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Spark Plug Question Gt 550

Posted: Thu Sep 05, 2019 2:43 pm
by Dave Robbo
Ive bought NGK B7s instead of 8s for my 1977 Suzuki 550 gt will they be ok or not worth chancing it ?

Re: Spark Plug Question Gt 550

Posted: Fri Sep 06, 2019 12:58 am
by Alan H
They'll be ok if you never go over 4000rpm and only do very short distances. Suzuki recommended B8s for a reason. Don't get resistor plugs either. Hot plugs = holed pistons.

Re: Spark Plug Question Gt 550

Posted: Fri Sep 06, 2019 5:05 am
by Dave Robbo
Thanks, I’ve ordered the B8s no peace of mind otherwise.