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i have a 175 evinrude and im having problems with it bogging down and trying to cut off when i hit the gas it will idle and i can put it in neutral and reve it up its fine its just when i put it in gear and get at about 1200 rpm thats when it starts acting weird wat could it be? fuel pump bad?

is the link from the throttle to the timer base connected

All kinds of **** from collapsed fuel lines to carb full of funk. Just because a motor revs in neutral don't mean squat. Start with the carbs and work back to the tank.

alright i was hopin it would be a quick fix

i got a guy thats going to clean the carbs tommorrow. when i get it back together tommorrow will i be able to hook it upto the water hose, and tell if its bogging down or will i have to put it back on the river i was just wondering because thats a twenty min trip for nothing if its the fuel pump? ill keep everyone posted

You will probably need to take it to the lake to test.

Pick up one of those round vacuum-pressure testers from a auto parts store and a T fitting that will fit your fuel line. Install it in right in front of your fuel pump if it reads more than 4" of vacuum you have a restriction problem. If that's good put it on the pressure side of the pump, it should be more than 3psi. Again this test is better on the water with a load, the first merc fuel line problem I had was fine out of the water but would collapse under a load.


I would look into a ignition problem, check for spark on all 6.

ok ill do that to i did buy new plugs today i didn put them in i was to excited to go run it lol

viper 77 did you have the same problem i had?

I had a bad high speed coil on my merc last summer, but at work last week I had a omc with a bad powerpack that cut ignition to 1 cyl. it didn't sound that bad uot of the water but would fall on it's face in the test tank.

o ok well i gota big tank i can sit the motor down in would that work ok instead of takin it to the river