I posted this problem a while ago but its still not resolved. The engine is a 91 merc v135. Its been randomly bogging down while accelerating. Sometimes it runs really well. So far Ive rebuilt the fuel pump, carbs, reaplaced filters and fuel lines. I checked the tank and pickup for obstructions and its clean. Plugs are new and look pretty clean. I'm thinking maybe this could be an ignition problem but I'm not to good at electrical stuff. What would be the most likely thing to check first?
