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Main Area => General GS500 Discussion => Topic started by: notoriouskeef on April 06, 2004, 01:00:43 AM

Title: Trouble shooting, spark plug is black.
Post by: notoriouskeef on April 06, 2004, 01:00:43 AM
Hey,

I'm a noob when it comes to motorcycles.  I'm learning though.  Ok I purchases this bike a few weeks ago knowing nothing about it, got a good deal on it.  It need some work, anyways sitting on the bike the right spark plug is perfect and the left one just looks like you dipped the tip of it in oil, very sticky.  Now I looked in my book and said it could be a bad ring.  I also ripped the exhaust off today and the same side exhaust was sticky on the inside, and oily as the opposite wasn't.

Does this mean I have to take apart the engine and replace some rings?  If so are there any tips to it?  The bike runs good, shes  alittle slugish from about 2-4krpm once it hits 5500 hits hard.  Don't know if this could be the cause of it or not.  I'm planning on cleaning the carb tomorrow when I rip everything out.  I'm going to give her a paint job.  I painted the exhaust today I might post a pic later.

Thanks for the help,
Matt
Title: Trouble shooting, spark plug is black.
Post by: Kerry on April 06, 2004, 02:04:52 AM
1) What year is the bike?
2) How many miles on it?
3) What ELSE did the manual say it might be?

If there's a possibility that it's something else, definitely try the easier, less-invasive solutions first.  Rings?  Shudder!  (They're probably not as bad as I think, but since I've never done them....)
Title: eh
Post by: notoriouskeef on April 06, 2004, 02:16:48 AM
92 gs500, 24k.

The manual I picked up had about 8 different types of spark plugs w/ different types of discolorations.  My spark plug matched perfectly with the picuture it had of a sparkplug w/ oil leaking passed the ring.  

?
Matt
Title: Trouble shooting, spark plug is black.
Post by: tod on April 06, 2004, 02:33:28 AM
I'd put money on it being a ring...
Title: Rings...
Post by: The Buddha on April 06, 2004, 06:06:09 AM
Valve seal is more likely to be culprit if its oil in the plug... smoke in exhaust is more like rings... Valve seals... oh yea they are bad on all GS'es... suzuki ones atleast the ones they put on the GS are crap.
Cool.
Srinath.