AQ225 Owners Have a Question

[rleip21]

I have a volvo AQ225. I have a question about spark plugs that you use. In the boat I bought it had ac43mt plugs in it which a shop manual says to use. All websites say the boat gets a champion RV15YC4. The problem is the electrode sticks out about 1/8 inch longer. Do you use these plugs. Don't want a valve or piston to hit it.
Thanks

 

[Don S]

Re: AQ225 Owners Have a Question

Which AQ225 do you have? A through F ??

 

[rleip21]

Re: AQ225 Owners Have a Question

I have an E version.

 

[Don S]

Re: AQ225 Owners Have a Question

Either the GM plug AC MR43T or an NGK BR6FS

Don't even think about champions.