Grasshoppa wrote: Have you checked compression and this is healthy? Fuel lines/connectors in good condition with no leaks? Sounds like your dropping a cylinder, given your previous issue and Mariner/Merc engines being fairly consistent with ignition issues i'd check this out If so you need to test spark with engine under load, this can be accomplished at the boat ramp, ideally you'd use a test prop that loads motor without generating drive but if your careful you can back boat in with std prop so that water intake is just under the surface with engine lowered and some of prop out of water, the idea is to have enough prop in water to create some load so motor not free-rev but enough prop out of water that it ventilates and dosent load transom excessively You'll need a timing light on respective cylinder verifying you have spark while a capable/trusted colleague operates throttle with motor in gear, go thru all cylinders until hopefully one of them stops sparking |
CrayZfish wrote: I've given in an its off to an outboard mechanic she goes. He'll probably figure it out easily. Shame I could not figure it out but I have learnt a lot about the motor and myself trying. Thanks for the help I'll post back on here what he finds. |
Tagit wrote: The other thing that might need checking is your ignition advance to make sure it is working properly. |
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