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07-15-2021, 12:01 PM #31
You don't have water in the cylinders. Some look like they just aint firing
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07-15-2021, 12:28 PM #32
And it sounds horrible in the video. Make sure your trigger leads on the switchbox are all correct like bob said. If they are in the wrong place they will fire but out of time so they won't run...
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07-16-2021, 04:39 PM #33Junior Member
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Piston wash photos
Still no luck troubleshooting the ignition system so I decided to use a scope and take some pictures of the piston wash.
Below are 2 photos of each cylinder in this order 1,1,3,3,5,5,2,2,4,4,6,6
The 2 that sparked my interest are 2 and 6 I have short vides of them at the following links
https://drive.google.com/file/d/175j...ew?usp=sharing
https://drive.google.com/file/d/1tmV...ew?usp=sharing
Anything to be learned from these? Please fire away.
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07-19-2021, 01:29 PM #34Junior Member
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Its fixed. Humbled to say the final fix came about with 6 New Spark plugs. I was seeing spark on all cylinders with induction and gap testers but it didn't seem as though all cylinders were firing. I removed all the sparkplugs attached their wires zip tied each sides spark plugs together and grounded each bundle. When I cranked it over only 2 of the plugs had good spark. Thought I had replaced them last fall when I strted my troubleshooting, now not so sure.
Thanks everyone who offered their ideas.
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07-19-2021, 02:51 PM #35
sometimes we overlook the easy stuff. Glad you got it fixed!!
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07-19-2021, 08:03 PM #36Junior Member
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Took the boat out today and engine ran great. Was a running a little hot in no wake zone and a little cool when opened up. I plan on replacing the impeller as there was some dry cranking during my repairs. Got back to the ramp idled in tach started acting funny and it stalled when I took it out of gear. Was hard to restart then it cut out and smoke starts pouring out of the engine. Rectifier is melted. Few questions. Is this likely to have damaged any other components? What should I check before replacing rectifier? I have a new cdi 40 amp stator 174-9610K that has 2 yellow and 2 yellow/black wires and jumpers that pair them together for the 2 wire rectifier. Can I replace the single rectifier with the dual 20 amp rectifier 194-8736?
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