Guys
What is the best spark plug for my 74 Six Days?
It came with a Bosch W3AS.
Rick
NGK B8HS and widely available most everywhere.
Dale Fisher
Penton Owners Group - President/Memberships
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Mudlark Registry
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'70 Six-Day 125 - V2017
'72 Mudlark - W257
'73 Jackpiner - 175 21159727
'74 Berkshire 100 - 40171056
'98 HP-14 Hi-Point
And some silly other bikes...
Hi Rick,
I have been using Champion L78 plugs since the early 70s on my 100s & 125s and never had a problem. They are reasonably priced. Cheers, Lee :)
Whatever plug you choose check with your local auto parts store for price & availability as they are often less expensive.
Pete Petrick
175 Jackpiner
Slow but Good