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Strange sound after wheelie in 1. gear. Need help

Started by Mikkel67, May 28, 2010, 11:17:20 AM

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ducpainter

#15
May 31, 2010, 03:51:27 AM
It's a stock Ducati part.

I doubt you'll find anything in a hardware store.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Howie

#16
May 31, 2010, 04:22:03 AM
Give Ducati Seattle and Commonwealth a call.  They both have excellent inventories.  They are listed under "Sponsors".

hackers2r

#17
May 31, 2010, 04:48:51 AM
The part # is 790.1.012.1A.  If you are in the states, you are bound to find a dealer that has a few.  Like Ducpainter said, they were a known issue on bikes that used this exhaust design.  I can't believe you are running the bike without these!  That thing must be backfiring like CRAZY.  Get these on there ASAP.  They can be a pain in the ass to get seated right so I'd buy a couple spares too, just incase you damage them in the process.

ducpainter

#18
May 31, 2010, 05:11:09 AM
He's not in the states...
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Mikkel67

#19
May 31, 2010, 08:15:15 AM
so exhaust paste will not do the trick?

No, i am in norway and it takes a while to get things from overseas..

And yes, the bike is backfiring like CRAZY..

hackers2r

#20
May 31, 2010, 09:53:05 AM
Exhaust paste will NOT do the trick.  The gasket you are looking for is a steel mesh doughnut, exhaust paste just isn't going to do the job.  If you order from someone in stock it should be less than a week of shipping.  Those things are really cheap too.  There just isn't going to be a home fix for this man.  Only other way is eliminating them completely and having the header pipe welded to the Zard pipe. 

ducpainter

#21
June 01, 2010, 03:01:24 AM
Quote from: hackers2r on May 31, 2010, 09:53:05 AM
Exhaust paste will NOT do the trick.  The gasket you are looking for is a steel mesh doughnut, exhaust paste just isn't going to do the job.  If you order from someone in stock it should be less than a week of shipping.  Those things are really cheap too.  There just isn't going to be a home fix for this man.  Only other way is eliminating them completely and having the header pipe welded to the Zard pipe. 
We're spoiled in the states regarding shipping.

Customs in many countries will slow a package significantly.

I think his best bet is to order them from his dealer....and buy spares. They don't last long. ;)
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Mikkel67

#22
June 01, 2010, 11:51:16 AM
Quote from: hackers2r on May 31, 2010, 04:48:51 AM
The part # is 790.1.012.1A. 


The dealer told me that this is not a ducati part number.. does anyone know the correct part number for ducati?

Thanks

hackers2r

#23
June 01, 2010, 11:54:52 AM
Mikkel, I assure you this is a Ducati part #.  Straight from their parts catalogue and double checked with an online Ducati part catalogue.  I would check with another dealer if you can.

Mikkel67

#24
June 13, 2010, 09:58:42 PM
Hi again.

Now I have made sure that there is No leak from the exhaust any more. And the strange sound i was talking about after wheelies in 1. gear is gone. That is good. The problem now is that the bike is shooting, and shooting even more than earlier. the shooting is no exclusively coming from the back/end of the exhaust, whereas earlier it came from one of the leaks (i believe). In another replay, i think from ducpainter, he said that the shooting might come from a too rich map on the PC3. Other people told me, including the ducati dealer, that the shooting might come from the leakin exhaust - but now that cannot be the case. It is the ducati dealer that adjusted the PC3 after I uploaded a OK map. So, my question is, should i adjust the PC3 again and then the shooting will go away? I have a K&N filter w open air box. Does this effect anything. I dont have a stock air box lid so it is not easy to check this:). Any other suggestion. The shooting is so frequent that it is really annoying.

Thanks for answers

ducpainter

#25
June 14, 2010, 01:20:05 AM
If you're sure there are no leaks the bike is probably mapped incorrectly.

The open airbox does make a difference.

Did you do that before or after the dealer adjusted things?

You could go back to a different map and see what happens.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Mikkel67

#26
June 14, 2010, 10:01:34 AM
hi,

okay. Yes, i did cut the air box lid before the dealer adjusted the PC3. I can try to change the map and make sure that the map the dealer did is saved..

hackers2r

#27
June 14, 2010, 03:10:56 PM
If there is an exhaust leak anywhere, it can backfire at the tips.  How did you seal the leak and how did you test if it is sealed?  If that isn't an issue anymore, I'd tell you to definitely check the map.  Not really any other places to cause backfires/shooting like you are describing.

Mikkel67

#28
June 15, 2010, 07:38:22 AM
I can even see the blue/yellow light when it backfires. I have now noticed that one of the cans still leaks a bit where it bends up. But can this still be reason for all the backfiring? I somehow feel that it has to be The PC3 or something with the fueling. But the map i choose before the dealer adjusted it was the one the bike performed best with..

hackers2r

#29
June 16, 2010, 05:14:55 AM
ANY leak, no matter how small, can cause backfiring.  Not sure what you mean about the can bending up.  Post some pics and before moving on to any other possible culprits, fix ALL of the exhaust leaks.  I had the same thing happen and you wouldn't believe how small the leak was. 
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