Mecury 120XR won run!

[Khaiboat]

I installed a rebuilt motor and had it ran for one hour at idle break in then I tried to accelerate but it failed at that moment. Now the machine won run, I unplug and check each spark plug look good, have spark, have gas but I won fire. Any one has any ideal how it won start? and anyone can give me a manual of this motor? thanks

 

[cheferic477]

Re: Mecury 120XR won run!

sounds like the key way is off. I would pull the flywheel and check that. I had that happening with the boat i just picked up. Changed the key way turned out the timeing a hint because mine was back firing and off i went to the lake.