Bucks- lack of power- rough idle
Could be, a bad spark plug(s), a spark plug wire(s), a bad distributor cap, a bad rotor, a vacuum leak, bad fuel injector(s).
It will be a bad cap, bad plug wire or bad spark plug See more at sterndrives.com
It could be many things '' It could be a bad spark plug, It could be a bad plug wire ,It could also be a bad ignition coil module .
P304 means misfire on number four cylinder. Can be bad spark plug ,bad plug wire,or bad fuel injector. could also be loose plug wire or injector wire. How many miles since tune-up ?
I assume you checked for spark by removing the spark plug wire and tested for spark against ground. Although you may have spark through the plug wire, the spark plug could be bad and the spark is not being conducted to ignite the gasoline - change the spark plug. Another reason would be a sheared keyway on the flywheel that would cause it to be out of time. Another possibility is a shorted kill switch wire. Hope this info helps.
bad spark plug wire.
Spark plug wire not connected to spark plug? Spark plug wire connected to Wrong spark plug? Vacuum line disconnected? Bad spark plug or wire?
Bad spark plug, bad spark plug wire
Could be a bad spark plug, a bad spark plug wire or a bad fuel injector.
Bad spark plug Bad spark plug wire Do compresssion test Bad valve Bad piston
Yes. If the ignition is malfunctioning, the spark plug will not ignite. A bad ignition module, a bad spark plug or a bad plug wire are the most common causes of that (besides a bad battery, of course).
it could be a bad spark plug wire or the plug could be gapped to much
Bad spark plug? Bad plug wire? Do a compression test
poor spark plug gap bad wires or weak coil or bad spark plugs
Could have a bad spark plug, a bad spark plug wire, a bad distributor cap/rotor, a bad fuel injector, a vacuum leak,
take the spark plug out of the head. then put the spark plug wire back on the spark plug. ground the plug on the engine you can do this by putting the plug any where there is metal and lay it on it. then turn engine over and see if you have spark. if not then do the same thing with just the wire by putting a Philips screw driver in place of the plug, ground it turn over the engine see if there is a spark if their is the plug is bad. if not then the coil or flywheel is bad more than likely it is the coil
coil packs, bad spark plug, bad spark plug wire... start here... cheapest!