White spark plugs

MattW

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Just checked my tappets / rocker endfloat to confirm that it is indeed my right hand TB that's tapping gently. Everything fine - exactly as when I set them 750 miles ago.

However, when I took the plugs out I noticed that the insulators were pure white - just as when I fit them 500 miles ago. They're these new fangled things with the tiny platinum electrode set flush in a big chunky insulator (Bosch Platinum FR6 DP). The old plugs I took out (normal, non-platinum) had nice 'light tan' insulators.

Is this normal for this kind of plug?

Apart from an oil change / air filter change, I've not touched anything else (well, except from the gearbox output seal :rolleyes: ) and it runs fine (pops every now an then on the overrun, but this is normal I think?)
 
Hi Matt,
I use same Bosch FR6 in my 1100R :hide
yes centre electrode is white as well,With grey earth and inner core. Used for 10K,Always excellent starting from the platnium plug.
Good luck with the GS:)
 
Ah, thanks Fundura!

Not just me then :) - as you say, I noticed an immediate improvement in starting and idle with the FR6's - just surprised me when I saw how clean and white the electrode was.

cheers
M
 


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