Did Valve adjutment and found this inside right valve cover

[muamero]

Removed left did valve adjust no problem. Moved on to right and immediately up on removal this dropped in the oil pan.


photo hosting


its rubber I believe,bike currently has 11k on it I owned it since 4k. Anyone has any clue what it is or where it came from

[riceburner]

what diameter is it?

[muamero]

Half inch bro, nothing unusual going on with the bike at all. No noise, leaks, oil pressure up right on start up. What gives?

[riceburner]

Half inch bro, nothing unusual going on with the bike at all. No noise, leaks, oil pressure up right on start up. What gives?

tbh, I've no idea - never seen anything like it (that I can remember). But having the diameter may help someone else figure it out.

[gregor]

By 'oil pan', did you mean as in American terminology the sump ie the finned casting underneath the engine ? I'd guess it is a part of a rocker cover gasket. Maybe left over from a previous strip down.

[sweatmark]

Looks like FOD, no relation to bike. Took a quick scan through the parts fiche just now, looking for anything that might resemble your mystery part. Nada.

So, my guess is that it's something inadvertently picked up by the valve cover when the valves were done in the past.

[CycleRob]

It sure does look like FOD*. Possibly a broken piece of a cap retainer lanyard like would be on a small lens cleaner or special lube oil bottle.


* ForeignObjectDamage - - an aviation term for small stones, twigs, metal/plastic/glass/rubber pieces usually blown or dropped onto the runway/taxiway/paved areas.

[sjbmw]

It looks like the ring that some oil bottles use to keep the cap on the bottle after opening.
It appears as disconnected from it's cap.

[sweatmark]

On second thought, that has to be the missing part needed to make the mystery rear subframe loop effective as bottle opener.

[muamero]

Thank you guys, that's the answer I was hoping to hear. And no when I said Oil pan I meant the pan I put under the bike to catch oil that spills out.

[Oilhead]

So the clues are it's 1/2" in diameter, made of rubber, and it looks like the original color was black...

My guess is that it must be the other end of the brake/clutch bleed screw nipple cover. Not the cover that goes over the bleed nipple but the other end that goes under the screw to prevent losing the nipple cover.

[Keppelj]

Interesting puzzle because it does look so very familiar. Lanyard for the bleeder sounds right enough, but the model in my mind's eye for that thing is bigger than that.