Spark Plugs

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Spark Plugs

Post by JSG on Sat Feb 08, 2014 11:29 am

Anyone know the difference between a NGK B9ES and a NGK BR9ES plug?

Does the R plug run hotter? They look identical.
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Re: Spark Plugs

Post by Bill (the boss) on Sun Feb 09, 2014 1:29 am

The R plug has a built in resistor, no hotter, just less interference to passing radios,t.v.'s etc. But, you should have resistor caps as standard.

Bollocks I cant stop this!
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Re: Spark Plugs

Post by JSG on Sun Feb 09, 2014 1:52 am

Ok cool. So I can use the R plug then?

Not sure about the cap as it looks quite old but works ok Wink
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Re: Spark Plugs

Post by Bill (the boss) on Mon Feb 10, 2014 1:13 am

Yes you can use the R plug, it wont make any difference.

Bollocks I cant stop this!
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Re: Spark Plugs

Post by Alan H on Sat Feb 15, 2014 4:37 pm

Unless you have a resistor cap as well, then your spark will be slightly weaker (twice as much resistance).
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Re: Spark Plugs

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