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-   -   Jerky throttle (http://hyperstrada.com/mechanical-technical/273-jerky-throttle.html)

HyperEA June 5th, 2013 12:25 PM

Jerky throttle
I dont know if it is me, but when I ride 4000 rpm and bellow the engine is not smooth. Although I fix the throttle, I feel irregular pulse. I went to my dealer and they checked if there is any update for ECU there is none for mine.
I checked on web, some bikes have that issue, some say immobilizer or alarm can interfere with the ECU.

Has anyone suffered such problem? Is it normal?


maddoggie501 June 5th, 2013 12:43 PM

I think you may be experiencing something very common to twin cylinder Ducatis. They do not what to run below 4000 rpm's. I notice the same issue, usually around 3500 to 4000. The engine starts to run rough like I'm lugging it. I try to keep the RPM's up and I have no problem. I'm use to large displacement bikes, which can be lugged down to 2000 RPM's and are very happy, while my Hyperstrada isn't happy under 4000 RPM's.

Stradasphere June 5th, 2013 05:20 PM

I get the surge at around 3500 to 4000. Half of my commuting to work is on city streets where it is noticeable. I'm going t to talk to my dealer when I get ready to take it in for service.

gatdammit June 5th, 2013 10:17 PM

Think it's just design. Buddy has a new 848 evo and it hates sub 4K putting too.

HyperEA June 6th, 2013 05:56 AM

it sucks if it is 2 cylinder Ducati engine, and no way to fix. I live in city center 30mph some places 20mph. It is worse when 2up.

thanks for sharing

jerdog53 June 6th, 2013 06:06 AM

I would suggest running in a lower gear moving it out of that RPM range or dropping a tooth on the front sprocket would do the same thing

gatdammit June 6th, 2013 09:05 AM

Good point, Jer. Knocking a tooth out will torque it up some. Messing with sprockets was a very popular thing to do in crotch rocket land.

How many teeth can you loose before you have to change size/take links out of chain?

jerdog53 June 6th, 2013 10:37 AM

I think a 14 tooth is the smallest they make or have made for Ducs and I dont know that there is one available for this bike yet.

I plan on putting a 14 on this when I can I am assuming it has a 15 on it stock.

I dont know about these single sided swing arms and how much adjustment they have so I cannot comment about loseing links in the chain yet....

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