Honda 2hp outboard, plug spanner size?

[BlueChip]

I need to get the plug out and need a smaller box spanner.
What size is it?
Thanks

 

[Stork_III]

16mm? http://www.sparkplug-crossreference.com/convert/NGK_PN/CR4HSB

http://www.sparkplugs.co.uk/pages/database/plug-detail-ccp.asp?partno=CR4HSB

 

[Talulah]

I think one comes in the small toolkit that comes with the outboard.

 

[VicS]

I need to get the plug out and need a smaller box spanner.
What size is it?
Thanks

Depends on the age..... different plugs fitted 1999 onwards

Early 13/16" ~ 20.8 mm

later 5/8" ~ 16mm

 

[BlueChip]

Depends on the age..... different plugs fitted 1999 onwards

Early 13/16" ~ 20.8 mm

later 5/8" ~ 16mm

Not sure what age engine is, but plug is much smaller than regular ones, so 16mm sounds about right

 

[Ruffles]

I think one comes in the small toolkit that comes with the outboard.

And you do need the long reach because of the air cooling cowling.

I was going to say mine has been running flawlessly so far this year. Stopped myself just in time....