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+--- Thread: sooty plugs (/showthread.php?tid=69885)
sooty plugs - keratos - 07-08-14
No relation to the puppet.,
I've got soot on the plug bottom. Each cylinder.
The ground and centre electrodes are a light white milky chocolate and I was wondering whether a k&n filter might lean the mixture too much. Strange that electrodes are mikly choc (lean mixture?) Yet sooty (not a lot tho) on plug...
? What do you think?
Also, if i did replace the air filter with a k&n , would I need to sync the carbs
Cheers
Re: sooty plugs - darrsi - 07-08-14
Maybe just old plugs, if they're all the same they probably just need changing, light brown doesn't sound too bad to me.
Can't see why a K&N would lean your bike out but nobody else's?
Didn't you say you'd already balanced your carbs?
I would've thought they would still be okay.
Re: sooty plugs - keratos - 07-08-14
(07-08-14, 07:29 PM)darrsi link Wrote:Maybe just old plugs, if they're all the same they probably just need changing, light brown doesn't sound too bad to me.
Can't see why a K&N would lean your bike out but nobody else's?
Didn't you say you'd already balanced your carbs?
I would've thought they would still be okay.
Sorry...should have mentioned (making assumptions again..)
- new plugs installed yesterday and gap set to 0.75mm as the spec is 0.7 to 0.8
- carbs were (?) balanced
- K&N filter ; was just wondering whether it would help run a bit leaner but then again if the electrodes are already a light (milky hint of brown) does this not suggest to lean a mixture already. Not sure how to read this?
Re: sooty plugs - darrsi - 07-08-14
You balanced the carbs, so they're okay.
New plugs, and gapped, so they're okay.
New air filter, that's okay.
There is no problem?
Re: sooty plugs - keratos - 08-08-14
...Except sooty plugs but I guess I'm hearing that there is no problem. Excellent. Thank you for your words of comfort
Re: sooty plugs - papercutout - 08-08-14
Better to be running a tiny bit rich, than too lean! Mine possibly runs a tiny bit lean with a K&N and a very free-flowing exhaust... I've just changed my plugs to keep an eye on it, but no problems after a 2500 mile trip through Europe.
Re: sooty plugs - keratos - 08-08-14
understood. cheers.