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- - Weirdo spark plug discolouration. (http://forums.sv650.org/showthread.php?t=200329)

Dave81

19-06-13 03:53 PM

Weirdo spark plug discolouration.

Changed the 4 plugs on the SV today for the 7,500(ish) service and pulled this one out the rear cylinder.
http://farm8.staticflickr.com/7388/9...ea3b993a_z.jpg
http://farm8.staticflickr.com/7426/9...174d89dc_z.jpg
I wound the washers down the threads a bit so you guys could see in there better.
http://farm8.staticflickr.com/7303/9...a10afcef_z.jpg
The washers were stuck a couple of threads off being properly seated with a caramel coloured varnish above the washers. Weird. Not been out on it yet, will report back later this evening.

Bibio

19-06-13 04:08 PM

Re: Weirdo spark plug

looks like its had a small leak when put in but sealed itself. so wouldn't worry about it as the rest of the plug look good.

Matt-EUC

19-06-13 04:44 PM

Re: Weirdo spark plug

Clean it up or buy a new one. Have another look after a couple hundred miles.

Dave81

19-06-13 08:12 PM

Re: Weirdo spark plug

Quote:

Originally Posted by Matt-EUC (Post 2878580)

Clean it up or buy a new one. Have another look after a couple hundred miles.

They're a "replace" on the 7.5k service, matey.

Sid Squid

20-06-13 12:03 AM

Re: Weirdo spark plug

Drop of oil in the plug recess? Smear of grease from when it was fitted?
Doesn't look like a combustion leak exactly.

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