CB92 Spark Plugs

Below is an Email received from the NGK website, it refers to replacement plugs for the CB92

Dear Benly Page,

Thank you very much for your interest for our plugs.

Your inquiring plugs we have not produced any more.

Substitutional : Spark Plugs for your Classic Motorcycles are as follows; 

C10H :changes to: R016-10 (Racing type plug)  

D6H :changes to: D6HA

Please do not hesitate to ask us further question. Best regards.

NGK,webmaster

So NGK suggest an R016-10 Racing plug if you're riding hard and for the more sedate amongst us a D6HA

The original spec for road bikes from the parts books is as follows  :  Up to 1962 engine number 2101669  C10H (10mm plug) and after that  D6H (12mm plug), be careful if ordering from your local dealer, plugs should be short reach, check the Number. Try this link http://www.ngksparkplugs.com/apps/