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spark plugs

Posted: Sun Apr 17, 2016 2:27 am
by neilstar
hello, new to this site, so I thank you in advance for any input you have and apologise for any stupid dumb questions I may ask,

I have just purchased a 1984 RZ500 53G Australia , barn find, all there

trying to get it going, running , manual says BR9HS NGK spark plugs,

that's not what it has in it, I have done a little research on spark plugs and seems as though a BR9Hs has only a 12.7mm thread reach,
and the plugs that are in it are a BR9ES which are a 19mm thread reach ,

having those longer/wrong plugs in it cant be good?

so my question is can you please tell me the exact plugs it should have??


Cheers Neil

Re: spark plugs

Posted: Sun Apr 17, 2016 2:40 am
by tacky1
BR9HS is the standard plug. One of my bikes came with ES plugs also. Lucky enough they didn't do any damage