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Johnson Oceanrunner rpms surge

R

richard oprey

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"Please help!!I cant figure ou

"Please help!!I cant figure out whats wrong with my 1997 Johnson 175 oceanrunner.One cylinder is not firing--clean as a whister I checked,I checked the ignition pack--this seems to be ok.boat surges when throttle powered up--rpms go up and down.What can be causing this problem?what can cause my one spark plug to not fire?
thanx
rich"
 
"I would check the compression

"I would check the compression on the misfiring cylinder, and all the rest.
If o.k. I would check and clean the coil connections, spark plug wire, and hot wire.
Is the fuel filter(s) clean??
Is the fuel line leak free--and all connections tight? Hope this helps."
 
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