SOHC.co.uk Forums > CB500/550

What oil and sparkplugs?

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Peter_plade:
Which oil and which sparkplugs should I use on my 76 cb550?

LesterPiglet:
NGK D7EA and 10/40w mineral oil.

Peter_plade:
Thanks 👍

deltarider:
As long as you don't start and ride your bike in temps below zero degrees Celsius a 15W-40 oil is a better choice.
Many on the continent who are used to maintain high speeds favour the D8ES-L plug (in effect half a grade cooler than the '7'). That same plug is prescribed for all the other Fours.

cb ghia:

--- Quote from: LesterPiglet on January 18, 2015, 05:56:37 PM ---NGK D7EA and 10/40w mineral oil.

--- End quote ---

I run the D7EAs and I use 15/40 Rotella T, but this could get into one of the ugly oil threads...  Do you guys get those over on this board?

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