Tronbike Meter (TBM) 4.0.0 Test Ride

Monday, August 25, 2008

Teardown and Debug! Magura 0-5kOhm Dead Spots?

I got into a teardown of Tronbike tonight to debug an intermittent power cut-out I am experiencing under acceleration. It got really annoying tonight on the ride home and I decided to see if the throttle, 0-5kOhm resistor, had any dead-spots, because it feels very throttle related. Might be a "gaser" reaction to assume its a sticky throttle, but I tore off the fairings and tank to get at the throttle leads. At about 4kOhms in, my multimeter repeatably shows a blip down to 44Ohms. 4kOhms is like 80% throttle, lower ranges have some noise too. Anyone know if these Magura 0-5kOhm throttles are pretty bulletproof compared to the other possibilities?

I'll dig through the data log to see if I can find a pattern in the Amp cutouts with voltage dips or throttle position mis-queues. Riding I did notice Amps cutting out so I hope the sampling rate might have caught other blips.

Looking at the rear disk, I am tempted to put new pads on and call it done. OEM rotor is really pricey, and given it works well now, I imagine perfect brakes could be overkill for my 45mph rig.

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