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Ignition Problem 200 hp Ocean Pro

K

kwillis

New member
Need some ignition help.

Yr. 2000 Johnson Ocean Pro 200 HP Model J200PXSSC
Motor rough idling and giving only 4500 RPM WOT
Diagnosed problem as no spark on top starboard cylinder

Followed the trouble shooting flowchart from the service manual, which diagnosis only 3 electrical parts in this order: timer base, power pack and coil.

The first test requires finding greater than 0.2 volts when cranking the engine on the output pins from the timer base. The pin to the top starboard cylinder had no volts. All other cylinders had 0.5 max volts when cranking.

Easy fix: I replaced the timer base and the power pack. I’ve read bad power packs can affect the timer base. Put it back together, still no spark on the cylinder. I also swapped the coil and spark plug wire with another cylinder. Still no spark. All other cylinders are giving good spark.

Stator looks good - no hot spots or melting and putting out good voltage.

Any help is appreciated.
 
Thanks for replying. The pin shows no volts both on old timer base and new timer base when cranking the engine. The service manual instructions are to crank the engine for the test. There's really no way to test the pins on a running engine as the timer base has to be completely unplugged from the power pack when running the tests. I should also mention the flywheel magnets are in good shape.

4500 RPMs WOT is in the water running.
 
I'd disconnect regulator from stator and check for spark. If now has spark replace regulator. If no spark I'd try swapping stators...I know it looks good but if the timer, pack and coil are good and you definitely have no spark stator is all that's left.

I jus had this issue on my 225 -- bad stator melted brown goo onto timer base. Replaced pack too to be safe runs great now.
 
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