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Post by swordfish81 on May 16, 2005 12:07:34 GMT -5
I have a SR500 that hasn't run for a number of years, but when I start it, oil pumps out the breather. I'm thinking stuck rings, doesn't appear to be overfull. I'm trying to avoid stripping it down. Any clues anyone?
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Post by canucksr on May 17, 2005 10:27:59 GMT -5
That's pretty strange having oil pump out the breather. Maybe the oil filter or strainer is clogged up. You should check to see if oil is being sent to the top-end. Loosen the oil line bolt a bit and check for oil flow. You could also remove the bottom cover of the motor and clean out the strainer.
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Post by swordfish81 on May 18, 2005 9:44:21 GMT -5
Thanks canucksr, will try suggestions and advise
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Post by yknot057 on Jul 4, 2005 5:38:01 GMT -5
Hi Guys,
This thread might not still be active but I bought an SR that came with a cracked piston, blew oil everywhere.
Just another thought.
Steve C
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Post by Bronson7 on Jul 6, 2005 8:21:07 GMT -5
Swordfish, it does sound like broken/stuck rings or piston. Blowing oil out the breather is a classic sign. Have you done a compression test or leak-down test?
Bronson7
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Post by pablosrfivehundred on May 12, 2006 15:08:10 GMT -5
Hi,
New owner, first time poster.
I have the similar problem.
So essentially your saying stuck rings/broken piston = blow by?
But the bike runs OK. I rode 20 miles on the highway (70-75mph) last night to get it home from the guy I bough it from. The lower rear portion of the bike was covered in oil, (I’m surprised I got home alive.)
I assumed it to be coming out the make shift breather cover. It looks like the previous owner used a rubber tube and what looks like the cap from a rattle can of paint.
what is a leak down test? I know compression but not leak down.
Ok. If stuck rings: remove cylinder/ loosen rings/ and reinstall?
If Cracked Piston: replace
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Post by pablosrfivehundred on May 26, 2006 1:36:06 GMT -5
OK,
I'm reposting this because the oil I'm seeing is coming from the bottom of the head and the right side engine cover(not the breather as i earlier thought). anyone have a vague idea how much it would cost to have new gaskets put in from the cylinder gasket up. I'm also thinking if i have it apart... i might as well have the cylinder honed and new rings put in.
I'm thinking i could probably do all this myself. the only tool i don't have is a ring compressor.
anyone overhaul their engine?
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