RE: Plug replacement (was Autolite)

["Clive Liddell" <cliddell@xxxxxxxxxx>]

Dan and others,

I measure the gaps in my (non adjustable Bosch) plugs and when they wear or
erode to 1mm gap I replace them.  Usually they go from the initial 0.8mm to
1mm in around 30 to 40000km.  Never had starting problems or misfiring.   I
remove and check/clean them every 5000km. ie. At service time (10kkm) and
once in between.  I do torque religiously(sp?) but don't replace washers :|

Regards
Clive Liddell
Pietermaritzburg, South Africa
'96 R850R ~79k.km
'01 R1100RT ~60k.km

> How often do people change their plugs? I like to do my
> valves/TBs every 3k
> or miles (I commute a lot) but I'm not overly crazy about
> changing my plugs
> that often. I have thus far and, as Tom said, have found that
> fresh plugs do
> make a big difference.
>
> I've love to know what the rest of you are doing as intervals
> (best to also
> specify air/oil/hex head too as point of reference).
>
>
> If intervals are greater than the 3k miles, then is it possible
> to buy just
> plug gaskets? I don't want to reuse a plug with it's already compressed
> gasket.
>
> Anyone have a source for the BMW NGKs that is less that around
> $34 for the 4
> of them?

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