Thin-wall spark plug wrench for 50 merc

[mitchwilldoit]

This weekend I decided to change my spark plugs on my 50 4 stroke easy enough to do... But no! I couldn't find a plug wrench that would fit in the spark plug hole. Found a old post and found I needed a thin wall 18 mm socket for a Yamaha ???? I borrowed several wrenches no luck. Figured I would have to go to a parts place to purchase this tool checked Amazon with the above topic and there it was 19 bucks and I would have it in 2 days here is the link
https://www.amazon.com/gp/product/B009D35UEQ/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=AN638R3PFM9Y5
hope this helps !!!!

 

[gm280]

Have you tried the typical spark plug wrench that comes with a lot of the yard maintenance equipment, like chain saws, weed eaters, leaf blowers and such? They are usual thin stamped wrenches for servicing the plugs on those engines. And since most spark plug are not torqued to very high ft/pd of torque, you shouldn't have any trouble removing them either. JMHO

 

[bruceb58]

By a cheap one and grind it down on a grinder until it fits the hole.

 

[poconojoe]

By a cheap one and grind it down on a grinder until it fits the hole.

+1 on that.

 

[Texasmark]

+1 on that.

+2 on that. The thin wall 12 point is a good place to start grinding if necessary.

 

[poconojoe]

+2 on that. The thin wall 12 point is a good place to start grinding if necessary.

If you can get a 6 point socket, you will get a better grip and less chance of slipping. I always prefer 6 point for any kind of hex nut type situation.

 

[bruceb58]

If a 12 point starts slipping removing a spark plug, you have bigger issues.

 

[Texasmark]

.........and the wall on the 12 is thinner than the 6, the only reason for using the 12 over the 6 and ditto on: "If a 12 point starts slipping removing a spark plug, you have bigger issues."