I have a 2002 200XL SWB Mercury that looses fire on #2 cylinder up to 5000RPM. Once the engine is above 5000RPM the firing is for the most part pretty solid. You can see a miss in the timing light every once in awhile on #2 cylinder. When under 5000RPM the engine looks and sounds like it is going to jump off the back of the boat. I have swapped CDM modules and the problem stays on #2 cylinder. I brought my boat to a "mechanic" to charge me $300.00 to change out the gas line between the tank and the primer bulb. He also stated that he changed the ignition logic module but he didn't leave it on the motor and claims he didn't charge me but I think that was in the price of the $300.00 gas line.
Any ideas? Could it be the trigger and if so how can I troubleshoot?
Thanks,
koonduke
Any ideas? Could it be the trigger and if so how can I troubleshoot?
Thanks,
koonduke