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 Engine makes "clacking" noise all the time

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slovenian6474




PostSubject: Engine makes "clacking" noise all the time   Tue Nov 14, 2017 10:32 pm

Heyo, shooting this out to the experts here.  I have an '08 WR250R with ~38k miles on it.  It's been making this clacking noise from the engine (follows RPM of the engine) all the time.  It was also making the traditional cam chain noise when starting but that would go away after a 30-60 seconds.  I fixed that with a manual cam chain tensioner.  The clacking in the below video has been going on for a bit.  I figured it might be cam shim and check those. They were on the border tight so I adjusted them to just in spec on the loose side. The noise was there before the cam shim adjustment and after the adjustment.  My brother has his WR250X here and it doesn't make this clacking at all. Any ideas on what I should check?
Video of noise
https://drive.google.com/file/d/13PVGRZIOgwsbTshTcXKzazDRcDhHjGUJ/view?usp=sharing
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YZEtc

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PostSubject: Re: Engine makes "clacking" noise all the time   Wed Nov 15, 2017 3:17 am

38,000 miles?
Could it simply be time for an engine overhaul?
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Jens Eskildsen




PostSubject: Re: Engine makes "clacking" noise all the time   Wed Nov 15, 2017 5:53 am

Tight valves wont make noises, only loose will.

Camchain-noise should go away as the rpm rises, so it shouldnt be that either, but you could check the tension anyway.

Might just be pistonslap. Does it use any oil at all?
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slovenian6474




PostSubject: Re: Engine makes "clacking" noise all the time   Wed Nov 15, 2017 10:51 am

Jens Eskildsen wrote:
Tight valves wont make noises, only loose will.

Camchain-noise should go away as the rpm rises, so it shouldnt be that either, but you could check the tension anyway.

Might just be pistonslap. Does it use any oil at all?

Performance-wise, it runs perfectly fine. It doesn't burn or leak any oil. Other than the noise itself, you wouldn't think anything was wrong.

I also hope 38k miles isn't time for engine overhaul. I have bikes with much higher mileage that the engine is still going fine. But if it needs it, it needs it.
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dicklane625

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PostSubject: Re: Engine makes "clacking" noise all the time   Thu Nov 16, 2017 10:52 am

I didn't listen to video, so this is probably answered in it, but is it just the skid plate noise? They do change the way the engine sounds quite a bit. I've noticed the noise mine makes will vary with how tight the bolts are on it. Have you tried pulling it off if you have one?
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slovenian6474




PostSubject: Re: Engine makes "clacking" noise all the time   Fri Nov 17, 2017 1:33 pm

dicklane625 wrote:
I didn't listen to video, so this is probably answered in it, but is it just the skid plate noise? They do change the way the engine sounds quite a bit. I've noticed the noise mine makes will vary with how tight the bolts are on it. Have you tried pulling it off if you have one?

Thanks for the suggestion. It does have a skid plate that's been on it since I bought it from the original owner. He put rubber between the bottom of the skid plate and the frame, I'm guessing for that exact reason. I don't think it's skid plate noise though. I can try it though.
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johnkol




PostSubject: Re: Engine makes "clacking" noise all the time   Sat Nov 18, 2017 2:34 am

Hmmm, I didn't hear a clanking sound; what I heard sounded perfectly fine.
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jotis




PostSubject: Re: Engine makes "clacking" noise all the time   Sat Nov 18, 2017 1:32 pm

Mine sounds the same at 800 miles. I call it a tractor because of that. If you take of the skid plate it will probably be a bit less pronounced, even with the skid plate insulation, because it still reflects some of the sound up.
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rsteiger

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PostSubject: Re: Engine makes "clacking" noise all the time   Sat Nov 18, 2017 2:16 pm

Sounds like mine.. 16,000 miles
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slovenian6474




PostSubject: Re: Engine makes "clacking" noise all the time   Mon Nov 20, 2017 10:29 am

jotis wrote:
Mine sounds the same at 800 miles. I call it a tractor because of that. If you take of the skid plate it will probably be a bit less pronounced, even with the skid plate insulation, because it still reflects some of the sound up.

rsteiger wrote:
Sounds like mine.. 16,000 miles

So does this fall under normal and not to worry about it?
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morgan9283




PostSubject: Re: Engine makes "clacking" noise all the time   Tue Nov 21, 2017 12:44 pm

slovenian6474 wrote:
jotis wrote:
Mine sounds the same at 800 miles. I call it a tractor because of that. If you take of the skid plate it will probably be a bit less pronounced, even with the skid plate insulation, because it still reflects some of the sound up.

rsteiger wrote:
Sounds like mine.. 16,000 miles

So does this fall under normal and not to worry about it?

Mine sounds sounds the same.  Yours might be a little more pronounced though it's hard to say for sure without the two bikes next to each other but I'd say monitor the oil for usage but just ride it.

-morgan
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