Ducati Sporting Club

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 31-Aug-2011, 07:44 AM
Manga Manga is offline
Registered Forum User
Bevel Head
Bikes: Ducati 996B, Triumph Sprint ST 955i
 
Posts: 84
Join Date: Aug 2011
Smoking

After a ride on Sunday, my mates summoned the courage to tell me Tuesday that the 996 is smoking on acceleration.

I warmed it up yesterday on the side stand plus a bit of wood to get near upright and when cold there is a steady white puffing - probably condensation from a cold engine. At 40 C and above this dissapears. However, when blipping the throttle, a jet of white smoke is emmitted from the horizontal cylinder exhaust can.

I realise this could be down to a lot of different ailments but just thought I'd post up here anyway for some thoughts.
looks like the inside of the exhaust can from the horizontal cylinder is more dirty than the vertical.

Bike has been for sale at the dealers since at least March 2010 and apart from a few test rides it has been laid up there that long till I got it last week.

As the clutch is so worn & noisy I cant tell if the engine sounds abnormal - not that I would know anyway so I shall pop over to BikeTech in tamworth to let him have a look at it before I take it back to the dealers for the clutch

I've put some petrol treatment in the tank to see if it makes any difference - poss injector dirty.

On another matter, how much if any oil should a 24,000 mile engine use?
Reply With Quote
  #2  
Old 02-Sep-2011, 11:37 AM
Manga Manga is offline
Registered Forum User
Bevel Head
Bikes: Ducati 996B, Triumph Sprint ST 955i
 
Posts: 84
Join Date: Aug 2011
I warmed up the bike and when at just under 80C, you can make out a little smoke on blipping the throttle.

http://www.facebook.com/?sk=lf#!/pho...pe=1 &theater

Anything to worry about?
Reply With Quote
  #3  
Old 03-Sep-2011, 07:37 AM
Manga Manga is offline
Registered Forum User
Bevel Head
Bikes: Ducati 996B, Triumph Sprint ST 955i
 
Posts: 84
Join Date: Aug 2011
61 views and not one comment?
Come on, anyone - is the smoking abnormal????
Reply With Quote
  #4  
Old 03-Sep-2011, 11:09 AM
RickyX's Avatar
RickyX RickyX is offline
Registered Forum User
Big Twin
Bikes: 916SPS Ratbike + 749R Shed
 
Posts: 1,030
Join Date: Jun 2001
Mood: Ugly girls (749) are more dirty.....
All I can say is that I have never experienced any kind of smoke issuing from my 748 or 916 exhausts - apart from condensation when bike hasn't been run for a while.
Suggest a compression check would give an indication of valve or piston ring wear.

R
Reply With Quote
  #5  
Old 05-Sep-2011, 03:47 PM
Manga Manga is offline
Registered Forum User
Bevel Head
Bikes: Ducati 996B, Triumph Sprint ST 955i
 
Posts: 84
Join Date: Aug 2011
Bike has been collected today with a list of defects - smoking from horizontal cylinder, clutch worn and noise from generator.

Roll on the return.
Reply With Quote
  #6  
Old 05-Sep-2011, 10:22 PM
skidlids's Avatar
DSC Region Organiser skidlids skidlids is offline
MotoGP God
 
Posts: 18,150
Join Date: Apr 2002
Mood: Its ONLY a Bike Club
Hope they sort it for you
One point about the opening post, you refer to vertical and horizontal exhaust cans. On all the exhaust systems I have come across the intemediate pipe between the downpipes and the Silencers conatin a cross over that links the two pipes together, so that they are not independent of each other
Reply With Quote
  #7  
Old 06-Sep-2011, 02:45 PM
Manga Manga is offline
Registered Forum User
Bevel Head
Bikes: Ducati 996B, Triumph Sprint ST 955i
 
Posts: 84
Join Date: Aug 2011
Quote:
Originally Posted by skidlids
Hope they sort it for you
One point about the opening post, you refer to vertical and horizontal exhaust cans. On all the exhaust systems I have come across the intemediate pipe between the downpipes and the Silencers conatin a cross over that links the two pipes together, so that they are not independent of each other

Thanks for the help - wonder why the smoke only appears from one can then? Looking at the rear of the bike, it is the right hand pipe and the outlet is much sootier than the left.
Reply With Quote
  #8  
Old 07-Sep-2011, 05:34 PM
smilo006's Avatar
smilo006 smilo006 is offline
Registered Forum User
500SD
Bikes: CBR 600F2-(Ishikawa), Blade RRS-(Baba San), 996s-(Tambo), 996R-(Tambo), MV f1000 312-Tambo
 
Posts: 700
Join Date: Feb 2004
Mood: I like my bike
If there is a link pipe then have you tried it with the can off to confirm which cylinder it is coming from. Great excuse to try it too. Had 3 and never had that problem.
Reply With Quote
  #9  
Old 02-Oct-2011, 06:59 PM
Manga Manga is offline
Registered Forum User
Bevel Head
Bikes: Ducati 996B, Triumph Sprint ST 955i
 
Posts: 84
Join Date: Aug 2011
Turns out the 'smoking' is unburnt fuel so all is good.
Reply With Quote
  #10  
Old 02-Oct-2011, 09:00 PM
skidlids's Avatar
DSC Region Organiser skidlids skidlids is offline
MotoGP God
 
Posts: 18,150
Join Date: Apr 2002
Mood: Its ONLY a Bike Club
And as the unburnt fuel isn't expanding like the hot exhaust gasses it tends to head straight down the pipe and out of the end can without expanding through the hole in the link pipe
Reply With Quote
Reply
  
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes
Postbit Selector
Switch to Vertical postbit Use Vertical Postbit

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Recent Posts - Contact Us - DSC Home - Archive - Top
Powered by vBulletin 3.5.4 - Copyright © 2000 - 2017, Jelsoft Enterprises Ltd. - © Ducati Sporting Club - All times are GMT +1. The time now is 02:42 AM.