Jerky at 30-50 km/h

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Galbert
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Re: Jerky at 30-50 km/h

Post by Galbert » Wed Aug 08, 2018 8:57 pm


Thanks again vcyclenut.
It is just the “not at all normal for this bike” I need. My dealer says “a powerful bike like the H2SX can not go smoothly on lo rev”. Now I shall confront him with some other opinions!
I have so far not heard about anyone having the same problem.
I really appreciate all answers. Even if it just says “it is no problem riding the H2SX at 30-40 km/h”. At last maybe I can convince my dealer that something is wrong with my bike!
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Re: Jerky at 30-50 km/h

Post by Champ87 » Wed Aug 08, 2018 9:14 pm


Galbert wrote: Wed Aug 08, 2018 8:57 pmI have so far not heard about anyone having the same problem.
I can add to the list - I haven't experienced any jerkiness when riding my H2 SX SE at low rpm in town or traffic. I find it very smooth and easy to ride at low speed/small throttle opening - but much more fun at high speed. :cheer:
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Galbert
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Re: Jerky at 30-50 km/h

Post by Galbert » Wed Aug 08, 2018 9:43 pm


Thanks Champ87!
I completely agree! Much more fun I high speed, and then it is a fantastic bike.
And still no one with the same behaviour as mine!
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Re: Jerky at 30-50 km/h

Post by roadczar » Wed Aug 08, 2018 10:40 pm


I got a chance to mess with it today. Tried multiple speeds and gears 15 - 30 mph. No surging or jerking. I did notice sensitivity to throttle input at very low speeds it was very easy to make it surge with very little input.
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Galbert
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Re: Jerky at 30-50 km/h

Post by Galbert » Thu Aug 09, 2018 6:03 am


Hi road czar.
Super! Thanks a lot for your special investigation!
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THOR
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Re: Jerky at 30-50 km/h

Post by THOR » Tue Aug 21, 2018 8:21 pm


i have the same problem, but it must be something to do with emission regulations, O2 sensors are not wideband so i agree they might cause this, but i also think its the fuel injector deceleration cut is very powerful. I almost feel like the bike wants to throw me from on top of it.
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Re: Jerky at 30-50 km/h

Post by roadczar » Tue Aug 21, 2018 8:51 pm


One thing to try is to use different power level. Lower levels mellow out throttle response quite a lot.
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Gadus
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Re: Jerky at 30-50 km/h

Post by Gadus » Wed Aug 22, 2018 5:56 am


roadczar wrote: Tue Aug 21, 2018 8:51 pm One thing to try is to use different power level. Lower levels mellow out throttle response quite a lot.
I know this solution has been suggested, but why buy a bike with 200 hp if you have to reduce the power up to 50 % to make it work properly.....??? :crazy:
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THOR
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Re: Jerky at 30-50 km/h

Post by THOR » Wed Aug 22, 2018 8:36 pm


i tried the KEBC setting there is only two setting light and off i did off but not alot changed.
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Re: Jerky at 30-50 km/h

Post by Galbert » Wed Aug 22, 2018 8:58 pm


Hi THOR.
Thanks for your answer. You’re the only one except me (so far) having the same problem. Interesting. Have you complained at your dealer, and if, what did he answer?
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