Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Here's my problem...

[NBs996]

Right then, it's probably electrical so I'm lost... hope someone can help:

Riding along quite happy, then the engine starts to pop and misfire.
Shortly after, the engine is on/off, like surging and dying repeatedly.
Pull over and it dies.
Re-start her and tickover is as smooth as yer bum, but slowly increase the revs (in neutral) until it gets to around 4k then it dies. Release throttle and it catches again at tickover and it ticks nice n smooth.
Leave it 15 mins, fire up, ride off - all fine and dandy again.

Whatsgoingon????!!!!

n

[Rattler]

Ghosts in the machine - argggggghhhhhh !!!

[madmav]

sounds like fuel starvation Nick! Blocked filter or even pump/relay!! hard one to find"" Nelly bring it on?...mav

[wato39]

I had a very similar problem a few weeks ago and it turned out to be the pressure sensor . Good luck

[NBs996]

Ta guys (no, not u timothy!)

Fuel starvation was my suspicion, but i'm not sure that ties up with the on/off power (it's either 100% on or 100% off, not nufink in between). Blew through the filter, a very technical check that was, and it seemed clear. No splits in the short tubes connected to the pump either. Could it be the relay, or is that only active when the pump is primed?

Pressure sensor - d'you mean the air pressure sensor?

If only it was a mechanical prob, then it'd be a piesh of pish!

[GsxrAge]

Originally Posted by NBs996

Ta guys (no, not u timothy!)

Fuel starvation was my suspicion, but i'm not sure that ties up with the on/off power (it's either 100% on or 100% off, not nufink in between). Blew through the filter, a very technical check that was, and it seemed clear. No splits in the short tubes connected to the pump either. Could it be the relay, or is that only active when the pump is primed?

Pressure sensor - d'you mean the air pressure sensor?

If only it was a mechanical prob, then it'd be a piesh of pish!

Check your fuel tank breather !!

[wato39]

Yes mate it was the air pressure sensor that could only be diagnosed by plugging it into a pc .

[RickyX]

Originally Posted by NBs996

Shortly after, the engine is on/off, like surging and dying repeatedly.
Pull over and it dies.

n

Epilepsy?

[psychlist]

How old was the petrol in your tank

[NBs996]

Originally Posted by psychlist

How old was the petrol in your tank

not nearly as old as you