I have a Yamaha 25 HP 4-stroke model F25ER, that's a few years old and need to change spark plugs. I know it takes an 18mm, deep socket wrench, but the clearance to the casting around the plug is really small and I haven't found a deep socket or spark plug wrench that is thin-walled enough to work. What have others used??
-
I'm thinking of buying a cheap, deep, 18mm socket and grinding the outer wall down, but I know tool-steel is hard and may not grind easy.
-
Help!
Thanks!
Dave
-
I'm thinking of buying a cheap, deep, 18mm socket and grinding the outer wall down, but I know tool-steel is hard and may not grind easy.
-
Help!
Thanks!
Dave