Sludge in Air Filter?

[Efes123]

Just changed the plugs, oil and filter, and air filter on my Honda VT500ED. When I took the old air filter out it was quite wet, and there was a chunk of brown sludge pooled in the bottom of the airbox.

I'm guessing that somehow water is mixing with oil and going through the air filter, but I have no idea where to start looking for this. Any suggestions appreiated.
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Honda Goldwing GL 1000 Current love
Honda VT500 ED - SOLD
Projects Suzuki GS125 Done, then stolen - Kawasaki GPX750R SOLD - Honda VF750S SOLD

[defblade]

You'll have an oil breather pipe coming up from the crankcase to the airbox (so that oil fumes get sucked through the engine and burned up, rather than laying in a film over the hedgerows) so that's where the oil is coming from. "Some" is Ok and normal, "lots" and blue smoke from the exhaust needs looking at.

But I would be more concerned about the filter being wet - been riding through big puddles recently?
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Honda Varadero 125cc => Suzuki Bandit 650 33bhp => 77bhp =>
BMW K1200R Sport 163bhp => Aprilia Shiver GT 750 95bhp

[Efes123]

[Taught2BCauti...]

Does your air filter box have a condensation trap? Usually a stubby rubber pipe on the bottom of the box, at the lowest point.

Sometimes these get blocked and condensation builds-up in the air box, eventually finding its way into the engine oil - which can be seen through the level sight-glass.

An effective cure is to replace the short rubber tube with a longer one of clear PVC hose, and check it regularly for clogging.
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Honda Varadero XL125(V8)
www.TheFutureIsHere.eu

[Efes123]