indexing spark plugs

[Capt Harv]

I want to replace the spark plugs in my 2005 200 HP Yamaha engines. I have heard something about indexing the spark plugs. Does that apply to these engines? Also does anybody know how to gap the new type plugs. They have two prongs coming in to the center electrode. Thanks.

 

[craze1cars]

Re: indexing spark plugs

Post this in the Yamaha Outboard Repair thread and you'll more likely get some responses.