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2015 GSX1250FA juddering on overun?

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Ewok1958
gus
rd400f
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Post  rd400f Thu 10 Dec 2015, 5:58 pm

Hi
I am finding my new GSX1250FA judders noticeably when I chop the throttle ,with the clutch out, at slower speeds.

Say around 50kmh in second and you close the throttle it slows down a bit then seems to judder.

Does the 1250FA have that overrun thing in the clutch?

Or is it more likely to be fueling issues on overrun?

Thanks
Richard

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Post  gus Thu 10 Dec 2015, 6:06 pm

TpsĀ  needs to be adjusted i'd say .
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Post  Ewok1958 Thu 10 Dec 2015, 6:27 pm

Pretty sure there is no slipper clutch on the FA.
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Post  paul Thu 10 Dec 2015, 6:34 pm

Chain adjusted properly ? ( drive chain lash ) if not that try Gus's suggestion or a throttle body sync.
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Post  2wheelsagain Thu 10 Dec 2015, 7:39 pm

It's the lean condition the 1250 in stock trim is saddled with.
It will be worse when hot and particularly bad after the bike has been parked and restarted when hot.
A throttle balance and TPS adjustment will cure most of it but in some ways it's a side effect of a very torquey low revving motor. A slack chain will make it seem worse but in my opinion the Suzuki chain specs are too tight.
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Post  reddog Fri 11 Dec 2015, 11:43 am

Get rid of the secondary throttle plates. My bike doesn't do this at all
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Post  rd400f Tue 15 Dec 2015, 3:59 pm

Hi
Thanks everyone for the replies.
I shall look into the Stage 1 upgrade.
Thanks
Richard

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Post  Jimcoleman Thu 17 Dec 2015, 10:03 pm

Oooh how i wish for a slipper clutch
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Post  2wheelsagain Fri 18 Dec 2015, 11:56 am

Jimcoleman wrote:Oooh how i wish for a slipper clutch

Mine is awesome Smile
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