For me it was just the opposite. I had a Laverda 3C (1000cc triple) and had
just installed a programmable ignition. At the same time, I installed new NGK
plugs. Bike wouldn't start - no spark. I figured it was the new igition. I
tried replacing the ignition components one at a time (pickup, black box) with
no success. I was going nuts because the parts supplier was on the other side
of the country. Finally I replaced one spark plug with an old one - the bike
ran on one cylinder. Replaced a second - it ran on two cylinders. Replaced the
third - it now ran perfectly. Three new NGK plugs - three duff ones.The old
Champions worked fine. I have used Champions ever since and have avoided NGKs.
So it goes.
Rick www.classicmotorart.cafull-colour drawings of your vehicle
> Date: Mon, 26 Mar 2012 11:09:58 -0400
> From: robertlarson at att.net
> To: dcongleton at embarqmail.com; healeys at autox.team.net
> Subject: Re: [Healeys] spark plugs
>
> I'm not sure about it just being recent. Back in the 80's I had no end of
> troubles keeping plugs in a 79 Triumph Bonneville motorcycle. Had out of
box
> failures and constant missing failures. Went from the "Losers" to the NGK's
> that the chart recommended and never had a failure or problem. They lost a
> customer forever as I have never bought another one.
>
> Bob
> 55BN1 (and British motorcycles still)
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