2000 Mercruiser 5.7L 250 HP backfires The motor starts and runs. However if I slow down then throttle up again it will backfire through the carb it sounds like. It will bog down and then pick up speed again. I checked the coil .8ohms primary. 11.48K secondary. Any other suggestions what would cause the motor to backfire through the carb? I havent replaced the fuel filter yet this season. I will do that as soon as it arrives.
It is a Thunderbolt V. It is not EFI
Thanks!
It is a Thunderbolt V. It is not EFI
Thanks!
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