Trials Australia Forums

Tried to get a replacement plug the other day but was unable to source the exact one I was after,a BR6ES.After talking to the mechanic I left with what I thought was a BR7ES thinking a tad cooler probably wasn't a bad thing.On closer inspection at home the plug is actually a B7ES.Does anyone know what is the difference between a 'B' and a 'BR' ? Can the 'B7' plug be used in a '91 TY 250 or should I order the 'right' one in?Any help appreciated.

The "r" stands for resistor, its basicly a marine plug, so it doesnt intefere with radios/tvs, just use a B6ES as its more reliable then the BR plugs, even better is a Champion N3. But you shouldnt notice any difference between the B6es and the B7ES.

Go here for a NGK reference chart
http://www.ngksparkplugs.com/tech_suppo ... aqcode.asp

Thanks for the replies I'll go with the plug I've got and see how it goes.Thanks again.