High all. I've fitted new map sensors, a rear accelerometer sensor, and a new fuel level sensor in the tank. Before all this did a complete service, new plugs, Oil and a K&N air filter. Not firing properly so fitted a new front HT lead which fixed that. No EML's now! Took her for a run but wont rev past 5-5500? When i open the throttle, there's a loud whistling sound from the right hand side and the bike coughs and splutters and won't rev any further. When I got home, I revved the engine and the breather pipe in the diagram was constricting as the revs increased, with that loud hiss coming from somewhere? Has anyone evre experienced this behaviour on a multi before ?
It sounds, from your description, that air can’t get into the airbox quick enough to meet the engine’s demands as revs rise and a vacuum is being created within the airbox and also the crankcase breather vent box and this is why the breather pipe is collapsing. The hissing sound is perhaps air from outside whistling through a small gap as it attempts to equiliberate (that’s a made up word) the vacuum. I’d open up the air box and check the airways are completely free and there are no restrictions in/around the new filter and air passages.
I know. One screw is a proper pain to get at. Just fitted a new fuel sensor in the tank so I know that’s a big job with all the plastics. When I bought the new sensor, the technician told me that it would resetting in the ECU. it seems to be working fine though now
I've been told by a well respected Ducati engineer who frequents the Ducati forums that MAP sensors are replaced with no "reset" of the ECU reqd.
Unless you're talking about the fuel sender .... On earlier models replacing the Sender on those reqs a ECU update. But if that sender has been replaced before it probably has been done .. if your fuel gauge is working then you either have a later Ducati or it's been changed and updated before There is a note about this in the new sender box
Thanks for all your help folks. It was, As Steveb123 suggested, an incorrectly fitted boot (5). Now runs fine and revs freely
