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Spark Plug Thread Size ? #380151
06/21/11 7:55 pm
06/21/11 7:55 pm
Joined: Sep 2009
Posts: 198
East Sussex UK
db133 Offline OP
BritBike Forum member
db133  Offline OP
BritBike Forum member
Joined: Sep 2009
Posts: 198
East Sussex UK
I have been looking for the thread size of a NGK B7ES as a cylinder head I have picked up requires new threads.

Will someone be kind and inform or point me to the info ?

Regards

Last edited by db133; 06/21/11 9:58 pm.
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Re: Spark Plug Thread Size ? [Re: db133] #380176
06/21/11 10:15 pm
06/21/11 10:15 pm
Joined: Sep 2009
Posts: 198
East Sussex UK
db133 Offline OP
BritBike Forum member
db133  Offline OP
BritBike Forum member
Joined: Sep 2009
Posts: 198
East Sussex UK
NGK B7ES

B= 14mm
7= Heat range (2= hot 11=cold)
E= 19mm thread length
S = standard Hook Style Electrode

and the all important 'Thread Pitch' of 1.25mm.

Hope that helps......;-)

Re: Spark Plug Thread Size ? [Re: db133] #380188
06/21/11 11:35 pm
06/21/11 11:35 pm
Joined: Nov 2005
Posts: 7,259
Back on the mainland!
JubeePrince Online content

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JubeePrince  Online Content

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Back on the mainland!
db -

Pat youself on the back! laughing

Steve


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...

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