Greetings,
I have a 20 foot open bow runabout that I recently repowered with a 2002 Mercruiser MAG 350 MPI with only 80 hours and a Bravo I drive. The drive has a 1.5 to 1 ratio and a 23 pitch prop. The engine seems to run great at all times but at around 4400-4600 RPM's and 55 MPH it feels like it is hitting a rev limiter. The engine seems to methodically miss at this RPM range. I have replaced the fuel filter and tried an external tank with the same results. I have also recently replaced all of the spark plugs, the distributor cap and rotor and the same thing is still happening. The WOT for my engine is 4800-5200 so I am thinking that this may just be the rev limiter kicking in because maybe my tach is reading a bit too low. Does this scenario sound like the rev limiter simply kicking in? I have no experience with these EFI engines so I am not sure if something is broken or if this is just normal behavior.
I have a 20 foot open bow runabout that I recently repowered with a 2002 Mercruiser MAG 350 MPI with only 80 hours and a Bravo I drive. The drive has a 1.5 to 1 ratio and a 23 pitch prop. The engine seems to run great at all times but at around 4400-4600 RPM's and 55 MPH it feels like it is hitting a rev limiter. The engine seems to methodically miss at this RPM range. I have replaced the fuel filter and tried an external tank with the same results. I have also recently replaced all of the spark plugs, the distributor cap and rotor and the same thing is still happening. The WOT for my engine is 4800-5200 so I am thinking that this may just be the rev limiter kicking in because maybe my tach is reading a bit too low. Does this scenario sound like the rev limiter simply kicking in? I have no experience with these EFI engines so I am not sure if something is broken or if this is just normal behavior.
