Oil Sight Tube Replacement

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somwone
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Oil Sight Tube Replacement

Postby somwone » Sat Jul 12, 2014 1:49 am

So mine started leaking and there would be a small palm sized stain on the ground whenever I parked for a while. I bought some R/C fuel line off Amazon and it came in today. I couldn't get the line off the fittings, so I ended up cutting it off. The R/C line had the right outside diameter but the inside diameter was too small. I grabbed some tubing that I used for brake bleeding which fit pretty snuggly. I started up the bike, held the RPM's around cruising and watched the tube. Oil went through, no leaks. So...

Would I be okay with just some random brake bleed tubing, or do I run the risk of it popping off while riding or eventually deteriorating from the heat?
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Re: Oil Sight Tube Replacement

Postby KTMDark » Sat Jul 12, 2014 2:20 am

Just go to your local mower shop and get a bit of Tygon tubing used for fuel line on power equipment. I forget what size I got, but it fit perfect and got a foot for a couple of bucks. It is impervious to gas and oil and very flexible. It installs easily with the fittings in place, just lean the bike against the wall a few degrees to keep it from dripping during the swap. Install the bottom first in case of a drip. It fits nice and snug and didn't leak, but I used a couple of tiny zip ties for hose clamps just in case. Mine has been on for over a year now and looks the same as it did the day I put it on. I keep another piece in my tool kit just in case.

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Re: Oil Sight Tube Replacement

Postby ktmguy » Sat Jul 12, 2014 6:59 am

KTMDark wrote:Just go to your local mower shop and get a bit of Tygon tubing used for fuel line on power equipment. I forget what size I got, but it fit perfect and got a foot for a couple of bucks. It is impervious to gas and oil and very flexible. It installs easily with the fittings in place, just lean the bike against the wall a few degrees to keep it from dripping during the swap. Install the bottom first in case of a drip. It fits nice and snug and didn't leak, but I used a couple of tiny zip ties for hose clamps just in case. Mine has been on for over a year now and looks the same as it did the day I put it on. I keep another piece in my tool kit just in case.


+1 I did that and I even got half a meter just in case. Never needed it, surplus bits still sit under the seat.
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somwone
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Re: Oil Sight Tube Replacement

Postby somwone » Sun Jul 13, 2014 2:20 am

I went out last night and went about 50 miles with it. Checked it and no leaks whatsoever. I feel like it'll hold and do the job, but I'm going to go find a shop to and pick up some fuel line from them anyways, since that's apparently what's tried and true.

Thanks guys.
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Re: Oil Sight Tube Replacement

Postby Sarasota_Steve » Thu Jun 11, 2015 7:20 pm

KTMDark wrote:Just go to your local mower shop and get a bit of Tygon tubing used for fuel line on power equipment. I forget what size I got, but it fit perfect and got a foot for a couple of bucks. It is impervious to gas and oil and very flexible. It installs easily with the fittings in place, just lean the bike against the wall a few degrees to keep it from dripping during the swap. Install the bottom first in case of a drip. It fits nice and snug and didn't leak, but I used a couple of tiny zip ties for hose clamps just in case. Mine has been on for over a year now and looks the same as it did the day I put it on. I keep another piece in my tool kit just in case.


It is Tygon F 4040 A. I bought 12" for $1 5/32" ID = 4mm roughly.

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Re: Oil Sight Tube Replacement

Postby bic_bicknell » Thu Jun 11, 2015 7:48 pm

This is a common problem on SDs. Check that stupid pipe every time you clean the bike!
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Re: Oil Sight Tube Replacement

Postby KTMDark » Sat Jun 13, 2015 11:16 am

Yup! That's what I've got, Steve. Still using the original replacement and it still looks like the day I put it on!

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Re: Oil Sight Tube Replacement

Postby Sarasota_Steve » Tue Oct 04, 2016 2:16 pm

UPDATE:

After using the yellow Tygon tubing for a few thousand miles the inside of the tube got coated with oil and it turned non-transparent.

Unable to read the oil level anymore I replaced it with the bluish OEM tube.

The Tygon looks great as soon as you install it and for a while. It'll get you out of trouble in the short term, but it was not a permanent solution for my bike. Maybe it works for yours.

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Re: Oil Sight Tube Replacement

Postby SUPER DUKE #1 » Wed Oct 05, 2016 2:33 am

Has anyone replaced one with an O.E.M KTM part within the last year or so? I know that KTM realised they had issues with the original sight tube (hose) and went with new material. I think the U.S. distributor purged the original stock and replaced them with the new (identical looking) one. I have one on my SD and have had no problems............and of course now that I've made that statement :wink: :? :lol: . I would even bet that with KTM knowing the past issue your dealer could probably get a "goodwill" replacement for you.......if your dealer won't step up for you give a call or email to KTM customer service......seems like a potential safety issue, hate to see hot oil sprayed on you or your tyres :roll:

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Re: Oil Sight Tube Replacement

Postby orpheus » Wed Oct 05, 2016 9:19 am

I think KTM did improve / change the tube used, as my original hose split after about 3yrs and the replacement OEM is still going strong after 5yrs.

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Re: Oil Sight Tube Replacement

Postby No. 47 » Wed Oct 05, 2016 9:58 am

Never had to replace mine but it was lockwired for race use back in '08 so may have been upgraded then.
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Re: Oil Sight Tube Replacement

Postby Black Out » Tue Aug 07, 2018 6:50 pm

I cannot find this tygon tubing in 4mm or 5/32" anywhere. Even my local dealer could not pull it up on their schematic. :x
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Re: Oil Sight Tube Replacement

Postby gotswap » Wed Aug 08, 2018 1:40 pm

You try home depot or lowes in the lawn and garden section?
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Re: Oil Sight Tube Replacement

Postby Black Out » Wed Aug 08, 2018 2:08 pm

I went to several auto parts stores, Home Depot, Lowe's, a motorcycle shop including the dealer.There's a mower place I haven't tried yet.
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Re: Oil Sight Tube Replacement

Postby gotswap » Wed Aug 08, 2018 2:30 pm

There is always amazon, If needed. If I remember right, my hose was just a bit small and I stretched it on without issue.
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No. 47
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Re: Oil Sight Tube Replacement

Postby No. 47 » Wed Aug 08, 2018 3:21 pm

OE part no. 61038084000 is now superceded with 61038084100 so, as others have suggested, probably now upgraded to overcome earlier failures.
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Oil Sight Tube Replacement

Postby Black Out » Wed Aug 08, 2018 6:32 pm

Friend of mine told me about (Website blocked) where it was quickly located.

EDIT: I went to the website you suggested where I was promptly told my iphone had a virus and to call a toll free number. I did some research online to find it's a scam. DO NOT POST BOGUS WEBSITES ON THIS SITE OR YOU'LL BE BANNED!
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Re: Oil Sight Tube Replacement

Postby Black Out » Mon Aug 13, 2018 3:31 pm

I can't understand. I've been on their site and ordered from them before. Not bogus so not sure what happened. My bad though.
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