johnson 72 20hp plugs, champion or ngk?

[dkonrai]

need to order plugs. ngk or champion?

i see the champion plug is j4c, hotter plug is j6c.

the ngk is br6s #3522 but what is the next hotter temp plug?

 

[JB]

Re: johnson 72 20hp plugs, champion or ngk?

Use only Champion plugs in JohnnyRudes. Despite claims of "equivalency" there are subtle differences that the engineers take into consideration when designing the outboards.

 

[dkonrai]

Re: johnson 72 20hp plugs, champion or ngk?

Use only Champion plugs in JohnnyRudes. Despite claims of "equivalency" there are subtle differences that the engineers take into consideration when designing the outboards.

thank you!
dino