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The boat has to be taken out of the water and hauled to a proper mechanic for this type of question. It's either 2 or 6 plugs in a 4 cylinder. It's worth spending the money to solve this and good to know for when an emergency comes up.
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∙ 16y ago
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How many spark plugs does a 4 stroke boat motor have?
One spark plug per cylinder. You didn't mention how many cylinders.
How do you check the stator on a boat motor?
In order to check the stator on boat, you need to have a multimeter. First you have to make sure that the spark plugs are not misfiring. If they are replace them and then restart the battery.
I have a 1982 Mercury 25hp boat motor and it wont fire. It has good compression but wont fire-- What could be the problem?
Perhaps the spark plug system is not sending electricity to the spark plugs.
Spark plug gap for 125hp evinrude boat motor?
.030
What would make a evinrude 75 horse power boat motor loose horse power?
Bad spark plugs or wires, worn piston rings, out of time, or carburetor needs adjusting.
What mph do you get with an 223ci 4cylinder inboard motor?
Not enough info. There are too many other variables. Speed of a boat is dependent on boat length, whether it is a planning hull, what size and pitch propeller does it have, and weight of the boat. So it is impossible to answer this based only on the size of the engine.
What is the spark plug gap for 2000 mercury 225 Optimax boat motor?
.40
What spark plug does a 40 hp tracker boat motor use?
champion f12
What is the spark plug gap for a 120HP Mercury sport jet boat motor?
0.25mm
Where could water be coming from between motor and flywheel on 350 Chevy in ski boat?
Freeze plugs
What is the spark plug gap for a 1994 evinrude 25 hp boat motor?
The correct spark plug gap for the 1994 model, 25 hp Evinrude outboard is .030 in.
What causes a Yamaha 40hp boat motor to run rough at high throttle and fine at low idle?
Most likely need to clean carbs and check fuel bulb sounds like it is starving for fuel at higher rpm's also check spark plugs and clean them
