How do you remove the oil jet

Here be mechanigeeks. Anything technical that is not a teething problem.
STU
250cc
250cc
Posts: 56
Joined: Sun Nov 06, 2011 11:18 am
Country: England
City: Exeter
Year: 2010
Colour: White

How do you remove the oil jet

Post by STU » Thu Mar 21, 2013 9:05 pm

Checked the oil jet for the clutch lubrication today and it was a pain in the ass to get out, in the end I used blue-tac just wandered if there is a better way of doing it?

ultrachrome
675cc
675cc
Posts: 237
Joined: Thu Apr 14, 2011 11:14 pm
Country: USA
City: Seattle
Year: 2011
Colour: White

Re: How do you remove the oil jet

Post by ultrachrome » Fri Mar 22, 2013 5:42 am

Luckily I had a long screwdriver bit that fits just tight enough to lift it out but deep enough to loosen or tighten without stripping. I even engraved it so I can find it again.

lcjohnny
675cc
675cc
Posts: 249
Joined: Sat Jan 19, 2013 2:01 pm
Country: Uk
City: Bristol
Year: 2009
Colour: Silver
Model: SMT
Location: sometimes

Re: How do you remove the oil jet

Post by lcjohnny » Sat Mar 23, 2013 6:52 pm

I used a length of plastic tube - dropped it down on top of the loose jet - sucked and lifted the jet out.
It also worked well putting it back so it dropped thread side down :D
Jon
-------------------------
Sold it. Got an Aprilia Shiver

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Sun Sep 15, 2013 6:34 pm

Where is the oil jet located ? I think I better check mine as its just had an oil change.

lcjohnny
675cc
675cc
Posts: 249
Joined: Sat Jan 19, 2013 2:01 pm
Country: Uk
City: Bristol
Year: 2009
Colour: Silver
Model: SMT
Location: sometimes

Re: How do you remove the oil jet

Post by lcjohnny » Sun Sep 15, 2013 7:27 pm

It is in a vertical drilling behind the final drive sprocket just left of the bearing housing.

An Allen key plug blocks the top of the drilling

Jon
Jon
-------------------------
Sold it. Got an Aprilia Shiver

rmauri
125cc
125cc
Posts: 30
Joined: Sun Nov 04, 2012 3:45 am
Country: USA
City: Antioch
Year: 2013
Colour: White

How do you remove the oil jet

Post by rmauri » Tue Sep 17, 2013 3:02 pm

I put a wad of twisted duct tape, sticky on the outside, around the end of a drill bit.
Put it in the hole, applied pressure, then lifted it out.

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Tue Sep 17, 2013 9:36 pm

Thanks for the replies guys, I found a good post with pictures on another site which made things much clearer. It seems as though the hardest bit is lifting the jet from the hole when it is unscrewed, the guy on there used a hair clip with the blobs removed from the ends. Has anyone tried increasing the hole size of the jet ? I found a couple of posts recommending larger jets for racing.

ultrachrome
675cc
675cc
Posts: 237
Joined: Thu Apr 14, 2011 11:14 pm
Country: USA
City: Seattle
Year: 2011
Colour: White

Re: How do you remove the oil jet

Post by ultrachrome » Tue Sep 17, 2013 10:21 pm

have you seen this thread? http://www.advrider.com/forums/showthread.php?t=196367

To remove mine, I use a quick-change style screwdriver bit with a bit ratchet handle. I had an assortment and found one that gets a good bite while nicely wedging into the oil jet so I can easily lift it out.

example: Image

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Wed Sep 18, 2013 8:09 pm

Had a good read of the advrider thread, there doesn't seem to be a consensus as to whether opening up the oil jet is a good or bad idea. Looks as though opening a bit is ok but too much causes other issues such as problems selecting neutral. I was just wondering whether more oil would improve the gearchange ? I might buy a replacement jet slightly larger than standard and give it a try. I have found a couple of the hollow ground interchangeable bits so hopefully removal shouldn't be a problem.

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Fri Sep 20, 2013 7:40 pm

Managed to spend an hour tinkering today and took out the oil jet, suggestions were spot on - hollow ground screwdriver bit aprox 8mm wide and 1mm thick with a 6mm ring spanner did the job perfectly. The jet was blocked solid, After failing with an airline l used a 0.3mm pcb drill to clear out the hole which was blocked right through ! I then opened up the hole to 0.4mm with another drill. I haven't had a ride yet but will hopefully get out this weekend :D

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Sun Sep 22, 2013 2:47 pm

Just got back from a 120 mile ride, what a difference a tiny pin hole makes ! Back to a 2 finger flick of the clutch during gearchanges instead of a handful and count to 3, and not a single false neutral. I would urge anyone who is having gearchange or clutch issues to check the oil jet. I just hope that's the last issue with the bike as its running great now :D

Bug
675cc
675cc
Posts: 219
Joined: Tue Jan 18, 2011 9:39 pm
Country: United Kingdom
City: West Wales.
Year: 2010
Colour: Silver
Model: SMT

Re: How do you remove the oil jet

Post by Bug » Mon Sep 23, 2013 9:30 pm

I have yet to do this, even though I remember reading about it years ago on my previous Superduke forum.

