Have an assistant turn the propeller while operating control box.----Put control box in forward and go to full throttle.-----Does timer base rotate?--Do both carburetors go to full throttle ?----Does control lever go near horizontal ?-----What trouble shooting ( if any ) has been done on the...
??----NORSEMAN is just the Evinrude name given to the 40 HP models in the early 70's.----Like all Evinrude models, used a motor name.---Starflite , Triumph, Fisherman , Skitwin , Big twin , ETC , Etc.
Post the actual compression values on this motor here.----How / where are the low speed mixture screws set?----Have you replaced the water pump impeller?----Tested for overheat and S.L.O.W. being activated?----Note----I own numerous of these 3 cylinder motors.
Correct.----In order to shift the " fast idle " lever must be down.----How did the motor run for you last season?----What trouble shooting has been done?
Model # is ?----It is a 75 or 90 HP I believe.-----The wires are disconnected FIRST.-----The lower unit is not heavy at all.----The lower unit is easy to remove.----Did many of them back in the day.
If you were skiing behind the wonderful 40 , you would see water pouring out of the exhaust relief.-----Then when you dropped off the skier and at idle lots of water vapor / " steam " would pour out of exhaust relief.----When engine settled after idling a bit , water would spit out of exhaust...
Serial # or picture of this cover will help YOU to get an answer.----Sounds like a leaking poppit valve diaphragm to me.----But just a wild guess at this time.
Need to look at some videos on maintaining this simple magneto.----You overlooked something.----Like removing magplate and screwing new wires into the coils BEFORE putting coils in position.---Factory offered a special ring to place coils in position.
Threads on those tubes are all the same.-----The ---" tiller cable " and pulleys are no longer legal on motors of 50 HP I believe.-----Go with a modern cable system..---It will fit.
There is a throttle cable and a shift cable.----The trunnion is the method for adjustment.----Curious to know the reason for your question.-----Issues with your motor ?
