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You are watching: Mercury outboard spark plug socket size


I have a 2013 25hp Yamaha outboard desire to eliminate spark plugs to fog cylinders tried 5/8 plug socket and also it did not work-related would like tto know if anybody knows size required either SAE or metric. Thanks Joe
I have actually a 2013 25hp Yamaha outboard desire to remove spark plugs come fog cylinders make the efforts 5/8 plug socket and also it go not job-related would like tto recognize if anybody knows size needed either SAE or metric. Many thanks Joe
try 13/16" or probably 3/4" must be conventional SAE 19mm equates to 3/4"have checked out plugs as big as 7/8" though but rare
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I would try 13/16". That"s a pretty usual for small engines anyway. I have actually some old old engines that use an 1 1/8" socket.
1. Obtain number turn off of one spark plug2. Go to auto components store or marina3. Most spark plug catalogs will offer wrench size4. If not acquire plug and also check dimension using open finish wrenchOR1. Carefully check the dimension by slipping a continual deep socket over the plug and also wiggle it by hand to check fit. Do not use this socket to pull the plug, then uncover the appropriate size spark plug socket
1. Carefully examine the size by slipping a continual deep socket over the plug and also wiggle the by hand to examine fit. Carry out not use this socket to pull the plug, then uncover the right size spark plug socket
I"m interested to know why you room advising no to usage a continual deep socket? That"s what I generally use and I"m wonder if there"s a reason I shouldn"t.

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A sparkplug socket has actually a rubber insert to organize the top of the plug strait so you dont break the plug
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