Can you solve the mysterious leak? Pic attached - 2015 DL650 - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 13 Old 05-24-2018, 10:24 PM Thread Starter
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Can you solve the mysterious leak? Pic attached - 2015 DL650

Hello my friends.

Seems my trusty Strom has developed a slow oil leak, or perhaps a weep (more accurately).

Trouble is, due to the combine forces of wind and gravity, and the slowness of the leak, I can't really tell where it's coming from. But, twice now I've spotted a drop forming on the little protuberances (now that's a word!) circled in the attached pic.

I'm anxious to root this out, because I have some big trips coming up this season and can't rest easy knowing I have a festering problem before I go.

Guesses and speculation gladly accepted.
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File Type: jpg leak.jpg (61.2 KB, 94 views)

- Suzuki V-Strom DL650 (2015)
- Honda CRF 250L (2014)
- Triumph Street Triple (2016)

Last edited by Thighrod; 05-24-2018 at 10:30 PM.
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post #2 of 13 Old 05-24-2018, 10:34 PM
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Directly above is a head gasket. Hope that's not the problem though.
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post #3 of 13 Old 05-24-2018, 10:47 PM
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wipe it all clean all the way as far up as possible, take it and ride and come back and use a flashlight with low light in the garage. Follow it up. Its there somewhere above that point. It could be as far up as your air filter if you use a K&N.
good luck.
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post #4 of 13 Old 05-24-2018, 11:04 PM Thread Starter
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Quote:
Originally Posted by jccity6 View Post
wipe it all clean all the way as far up as possible, take it and ride and come back and use a flashlight with low light in the garage. Follow it up. Its there somewhere above that point. It could be as far up as your air filter if you use a K&N.
good luck.
Just finished the cleaning part. Will try the low-light & flashlight thing next. Thanks, I hadn't heard that tip before.

- Suzuki V-Strom DL650 (2015)
- Honda CRF 250L (2014)
- Triumph Street Triple (2016)
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post #5 of 13 Old 05-24-2018, 11:15 PM Thread Starter
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Quote:
Originally Posted by locoblanco View Post
Directly above is a head gasket. Hope that's not the problem though.
Yes, and above that is the valve cover, which was my first suspicion, as it was off this winter for valve adjustment. But those seem to be the cleanest areas of the front cylinders...

- Suzuki V-Strom DL650 (2015)
- Honda CRF 250L (2014)
- Triumph Street Triple (2016)
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post #6 of 13 Old 05-25-2018, 01:04 AM
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What about the coolant hose and connections?

06 V-Strom DL650

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post #7 of 13 Old 05-25-2018, 07:55 AM
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Do the clean and ride process, then toss some talc or baby powder on the area. It will highlight the oil and the path it took.
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post #8 of 13 Old 05-25-2018, 10:39 AM Thread Starter
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Quote:
Originally Posted by John V Strom, Jr. View Post
What about the coolant hose and connections?
Nothing obvious coming from the hoses (but they are black, so it's hard to tell - regardless, the substance leaking is pretty clearly oil, so (hopefully) that's not in the cooling hoses...

Thanks

- Suzuki V-Strom DL650 (2015)
- Honda CRF 250L (2014)
- Triumph Street Triple (2016)
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post #9 of 13 Old 05-25-2018, 10:42 AM Thread Starter
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Do the clean and ride process, then toss some talc or baby powder on the area. It will highlight the oil and the path it took.
Thanks, I'll try that. I'm crossing my fingers that "the area" is visible (within line of site and not obscured by tank/frame etc).

- Suzuki V-Strom DL650 (2015)
- Honda CRF 250L (2014)
- Triumph Street Triple (2016)
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post #10 of 13 Old 05-25-2018, 12:20 PM Thread Starter
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One strange thing of note, in the course of removing my crash bars (for better engine access), I had to remove the long engine mounting cross bolt. I was surprised to see what looked like a film of engine oil on that bolt. Quite strange how oil would ever migrate (or leak) in that area.

Hmmmm

- Suzuki V-Strom DL650 (2015)
- Honda CRF 250L (2014)
- Triumph Street Triple (2016)
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