Running Rich

[jedforce]

Hi,newish Corsaro Avio owner,great bike,was running like a dream then I washed it with a hose,not a hi pressure washer,the next morning it was hard to start and when it fired it wouldn`t idle,I thought it may run better once warm,stalled a few times and again hard to start,Running very rough at highway speed and used twice as much fuel as it normally does(It ran out half way through my regular comute and I had to call for a refuel!).I have changed the stepper motor from one off my Hypermotard but that has made no difference.the Avio is completely stock.What should I start looking for?Thanks in advance,cheers,Gerry

[twisty]

since you washed it , best place to start is remove the coils (make sure tank is not full of fuel when tilted)

The plug recess has a drain hole which drains to the exterior of the cases. (you can see where it exits by spraying wd40 own the plug hole (with spark plug in place) and see where it comes out. If you wash under pressure ,even with a hose you can put water up the plug recess and it won't escape due to the coil stick cap, so you just end up with a nice steam room beneath the coil stick.

next time washing the bike plug these small holes once you know where they are.

next place or try first is the relays at the front of the bike , either at the front side or if it has been modified ,behind the bikini fairing.

[DaveH]

since you washed it , best place to start is remove the coils (make sure tank is not full of fuel when tilted)

The plug recess has a drain hole which drains to the exterior of the cases. (you can see where it exits by spraying wd40 own the plug hole (with spark plug in place) and see where it comes out. If you wash under pressure ,even with a hose you can put water up the plug recess and it won't escape due to the coil stick cap, so you just end up with a nice steam room beneath the coil stick.

next time washing the bike plug these small holes once you know where they are.

next place or try first is the relays at the front of the bike , either at the front side or if it has been modified ,behind the bikini fairing.

Think Tom may be on the money here regarding the coil sticks, However, I think heat is the main enemy, not water ingress. This causes the coils packs to break down,
Mine took to misfiring and cutting out when hot. Tried all sorts of remedies, but I am more or less sure now that it was the rear coil pack that was breaking down. It runs fine now I have swapped it out.

I could see how a waterlogged coil could make starting difficult initally but once warm it would be even easier for water vapour to escape from the drain holes than it was for water to get into there in the first place if you see what I mean.
Once running, the temps of the cylinders would dry the plug wells out in next to no time.

The lamdas are also a bit of a weak spot on these bikes.

New ones can be sourced for about £70, or for slightly more you could buy a licence for the ducatidiag writer software and disable the lambda altogether, as well as being able to remap to your hearts content.

I am currently experimenting with the Veloce map in mine - NLM tech reckoned the map benefitted all Corsaros regardless of spec. Ignition advance is a bit more aggressive with this map - it certainly make the bike pick up better off the bottom !

Am going to ditch the cat again once I get a couple of hours and dig my decat pipe out of the loft now I have disabled the lambda.

[jedforce]

All dry and squeaky clean,how can I read the error codes and what does the Ducatidiag allow you to do?does it come with maps or does it need a dyno?-

[twisty]

to read the morini codes

kill switch off
switch ignition on whilst keeping the speedo button pressed, and then scroll throught to diagnostic menu.

ducati diag will read dtc fault codes but since it's not specific for morini may throw up some spurious faults.

to use diag you need a connector cable about £10 , it allows you to reset the tps which is a useful feature to have (removing the cpu requires a tps reset)
With the diag software you can for instance check fan operation , fire the sparks on a cylinder of your choice etc.

If you purchase the licence you can then use the free maps which are then readable for remapping the ecu. These maps have been donated by other users who have read their ecu and uploaded the files for others to use. For instance there is standard corsaro maps , corsaro race maps,granpasso maps etc . the beauty is you can swap at your leisure (but not a five minute job).

for fuelling maps maybe dave on the forum can help as its not something i'm familiar with

[jedforce]

Hi,thanks for that,I noticed the injection light on while winding over and the fault code reads 'Heat / Probe O.C/S.C. GND` Is this a faulty O2 sensor?

[twisty]

easy way to check (as i'm not sure of the code) is to trace the lamba sensor to the first connection and disconnect.
Then see if you have an additional fault once you go through the diag routine again.

[DaveH]

Hi,thanks for that,I noticed the injection light on while winding over and the fault code reads 'Heat / Probe O.C/S.C. GND` Is this a faulty O2 sensor?

There is usually a numerical DTC shown with the faults, but I'm unsure if the built in diagnostic function shows them.

The fault will be an electrical connection to either the lambda heating circuit or possibly the engine temp sensor.

