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Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: MadwitTY on June 15, 2017, 06:29:26 PM

Title: 2014 SR has lurching power/torque delivery with throttle
Post by: MadwitTY on June 15, 2017, 06:29:26 PM

Hey guys.
Been having and issue the last view days that has me perplexed.
In both Custom and Sport modes, the power delivery​ when twisting the throttle seems to cut in and out rapidly.
It causes a bucking feeling like your car when you have water in your gas or carburator issues. I've observed that, even when at a constant speed, say 50mph, the level indicators for both power and torque add and then subtract s bar every second or so, even with my hand maintaining the same throttle position.
This bucking issue does not seem to happen in Eco mode.

I'm hoping it's not a throttle issue. Could it be the BMS or Controller?
I'll try and download the logs asap (at work now).

Thanks!

Title: Re: 2014 SR has lurching power/torque delivery with throttle
Post by: Fred on June 15, 2017, 06:59:11 PM

I think a similar issue in the past turned out to be the brake level rattling enough to trigger the brake light and regen braking.

Title: Re: 2014 SR has lurching power/torque delivery with throttle
Post by: togo on June 15, 2017, 08:54:49 PM

Quote from: Fred on June 15, 2017, 06:59:11 PM

I think a similar issue in the past turned out to be the brake level rattling enough to trigger the brake light and regen braking.

Check the calibration on the brake light switches. I think there's one for the foot brake and one on the hand brake. Make sure there's a little movement before the brake light activates.