spark plugs

Information relating to the Matchless G9 or AJS Model 20 500cc twin
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Manky55
Posts: 11
Joined: Mon Sep 13, 2021 5:25 pm
Location: Hertfordshire UK

spark plugs

Post by Manky55 »

Hi all what spark plugs are people using on Model 20s mines 1954
cheers mark
Groily
Member
Posts: 2151
Joined: Thu Jul 04, 2002 1:00 am
Location: NORMANDIE FRANCE

Re: spark plugs

Post by Groily »

I have always used NGK B7ES without problems, or Champion N5 or 4 sometimes. No long nose electrodes, no R in the lettering. NGKs are easier for me to find in local bike shop. Beware fakes of all /any make!
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