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Ruffy · 01-04-23, 12:14 PM

From memory, I think K6 was the last of the two-plug head, so yours is most probably a four plug head.

But isn't the easiest way to find out for sure to take a look at the top of your engine and count the plug leads.

Sorry for this sounding a bit facetious but if you can't find 'em to count 'em with the bike in front of you then you might be better off paying someone else to change them.

BTW, why do you want to change to iridium specifically? 'Normal' types should also work fine. Are you having running trouble?

01-04-23, 12:14 PM	#3
Ruffy Member Join Date: Aug 2007 Location: nr. Ashby-de-la-Zouch Posts: 321	Re: Spark plus From memory, I think K6 was the last of the two-plug head, so yours is most probably a four plug head. But isn't the easiest way to find out for sure to take a look at the top of your engine and count the plug leads. Sorry for this sounding a bit facetious but if you can't find 'em to count 'em with the bike in front of you then you might be better off paying someone else to change them. BTW, why do you want to change to iridium specifically? 'Normal' types should also work fine. Are you having running trouble? __________________ Spannering the wife's SV650S K5 pointy in Black, and son's SV650 X curvy in Blue. RIP SV650 X curvy, crashed and written off December 2019. I'm (procrastinating about) fixing up an old Yamaha FZ600 to get myself fully back on the road.