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Old March 16th, 2016, 11:22 PM   #1
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I Ride: Hyperstrada 821, Multistrada 1200S
Miss fire gaps?

Has anyone else similar experience like I do have?
When I try to go hard on throttle Iam getting miss fire gaps time to time. Not sure if spark plugs are behind this or any other fault.
Bike has nearly 20k done.

Any clue? Thanks for comments
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Old March 17th, 2016, 03:36 AM   #2
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when were plugs last replaced, service done??
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Old March 17th, 2016, 07:22 AM   #3
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Mid way through rev range or upon blipping?
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Old March 17th, 2016, 01:32 PM   #4
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And it's not traction control cutting in, right?
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Old March 17th, 2016, 03:45 PM   #5
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Quote:
Originally Posted by mentalist View Post
when were plugs last replaced, service done??
I have done 15k service at Ducati but as I checked the record, no plugs sparks has been changed. I guess there was no reason for it.

Is there anything else causing the problem which might has similar characteristics?
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Old March 17th, 2016, 03:47 PM   #6
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Quote:
Originally Posted by BlueSwede View Post
And it's not traction control cutting in, right?
I just turned it off to see the difference and does not look like. DTC is activated mainly when you go very high with RPM or you r going into slide. Gaps are happening around 4-5k rpm
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Old March 17th, 2016, 03:48 PM   #7
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Quote:
Originally Posted by Jokeshopbeard View Post
Mid way through rev range or upon blipping?
mid range only. 4 - 6t rpm. Any clue?
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Old March 17th, 2016, 04:07 PM   #8
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I noticed this during part throttle at mid RPM. Fixed by the fuel module.

For misfires during full throttle but only mid RPM, could be a throttle actuator or TPS. The throttle bodies do not open fully until almost 7000RPM even if you have the throttle wide open, so they are slowly opening during this time. A faulty TPS or sensor could cause a hesitation here. A shop can read your TPS values and reset it.
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Old March 17th, 2016, 05:34 PM   #9
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Quote:
Originally Posted by kuksul08 View Post
I noticed this during part throttle at mid RPM. Fixed by the fuel module.

For misfires during full throttle but only mid RPM, could be a throttle actuator or TPS. The throttle bodies do not open fully until almost 7000RPM even if you have the throttle wide open, so they are slowly opening during this time. A faulty TPS or sensor could cause a hesitation here. A shop can read your TPS values and reset it.
Dunno by throttle actuator because the faults are happening always within the rpm range but independently on throttle position :/. What you mean by fuel module?

Does TPS get reset every time you change a mode?
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Old March 18th, 2016, 03:23 AM   #10
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Plugs should be replaced at 9000 miles, air filter at 18miles.
But note that poor fuelling and lumpy throttle around that rpm range is basically standard on these bikes, fixed mine with a rapidbike module.
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