15hp Mercury only will start if a spark plug is pulled

twerner

Cadet
Joined
Jul 22, 2010
Messages
11
Just checked have good spark at each plug talked to mecury service had me check everything I did already was told they don't no what to do told me to bring to mecury dealer I can see where this is going one thing I do no is never a Mercury product again very unhappy mecury owner thanks to everyone who gave me help much appreciated
 

twerner

Cadet
Joined
Jul 22, 2010
Messages
11
Got hooked up with a guy that has been working on merc s for 20 yrs he had it running in 20 min I had oil changed by a mecury dealer about a month ago and they over filled oil by a extra half quart when I had kicker trimmed all the way up the oil drained into cylinders and saturated the plugs also I had the spark plug gap too much which is my fault but the oil thing he had another guy with a 9,9 same thing happened and yes same dealership so back to fishing it is
 

60sboater

Petty Officer 1st Class
Joined
Jun 18, 2015
Messages
307
Good news...so nice when they run. Is this a rebadged Tohatsu? I think the new 30hp and lower are made by that company.
 
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