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Paul Paul is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 41
Default mercury outboard won't go full speed - then goes fast, then slow...

Try the easiest things, Change spark plugs,fuel filter, fuel line.
does the squeeze bulb collapse while running? Do any of the fuel
lines have leaks that will let air in to the system? After that it
could be a coil pack, plug wires perhaps a dirty carb.