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Source of small oil leak?

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becker
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Source of small oil leak?

#1 PostAuthor: becker » Fri Jul 11, 2025 8:09 pm

Got a small oil leak on Z1B - its dripping off the sump fins on left of bike, but is clearly running down from somewhere - thought it might have been the neutral switch but not sure it is - almost seems like it might be the bolt hole for the cover? Is that possible?
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When life hands you lemons, reach for the vodka.

Z1B (in Z1A colours), Z1000A1, ZRX1100 C4, Suzuki TS125J (being restored), Suzuki T125J (in boxes), Garelli Rekord MKII (awaiting restoration), most of a Garelli Rekord MKI

r3sc
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Re: Source of small oil leak?

#2 PostAuthor: r3sc » Fri Jul 11, 2025 8:13 pm

I would say it was more likely the gear change shaft seal!

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warren3200gt
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Re: Source of small oil leak?

#3 PostAuthor: warren3200gt » Fri Jul 11, 2025 8:27 pm

Normally any oil leak in that area is from the alternator wire grommet. They pretty much all leak there unless it's been gasket goo'd in recently.
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76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.

gray
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Re: Source of small oil leak?

#4 PostAuthor: gray » Sun Jul 13, 2025 6:51 pm

chain lube especially if you've got a chain oiler will fling itself off the gearbox sprocket and run down the rear LHS of engine and then sump, causing these symptoms too.
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