Has the temp guage been reading correctly, if so my money is on the lambda,

OC/SC = Open Circuit/Short to ground so if the fault is with the ground lead as suggested its logical that the problem is with an open circuit on the lambda heating ground wire.

This would explain the rich running

[jedforce]

Hi,I robbed the Lambda from my Hypermotard (everyone should have a Ducati in their garage!) and swapped it with the Corsaro,It was reluctant to start and when it did it ran as rough as but slowly clearing,within two minutes the catalytic converter section of the exhaust was glowing red hot,I shut it down and let it cooldown for ten minutes,started up again much easier and settled to a nice idle and sounded crisp when revved.the converter no longer glowing and the dash warning light is off.I will try it on the road in the next day or so......I have a pair of Leo Vince end cans to go on,what adjustments will I have to make?....the beat must go on!

[Tricky]

JedForce
Well done you, I bet you cant wait to take it out. Im no expert and I probably should not add my 2 pence worth. Sounds like it was mega lean for the cat to glow. Do CATs block or something? ( infact dont cats get hot thats how they destroy the harmful gases) and the heat sort of unblocked it, I did read somewhere else that someone took their bike to a work shop and they fitted a Ducati Lambda and got good results from this. Just this week I spoke to the guys that will be tuning my bike and interestingly we discussed these sensors. I was told that you can perhaps safley unplug them, if they have to remove them they measure their resistance and wire a resistor in series with the plug instead of the sensor. Now they were generalising and not Corsaro specific so please use this information at your own risk.
From personal experience I can say that previous bikes ive had needed to be remapped to run right with different end cans. They ran ok and I didnt notice any issues except a few flames occasionly from the pipe. Just over fueling a little I think keep an eye on the temperature gauge and perhaps inspect a plug to see if its running too lean or rich.
Happy riding
Tricky

[jedforce]

With it running so rich previously I assume there was unburnt fuel/carbon build up in the converter because now it doesn`t get hot and if was excessivly lean the engine would heat up quicker and run hotter,there is no `pinking' when revved although I havn`t tried under load.The O2 sensors have different part numbers (OZA591-BB2 -Morini & OZA591-BB3 -Ducati)I don`t know if this matters-Research says it`s the cable length and others say it`s the resistance in the heating element,any ideas?

[twisty]

if the cat was glowing red it's usually just the unburnt fuel. Leads to more problems further down the system such as plastic tail pieces,wiring etc melting as the heat becomes excessive in the system not just the cat.

Lucky you got the problem sorted in time

[Tricky]

Hi Jedforce, I called 3x today re my bike and asked about the Lambda, re, fitting a Ducati's I was told should be ok. Different lambda's are different lengths to ensure they sit in the exhaust correctly with the gasess passing over them. I hope to get my bike back this week I can possibly ask other questions. I did say it your cat glowed and as you and Twisty say its unburnt fuel, he did say that it sounded lean but it was a temporary thing.
I was told that a weak point was the engine breather that goes into the airbox discharging over a stepper motor causing them to go off tune quickly. I dont know where that is but it may help someone.
Regards
Tricky

[twisty]

one of the factory fixes was to squirt carb cleaner up the hoses directly to the stepper motor to stop it from sticking, probably due to what you've just mentioned about the hose in the airbox.
the fix was in the german forum which can be translated (the one that lists all the updates)

hi tech

[Tricky]

Edited

Hi Again,

Ive just found this old email frrom the factory which you might find interesting re fitting your end cans. Ive had nothing but trouble with mine, its down to Euro 3 emissions, bike engine temperature below 70 deg c, revs below 3k and the lambda. This closed loop thing, My bikes back from 3x still crap, but it will be my ecu cant work with my Termi's. I told them they agreed. Info ive gained from this forum.
my advice is change your cans be prepared to fit a race ecu or similar and have the bike setup again.

Thanks
Rich
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Dear Sir,

if you installed Termignoni silencers without DbKiller you should also install ECU Racing ONLY on Corsaro 1200 and Corsaro Veloce.
In case you are a Corsaro Avio owner, you should apply termignoni's ONLY if DbKiller is installed.
If would like to buy ECU the code is M1743001 € 607,071.
Speaking of DECAT we have nothing nor we ever produced that. We can suggest you to search on http://www.qdexhaust.it/ (an italian producer which worked with the Morini Team during the ROADSTER CUP in 2008 and 2009).
Kind Regards,

Customer Care
Motomorini forever

Cordialità,

Customer Care
Motomorini forever

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