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'88 Johnson 70 hp loss of power and miss
Hello , I have a problem with a OMC, (does the Omc stand for ol misery
and confusion ?) the motor starts great with little or no priming of the fuel bulb but after a while aprox 10 min in cool weather or 5 in 90 deg weather the engine drops to about 1/2 throttle and has a dead miss any where above that, replaced all fuel lines and bulb from fuel pump back to the tanks, same problem. If you stop for about 30 min. with it turned off, it will throttle up to full rpm with no miss for the same time frame then start missing all over .I have also replaced the plugs and wires with no improvement.What next ? I'm ready to back off and punt, striper season is upon us and the boat won't keep running long enough to fish !! Thanks for reading and any input would be great, Mark (WV) |
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