Question, Is it necessary to remove the clutch slave cylinder to peform this, or just the front sprocket cover, and oil jet cap?

I read of some doing this by just removing the cap and using guitar string wire to push through the oil jet
(High E .010 steel string to be exact) that worked well.

You would think KTM would have this as part of the service schedule.
2010 KTM SMT
Image
2012 KTM 690 Duke
Image

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Mon Sep 23, 2013 9:52 pm

It is part of the service schedule but only at the major service, I will be doing mine at every oil change. You could probably get away without removing the slave cylinder but it makes access easier and is only held on with 2 screws, you don't need to touch the hydraulics but don't pull the lever with it removed. I read about using a guitar string but there's no way it would have cleared mine plus you are pushing the crap back to where it came from so there's nothing to stop it going straight back into the jet when you start the engine again.

Bug
675cc
675cc
Posts: 219
Joined: Tue Jan 18, 2011 9:39 pm
Country: United Kingdom
City: West Wales.
Year: 2010
Colour: Silver
Model: SMT

Re: How do you remove the oil jet

Post by Bug » Tue Sep 24, 2013 1:44 am

Yes, your right, it's in the service schedule in the major services now having read it properly.
I agree, seems daft to push the dirt into the engine for it only probably to return later.
Like you said, this is best done in conjection with an oil change.

You say only two screws for the clutch slave, no gaskets then ?, as my old VFR has a gasket fitted at its clutch slave.
2010 KTM SMT
Image
2012 KTM 690 Duke
Image

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Tue Sep 24, 2013 8:49 pm

There are no gaskets, there is a plastic piece that is sandwiched between the slave cylinder and the engine that secures the steel chain guide. I removed this completely to give better access, I also unscrewed the regulator/rectifier to make things easier as it sits directly above the jet. Be careful not to lose the small pin in the clutch pushrod, this needs to be aligned with a slot in the plastic piece on reassembly. It sounds more complex than it actually is, the most important thing is to use the correct screwdriver bit so you don't chew up the head of the brass oil jet.

User avatar
gotgoat
250cc
250cc
Posts: 72
Joined: Fri May 28, 2010 6:14 pm
Country: canada
City: quesnel bc
Year: 2010

Re: How do you remove the oil jet

Post by gotgoat » Wed Sep 25, 2013 6:03 pm

A couple of questions. How often should u check the oil jet. And what does it do.I didn't even know about it. Iam really on my maintenance but now I feel stupid. I didn't see it in the manual. I'll have to read it again. I have over 30,000. K on it :oops: :oops:
81gs750e, 76rd400,05wr250,96xr400.

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Wed Sep 25, 2013 6:41 pm

I am no expert on the Subject but it is supposed to be checked every major service which is every 2 years or 15000 km according to the handbook. I will be doing mine every oil change from now on. From what I can gather it feeds oil down the clutch pushrod tube and into the clutch basket to lubricate and cool it.

User avatar
gotgoat
250cc
250cc
Posts: 72
Joined: Fri May 28, 2010 6:14 pm
Country: canada
City: quesnel bc
Year: 2010

Re: How do you remove the oil jet

Post by gotgoat » Thu Sep 26, 2013 2:42 am

I will be check mine this weekend. Thank u .
81gs750e, 76rd400,05wr250,96xr400.

User avatar
limeyduffa
675cc
675cc
Posts: 266
Joined: Tue Mar 15, 2011 9:22 am
Country: Australia
City: Adelaide
Year: 2012
Colour: Black

Re: How do you remove the oil jet

Post by limeyduffa » Mon Aug 17, 2015 1:23 pm

budgesrsv wrote:I then opened up the hole to 0.4mm with another drill. I haven't had a ride yet but will hopefully get out this weekend :D
I would be cautious about doing that. I put trust in the engineers, especially since the LC8 motor had matured by 2011/2012. From my 2nd hand knowledge (I am parroting this), the jet supplies the right amount of oil to the clutch assembly. 0,3mm is a tuned diameter.

Just out of interest, back in my 2006 Superduke days, this blocked jet would cause the oil to get squirted through the clutch push rod seal causing oil to leak though it (it would do people's heads in - including mine - because replacing the seal wouldn't fix the problem). I checked my jet every oil change after reading this fix. Comparing jet types, I don't think the jet hole diameter has changed from 2005/06 model to the 2011/12 model.

The manual says remove the jet and clean. Then replace jet, torque to 4Nm with some Loctite 243. That's what I'll be doing :)

budgesrsv
990cc
990cc
Posts: 637
Joined: Wed Dec 12, 2012 10:18 pm
Country: uk
City: manchester
Year: 2011
Colour: Black

Re: How do you remove the oil jet

Post by budgesrsv » Mon Aug 17, 2015 9:02 pm

Mines now done around 6000 miles with the opened up jet with no problems. It has also been clear of shit when I've checked it during oil changes :D

Post Reply