Ducati Monster Forum

Moto Board => Tech => Topic started by: ctrain on April 12, 2010, 11:15:46 AM

Title: Exhaust Plugs?!
Post by: ctrain on April 12, 2010, 11:15:46 AM
I just installed a full Zard system on my 2006 S2R 1000. After a few issues with the exhaust gaskets, I got everything working and sealed...

So upon examining the pipes I noticed that I am missing a bolt/plug. It is a bolt/plug that has an allen wrench head and screws into the mid-pipes. I dont know the purpose of it, nor do i know what it is called. But on my ride this weekend, one of them became loose and fell out.  [bang]

A few questions...

1. What is the purpose of the bolt?
2. Would the local Ducati dealer have one I can buy or is it a part that is specific to Zard pipes? (ie size, thread pattern)
3. What the hell is the thing called?!
Title: Re: Exhaust Plugs?!
Post by: junior varsity on April 12, 2010, 11:19:14 AM
7801007A and there is a crush washer. At least that's the part number for the older monsters.

Yours looks to be: ... the same #.


Its similar to an exhaust bung for O2 sensors.
Title: Re: Exhaust Plugs?!
Post by: junior varsity on April 12, 2010, 11:20:23 AM
85250241A - the "gasket". I think its actually a crush washer. Use some loctite. You don't want that to be open to the atmosphere because you'll get some poppin' in the exhaust.
Title: Re: Exhaust Plugs?!
Post by: ctrain on April 12, 2010, 11:48:02 AM
Thanks for the help on the part#,.

so what is the purpose of it?
Title: Re: Exhaust Plugs?!
Post by: WetDuc on April 12, 2010, 01:08:04 PM
I think it may be for an O2 sensor, if you want one of those bedeviled things on your motorcycle.
Title: Re: Exhaust Plugs?!
Post by: ctrain on April 12, 2010, 02:10:32 PM
There is a different place for the O2 sensor. These are smaller but similar looking holes.
Title: Re: Exhaust Plugs?!
Post by: Rob13 on April 12, 2010, 03:17:27 PM
1. I believe the ports are used to check the exhaust gases from the individual cylinders
2. A dealer may have them.
3. I always called them exhaust bungs .
Title: Re: Exhaust Plugs?!
Post by: Howie on April 13, 2010, 03:16:01 AM
Quote from: Rob13 on April 12, 2010, 03:17:27 PM
1. I believe the ports are used to check the exhaust gases from the individual cylinders
2. A dealer may have them.
3. I always called them exhaust bungs .

Yep, that is what they are for.  Same threads as OEM?  Dunno.  Zard should know.  If your local dealer has them give one a try, if not see what you can pick up at a plumbing supply.
Title: Re: Exhaust Plugs?!
Post by: WetDuc on April 13, 2010, 03:23:38 AM
I know what you are talking about now.