93’mariner40
New member
I have a 40hp magnum 4cyl 2 stroke, the compression test results were as follows
#1-94
#2-99
#3-97
#4-105
These numbers seem low, am I correct in thinking that. The motor seems to idle very well but stalls when put in forward. I also discovered that the carbs were both leaking, and the top carb vacuum line was broken off and not attached.
#1-94
#2-99
#3-97
#4-105
These numbers seem low, am I correct in thinking that. The motor seems to idle very well but stalls when put in forward. I also discovered that the carbs were both leaking, and the top carb vacuum line was broken off and not attached.