I have twin 1999 135HP 2-stroke mercury blue water outboards on my sea ray laguna.
Here is the dilemma...
I bought the boat not running and it sat for 2 years.
Checked compression and both motors were a solid 120-125 across the board.
I changed the batteries, drained the fuel, and cleaned the carbs. The starboard motor fired right up and ran great
The port motor(counter rotation) was giving me troubles but eventually I got it running. However, It would only run on the left 3 cylinders.
After some diagnostic and research on here, I narrowed it down to the stator.
I changed the stator and it was running great on all 6 again. Ran it for about an hour and it stalled out and wouldn't start. Now there is no spark to all 6 this time.
Compression checked again: Still 125-130 across
Starter is cranking over 300 RPM
Getting plenty of gas
Check spark with a tester on all 6 and nothing
Disconnected Black and yellow wires from both switch boxes with no change
Disconnected the 2 yellow stator wires with no change
someone also told me to disconnect the red wires and that still made no difference.
I thought maybe the new stator was faulty so I put the old one back in to see if it would spark on the 3 it was originally running on but still nothing.
I don't have access to a DVA, but I do have a volt meter, a test light, and a brain.
The only thing I can think of is that coincidentally the trigger went bad soon after I changed the stator.
If it was a switch box wouldn't they both have to go bad to loose spark on all 6?
sorry for the never ending story, but I truly appreciate any input. I am really excited to get this in the water.
Here is the dilemma...
I bought the boat not running and it sat for 2 years.
Checked compression and both motors were a solid 120-125 across the board.
I changed the batteries, drained the fuel, and cleaned the carbs. The starboard motor fired right up and ran great
The port motor(counter rotation) was giving me troubles but eventually I got it running. However, It would only run on the left 3 cylinders.
After some diagnostic and research on here, I narrowed it down to the stator.
I changed the stator and it was running great on all 6 again. Ran it for about an hour and it stalled out and wouldn't start. Now there is no spark to all 6 this time.
Compression checked again: Still 125-130 across
Starter is cranking over 300 RPM
Getting plenty of gas
Check spark with a tester on all 6 and nothing
Disconnected Black and yellow wires from both switch boxes with no change
Disconnected the 2 yellow stator wires with no change
someone also told me to disconnect the red wires and that still made no difference.
I thought maybe the new stator was faulty so I put the old one back in to see if it would spark on the 3 it was originally running on but still nothing.
I don't have access to a DVA, but I do have a volt meter, a test light, and a brain.
The only thing I can think of is that coincidentally the trigger went bad soon after I changed the stator.
If it was a switch box wouldn't they both have to go bad to loose spark on all 6?
sorry for the never ending story, but I truly appreciate any input. I am really excited to get this in the water.
