Ducati Sporting Club UK
 
 
Thread Tools Search this Thread Display Modes
Old 30-Dec-2005, 00:29   #1
tebby tebby is offline
Registered Forum User
 
Posts: 11
Join Date: Dec 2005
Mood: dissapointed
ST4S vibration
Recently took delivery of an ST4S after 7 years with one
of the first ST2's to come into the country (australia),
The bike has a vibration which comes back through the bars which is especially bad at 2700-3500 rpm in 2nd & 3rd gears.
more pronounced on deceleration.
sounds & feels like a bearing, anyone have a similar issue??
In general there seems to be a high frequency "buzz" throughout the whole rev range.
bike was poorly pre delivered (not at all)
& came back from its 1000k service with a tight chain which I rode for about 200k's before investigating.
their apperars no damage to chain or sprokets/bearings.
cheers
tebby
Reply
Old 30-Dec-2005, 12:03   #2
Derek Derek is offline
Registered Forum User
GTL
Bikes: ST4s ABS
Derek's Avatar
 
Posts: 480
Join Date: Aug 2003
Location: Tayside, Scotland
Mine had similar problems until I loosened the chain. A buzz at around 30-35mph with vibration through the bars and a howl at around 60-65mph (twice the frequency?). I thought a rear wheel bearing, or worse the gearbox output shaft bearing, was at fault. Make sure that there is at least an inch and a half movement of the chain. This is more than the manual says but it seems to need it. I know of another ST4s owner who has also experienced this.
Reply
Old 30-Dec-2005, 12:52   #3
Rushjob Rushjob is offline
Registered Forum User
Big Twin
Rushjob's Avatar
 
Posts: 1,802
Join Date: Apr 2002
Location: Lincs
Mood: :-)
Yep... same here.
Reply
Old 30-Dec-2005, 14:25   #4
Glyn Glyn is offline
Registered Forum User
Ducati Meccanica
Glyn's Avatar
 
Posts: 2,505
Join Date: Sep 2003
Location: lost in space
Mood: st2......we can rebuild
a bad front wheel balance can have an amazingly bad effect on the bike an all
Reply
Old 31-Dec-2005, 14:26   #5
ST4S ST4S is offline
Registered Forum User
 
Posts: 1
Join Date: Dec 2005
Same here with the chain tension. It can be quite difficult to allow the chain to run as slack as the ST requires, it's so tempting to tighten it, but they definitely need to be loose.
Reply
Old 02-Jan-2006, 11:09   #6
tebby tebby is offline
Registered Forum User
 
Posts: 11
Join Date: Dec 2005
Mood: dissapointed
Thanks for the replies guys,
Just got back from a short trip to read the feedback,& feel slightly better to know others have had the same problem.
I just fitted a Scott oiler as well to give the drive train as easy a time as possible.
I'll slacken the chain a litle more & report back.
This week in & around Melbourne is forecast to be good riding weather so I'll put some K's on & see what happens.
Stay tuned.
Reply
Old 02-Jan-2006, 18:34   #7
YMFB YMFB is offline
Registered Forum User
Ducati Meccanica
Bikes: R1200RT F800GS. Hopefully another Ducati soon
YMFB's Avatar
 
Posts: 2,526
Join Date: Apr 2005
Location: Salisbury
Quote:
Originally posted by tebby
Thanks for the replies guys,
Just got back from a short trip to read the feedback,& feel slightly better to know others have had the same problem.
I just fitted a Scott oiler as well to give the drive train as easy a time as possible.
I'll slacken the chain a litle more & report back.
This week in & around Melbourne is forecast to be good riding weather so I'll put some K's on & see what happens.
Stay tuned.

any chance of some photos of the scottoiler after its been fitted ?

How long did it take you to fit it and which model did you fit.

Cheers
Reply
Old 02-Jan-2006, 22:47   #8
tebby tebby is offline
Registered Forum User
 
Posts: 11
Join Date: Dec 2005
Mood: dissapointed
fitted the universal mark7
took about one & a half hours,
will take some shots & post tomorrow,
pretty straight forward.
cheers
tebby
Reply
Old 02-Jan-2006, 23:28   #9
YMFB YMFB is offline
Registered Forum User
Ducati Meccanica
Bikes: R1200RT F800GS. Hopefully another Ducati soon
YMFB's Avatar
 
Posts: 2,526
Join Date: Apr 2005
Location: Salisbury
cheers that would be great
Reply
Old 04-Jan-2006, 01:51   #10
tebby tebby is offline
Registered Forum User
 
Posts: 11
Join Date: Dec 2005
Mood: dissapointed
Scott oiler
Quote:
Originally posted by YMFB
cheers that would be great
Steve,

I noticed a post with pictures which started 8/4/04,This is pretty much as i did. Rushjob is the username of the bloke who posted the pics,
I'll do a couple anyway especially of the vac; takeoff,
hope this helps in the meantime,
cheers
tebby
Reply
Reply
  
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes
Postbit Selector

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 - 2025, Jelsoft Enterprises Ltd. - © Ducati Sporting Club UK - All times are GMT +1. The time now is 17:59.