ST4S vibration

[tebby]

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

[Derek]

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.

[Rushjob]

Yep... same here.

[Glyn]

a bad front wheel balance can have an amazingly bad effect on the bike an all

[ST4S]

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.

[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.

[YMFB]

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

[tebby]

fitted the universal mark7
took about one & a half hours,
will take some shots & post tomorrow,
pretty straight forward.
cheers
tebby

[YMFB]

cheers that would be great

[tebby]

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

[YMFB]

Tebby,

Maybe its because Ive been up to long but I cant find rushjobs thread, can you give me the title of it, cheers.

Did you manage to get some pics ?

Cheers
Steve

[tebby]

I don't know the thread, but his name is Andy & he replied on
8/4/2004.
just type in Scott oiler to the search function in the message board & the Q&A's will come up.
some pics attached.

[tebby]

final feed

[tebby]

resevoir mounting.
just run the tubing inside the frame down past the footrest bracket & leave a little slack to the swing arm.
I superglued a small section of the soft push in channel about 2" long underside of the swingarm to provide a secure starting point for the tube.
I used a scott oiler on a triumph trophy tourer, (one of the early ones of the new generation) & it worked great.
keeps the chain clean & crap off of the rear wheel once you have it set right.

[tebby]

view from footrest showing tube feeding under swingarm.
you can add a few more zip ties to make sure the tube stays
hidden but it's no big deal if it shows, it's a minor cosmetic
flaw for a mojor riding benefit.

hope these are of some help.
cheers
Tebby

[rockhopper]

Mine is the same except i used clear cable ties so they don't stand out so much and i glued the feed tube to the underside of the swingarm so its hardly visible.
I think Andy arranged his so it drips onto the front sprocket.

[Rushjob]

No he didn't................
:lol:

[Rushjob]

Here's the thread with photos........
Scottoiler thread (http://www.ducatisportingclub.com/xmb/viewthread.php?tid=7952#pid65515)
Hope it helps!

[YMFB]

guys thanks a bunch, i expect to receive my Scott Oiler Mk7 universal kit tomorrow and will fit it over the weekend armed with some great photos and tips.

Rockhopper is your feed tube still stuck to your swinging arm ? if so what did you clean it with and what glue did you use ?

[rockhopper]

I might have meant another Andy!!

My kit came with a length of soft plastic that you pushed the feed tube into. The other side was flat. You just glue it to the underside of the swingarm. There was also some superglue in the kit which has now held for almost three years.

Scottoiler don't recommed feeding the front sprocket anyhow, they say that the higher speed of the sprocket compared to the rear one flings the oil off before it has time to work.

[rockhopper]

I'll take some pics at the weekend. Its a bit difficult at the mo cos i need to move the Monster which isn't easy with a broken arm. Also i parked the car too close to the doors and i can't get them open.

[YMFB]

Originally posted by rockhopper
I'll take some pics at the weekend. Its a bit difficult at the mo cos i need to move the Monster which isn't easy with a broken arm. Also i parked the car too close to the doors and i can't get them open.

cheers mate please dont go to any more trouble especially in your predicament, id hate to hear you had dropped it trying to get me pics.

Cheers
Steve

[John W]

Mine is fitted in the same way, and fitted to the underside of the swinging arm. I stuck it using the superglue that came in the kit. I cleaned the underside of the s/a with 'a545 protect & shine' spray. One of the places has become unstuck now, but it doesn't hang down so I've left it as is.

I have also fitted a 'viper' dual feed end, so it oils both sides of the chain, which works a treat. The two tubes rub on either side of the rear sprocket which then throws the oil out into the chain.

I did try feeding oil to the front sprocket as mentioned in the posted link, but found it kept eating the end of the tube ! :rolleye:

[Edited on 5-1-2006 by John W]

[YMFB]

Originally posted by John W
Mine is fitted in the same way, and fitted to the underside of the swinging arm. I stuck it using the superglue that came in the kit. I cleaned the underside of the s/a with 'a545 protect & shine' spray. One of the places has become unstuck now, but it doesn't hang down so I've left it as is.

I have also fitted a 'viper' dual feed end, so it oils both sides of the chain, which works a treat. The two tubes rub on either side of the rear sprocket which then throws the oil out into the chain.

I did try feeding oil to the front sprocket as mentioned in the posted link, but found it kept eating the end of the tube ! :rolleye:

[Edited on 5-1-2006 by John W]

John is that the dual dispensor ?

