Hello, a bit of advice nedied if you don't mind old Chums.

The owners destruction manual for my 2001 X1 says Spark plugs HD 10R12.

Things may have moved on a bit in the last 12 years. Does anyone have any recomendations for an alternative make or number ?
Cheers,
Mick.

You'll not go wrong using the standard plugs Mick anything more expensive is just a waste.

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2001 X1 2009 1125CR 2006 Uly X3 2010 Uly a fully Maz'd S1 and a 1991 RS1200 Westwind.

Cheers.
I'll bin the HD GR12 that I found in the rear cylinder, and the NGK Iridium DCR 7EIX I found in the front cylinder then ?

Thanks again, standard plugs it is
Mick.

There are some updated OEM plugs available (I forgot their code), which will not soot as fast as the previous ones.

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"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
Terry Pratchett

10R12X.......fitted to 08 onwards.....more expensive than 10R12A's and not as good IMO

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Mithered ta death.
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR

Cheers.

Does anyone know what the last letter of the code denotes?

I suppose the 10R12A is an upgrade from the stock 10R12, and the 10R12X an upgrade from 10R12A ?

Looks like I missread the plug I took out of the rear cylinder then, must have been 6R12.

Thanks again.

X has a rib on the insulator to help resist surface discharge when fouled.

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08 Specialized Langster

......although, IME it actually promotes surface discharge when fouled because it gives the centre electrode a shorter path to the plugs body

_________________
Mithered ta death.
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR

My mate recently asked me to do a service on his Harl*y XR (the new tarted up Sportster, not the genuine one ) so I told him to go his nearest Dealer and get plugs, filters etc - because they won't have me on the premises . He dropped the stuff off at my gaff and I set to.
When it came to the plugs, I was very surprised that he'd been sold the old 'soft' plugs they used to fit to Sporty etc. These run a fair bit hotter than the recommended ones (same as Buells) and can cause a lot of damage. I've been told that Dealers were instructed to bin these plugs some time ago

I told my mate to return them and send my best wishes to the Dealer Principl(e). Shame he can't spell his own job description on their Website

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If your dreams don't scare you, they are not big enough.

Probably (or proberly) ex B.T.

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I started out with nothing and still got most of it left.

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If your dreams don't scare you, they are not big enough.