1996 Mariner Magnum 40hp wont fire

[Robert4599]

Hey guys i have a 1996 Mariner Magnum 40 hp that wont fire. I have had trouble with this engine idling for a while and i took the carburetors apart to clean them and then the motor wouldn’t start again. I deleted the oil injection system and premixed but it didnt help. I have the service manual and i ensured the carbs were up to specification, i also tested all the electrical parts on the motor and i had to replace the coils and spark plug wires and spark plugs. I have also recently replaced the starter and the starter relay. The only thing that doesn’t pass the test is the rectifier, but that shouldn’t affect the motor starting right? Battery has 13 volts! And the cylinders are getting fuel, the engine has 120psi on all cylinders but it wont even hit with starting fluid. I can ground the spark plugs out and see a blue spark but when i use a spark gap tester it doesn’t show a spark crossing the 1/4 inch gap. What is going wrong???

Thank you in advance!
-Robert4599

 

[Faztbullet]

DVA test stator as it sounds like it output is low....

 

[jonny canuck]

Same motor but ‘93.


Did you have any luck? I’m having the same problem. Motor doesn’t even sound like it is trying to start. New battery, fresh gas, spark and 135 compression on all 4 cylinders. 2 & 3 are a little wet.

 

[zorman]

Measure the resistance from the trigger and from the stator to make sure both values are within the acceptable range. Service manual under ignition components has the reference values.