I took the boat to the lake thinking it would run ok. It did great for a few minutes. Got up on plane and hit 5200 rpm real fast. Then it started to shut down like it had no gas. Checked the primer bulb and it was hard. Pumped it a few times and no change in motor.
I have replaced the stator, timer base trigger, coils, spark plugs and water pump and the rectifier.
I have rebuilt the carbs. These carbs have no adjustment screws.
I did the compression test and readings were 140,150 and 130. Did a decarb with seafoam and new compression test with readings of 148,152 and 142.
Have not changed the power pack III.
Did the spark test with a gap of 1/2" . Top coil and bottom coil had the orange and white spark. The middle coil has a strong blue spark.
Can the power pack be breaking down on wot?
The motor was running great on the muffs and would rev up easy. Didn't rev more than 3500 rpm at short burst.
After the decarb it doesn't want to rev up to 2800 rpm and will not idle at 1000 rpm. motor dies.
Have a dva adapter coming in the mail. Will try to check the stator and timer base for voltage.
My main question is carbs or ignition?
Any help will be greatly appreciated.