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  #1  
Old 11-Sep-2005, 08:48 PM
hogfisch hogfisch is offline
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\'Fluffy\' throttle response at low revs

Hi all,

My 748 throttle response has become quite unresponsive at low revs. It seems to show up most with around town riding and if I go to blip the throttle between down changing, it seems to be a bit 'fluffy' (sorry, can't think how else to describe it).

I have checked cable / throttle freeplay and that is within spec. The bike is soon due its 18k mile service so wonder if it is just where it is ready for a tune.

BTW bike is running on 45mm open Termignoni and hi-flow filter with standard ECU chip. It has always run in this configuration since I have owned it, except it used to have 45mm open Microns. I don't remember having the problem with the Microns but I can't believe changing to Termignonis would make a difference.

Any ideas anyone?

H
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Old 11-Sep-2005, 09:11 PM
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dst1 dst1 is offline
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I must confess in being no expert but I would presume you need to upgrade to a performance e-prom, they work much better with Termi`s than with the standard chip and will change the fueling to give you a better throttle response.
I recently purchase a chip from JHP Ducati Coventry it came the next day and cost just under 30, I am sure someone else will come along that will give you much better advise than me, good luck with your problem.
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Old 11-Sep-2005, 09:15 PM
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GsxrAge GsxrAge is offline
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hmm standard chip needs to be changed or fit pc3.

Age
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Old 12-Sep-2005, 02:44 AM
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khu996 khu996 is offline
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Don't know if its the same, but an asymmetric Termi system fitted to my 749 gave me exactly the same 'fluffy' throttle response.

Turns out it was running way too lean, a PCIII and a trip to JHP sorted that out!

Does it bang/pop at low revs with closed throttle? If so, its another symptom of lean running.
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Old 12-Sep-2005, 09:02 AM
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Crunchy Crunchy is offline
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You definatly need to change the chip. But you also say that it needs servicing so it could also be fuel or air filter, probably both
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Old 12-Sep-2005, 02:14 PM
MarioP MarioP is offline
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I could be completely wrong on this one, but have you checked the throttle sensor? I was having similar problems at low revs (the engine was engaging and disengaging too abruptly), and the mecs realised my sensor needed adjustment. Just a thought...
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Old 14-Sep-2005, 11:35 PM
hogfisch hogfisch is offline
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So THAT is what a Ducati is supposed to rev like! Just fitted a JHP chip and all my problems have vanished! Much better at low revs and soooo much smoother under acceleration. Thanks for your suggestions guys
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Old 14-Sep-2005, 11:44 PM
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Crunchy Crunchy is offline
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Another happy customer
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Old 18-Sep-2005, 03:22 PM
whyworry whyworry is offline
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mine is suffering from similar problem...pops loudly on overrun and ,when u blip throttle on down changes it doesnt rev - just flat kinda....also farts / splutters and faulters on acceleration around 3000 rpm ....should it pull from low rpm?
this 996 has a performance chip but maybe wrong one??
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Old 25-Sep-2005, 02:14 AM
whyworry whyworry is offline
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where does one get a JHP chip from - price?
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