C:\Documents and Settings\Manager\Desktop\VFR800_sprocket2.jpg

[YMFB]

and another



[Edited on 5-1-2006 by YMFB]

[tebby]

Well loosened the chain to 50mm free play when the bikes on the centre stand, interestingly with a pillion on board when I reached down to check,the free play was still only about 5mm.I wonder if this is enough!?
vibration has improved maybe 20% but still there.
When I adjusted the chain, the wheel as returned from the dealer after a smaller frtont sproket had been fitted & engine tuned, still squeaked.
The dealer had said to ignore the swing arm graduations & that they used a laser to line up the wheel.
When I checked the graduations, they were exactly the same measurement from the back of the swingarm on each side. I measured the rear of the axle to the rear of the swingarm & re adjusted & the squeak vanished!

[YMFB]

Originally posted by tebby
Well loosened the chain to 50mm free play when the bikes on the centre stand, interestingly with a pillion on board when I reached down to check,the free play was still only about 5mm.I wonder if this is enough!?
vibration has improved maybe 20% but still there.
When I adjusted the chain, the wheel as returned from the dealer after a smaller frtont sproket had been fitted & engine tuned, still squeaked.
The dealer had said to ignore the swing arm graduations & that they used a laser to line up the wheel.
When I checked the graduations, they were exactly the same measurement from the back of the swingarm on each side. I measured the rear of the axle to the rear of the swingarm & re adjusted & the squeak vanished!

Has anyone else used a laserline to align the back wheel, Im sure they are cheap enough from B & Q ?

[Derek]

Originally posted by YMFB
Has anyone else used a laserline to align the back wheel, Im sure they are cheap enough from B & Q ?

I'd never though of using a laser. I just bought one from Aldi for £8.49. Thanks for the tip.

[John W]

Steven,

yes, the 'viper' is basically the end bit as shown in those links you posted. Sorry for delay in posting - very busy so only getting the occasionaly evening to try to keep up on the posts.

Never used a laser line. I use a 1.8m spirit level lifted off the floor by a couple of bits of 4x2 timber. I then line it up across the edge of the tyre and check I have a similar clearance either side of the front wheel. once you have it set you just need to ensure you put the same number of turns on each side when you adjust the tension :burn:

[YMFB]

what setting have you guys got your scott oilers set on ?

I fitted mine last week, primed it but didnt get the oil all the way out just 1/3 down the discharge line, set in on no.1 and went for a ride yesterday forgot to check it until I got back and if the oil has moved it ain't far. Ive turned it up but would be pleased to know what you have yours set on.

[rockhopper]

Fairly pointless exercise as far as my bike is concerned. The oil is thicker in the cold weather so you'll need to turn it up a bit and i don't ride in the cold weather!

Just keep on turning it up till the oil drips at about one drop per minute at tickover. You'll find that in reality this is too much so you can back it off a fair bit. I don't get any mess on the wheel.

[tebby]

Originally posted by rockhopper
Fairly pointless exercise as far as my bike is concerned. The oil is thicker in the cold weather so you'll need to turn it up a bit and i don't ride in the cold weather!

Just keep on turning it up till the oil drips at about one drop per minute at tickover. You'll find that in reality this is too much so you can back it off a fair bit. I don't get any mess on the wheel.

Mate,

you need to use the filler bottle to "prime" the system first.
If it's only1/3 way down the tube it wont go any further until you do.Connect the filler tube & use the bottle to "pump" the system until oil comes out, it's then primed.
You should only need it set to around 2 for it to feed OK after that, DONT repeat DONT run it on the prime setting or you'll get a rear wheel covered in oil folowed by a get off on the first left hander.

[rockhopper]

Correct. The prime setting bypasses the vacuum requirement from the engine and just makes the oil flow out without the motor running if i remember correctly.

[John W]

There is a thinner oil for use in cold weather. I think it is a different colour from the normal blue oil.

I normally have mine set to about 4. This means the reservoir will last for over 1000 miles per fill. I also carry a small bottle of extra oil so I can fill it up while away on our longer trips.
I turn mine up if the weather is pants as the rain and road spray washes most of the oil off the chain...

[YMFB]

I kept the oil inside for a couple of days and just went out and primed it all the way through, if i get chance tomorrow I start the bike up and see what happens.