number to the display. Each pair represents a different gear. When at a stop, or idling in gear with the clutch disengaged even while rolling, my GPI displays a dash, '-', until you're rolling again.I have a question: On bikes that have transmissions that allow the shifter to move up even when in fifth, how do you prevent the gear indicator from indicating sixth gear if you inadvertently raise it?
I believe if you're silly enough to start the gear assignment in 2nd rather than 1st, it should be possible to display 1st while in 2nd gear and so on.
Moving the gearshift lever has no effect on what it displays. Since lifting the lever while in 5th gear (ST1100) will not change the pulse to speedo ratio, it will never misassign 6th gear. The lever on the 1300 however doesn't even move if attempting an upshift from 5th. I'm pretty sure the pre-2008 1300s behave the same, but IIRC you need to tap into the speedo at the output of the transmission rather than entirely through the diagnostic port like on my 2012 1300.
Since the 1100 has a mechanical speedometer drive, there's no way to match road speed to rpm without also adding some sort of sensor like the cruise controls do. Likely a magnet on the rear wheel with a Hall effect sensor or less likely, a reed switch. At least I'm pretty sure that's what you'd need to do.