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Old 1 Week Ago
dirty1 dirty1 is offline
dbw Pro
Join Date: Mar 2009
Posts: 70
Pull the oil filter out of it. Cut the element paper out of it, stretch it out and have a good look. If its picked up a cam bearing or started to eat itself internally there will be metal contamination on the filter paper. A few flecks is normal.... lots is not
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Old 1 Week Ago
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hairyone hairyone is offline
dbw Pro Champion
Join Date: Apr 2004
Location: Canberra
Posts: 4,217
If the cam-journals have run-dry it likely would have-then chewed/ground some aluminum out of the head.
As stated above, thanks for that dirty1, inspect the oil-filter for any signs of ground-aluminum type-paste.

Run/blip the engine with the oil-filler cap off... observe & listen for blow-by which is an indication of rooted-rings.
As I've mentioned above... a screwdriver makes for a good/makeshift stethoscope with the blunt-end in your ear.

In lieu of lock-wiring as-was suggested above by Mike_H ... I'll often use a little blob of Epoxy-Putty...
It's easily chipped-off without any damage whatsoever... It's good for when threads are a bit suss too.

Speaking of Epoxy Blobs... I like/prefer my handlebar-levers to be movable/loose on the bars; yet-not to move.
I've managed to achieve this apparently duplicitous act/function via the judicious use of a blob & a grub-screw.
The More I Learn... The Less I Know.
That Which Doesn't Change... Stays The Same.
Those That Don't Fall... Just Aren't Trying Hard Enough.
Genius or Idiot... Sadly it's Defined by the Mediocre Masses... With their Hindsight.
Dicklaimer... The Text above is to be Evaluated by a Responsible Person... Prior to Any Action Being Taken.

*George Carlin*What We Do*No Bravery*Tell the Truth*911*Genetic Armageddon*Carbon Tax*Interplanetary Climate Change*Fracking*Shock Doctrine*Extinction Protocol*
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Old 1 Week Ago
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disco disco is offline
dbw Pro Hall of Fame Member, Seeker of the burger.
Join Date: May 2002
Location: In an existential vacuum.
Posts: 20,265
Prob ok if some was still left coming out when you pulled up, but yeah - take the rocker cover off and see if there is any drag on the buckets etc. I did the same thing and ended up taking the piston out just to be sure. I don't like assuming...
Whenever you find yourself on the side of the majority, it is time to pause and reflect.
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Old 1 Week Ago
DaoRadivo DaoRadivo is offline
DBW Expert
Join Date: Oct 2013
Posts: 1,458
Just YOLO it to the rev limiter a few times.
Originally Posted by ggchris View Post
Perhaps we should be united by giving a shit about each other? A little kindness? A little recognition that the only currency that is worth anything is happiness and contentment. The exchange rate is fantastic, too... give a little away and you get more back.

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Old 1 Week Ago
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Spac Spac is offline
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Join Date: Jun 2005
Location: A bit out of Canberra.
Posts: 8,582
Excuse my ignorance... does a 2016 YZF250 have separate oil for the motor and the gearbox?

If itís just the gearbox, then my money would firmly be on there being no long term consequences.
If itís just the motor oil, or combined motor/box oil, then I agree with the popular opinion.
Everything from an XL175 to a Beta 300 to a Hodaka Wombt to a KX500.
They're all fun.
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Old 1 Week Ago
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chopp chopp is offline
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Join Date: May 2011
Posts: 188
thanks everyone. oil is motor and gearbox. will pull cover and check filter.cheers
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