geoffschultz
04-06-2007, 09:50 PM
I am cruising in the Caribbean and just happened to be in a location with Internet access. I only expect to have Internet until Saturday noon, so if anyone can provide help in this period, I would be very appreciative.
I have a 15 HP Yamaha Enduro 2 stroke outboard which is about 5 years old. It's always run like a champ. Today when I went to start it, it wouldn't even begin to start. I'm not well versed in the terminology of outboards, so please bear with me. I am a good trouble shooter.
There's plenty of fuel available at the carburator.
I don't see any spark at the plugs.
The cut-off switch appears to be working fine. It's open when the "key" in installed and closed when pulled.
I believe that the power source for the plugs is called a stator and a rotator. There are 2 wires coming from the stator assembly, but I don't see any voltage coming from them. I've tried jumping them to ground and I see no spark. The sealed unit that they lead to is labeled "63 V", so I'm assuming that the input is 63V and that I should be able to see a spark from it. I also assume that it bumps the voltage to a much higher level for the plugs. I've checked the output of the sealed unit (which leads to the plugs and see no spark.
There's a magnetic switch located next to the fly wheel which closes briefly on every 1/2 rotation of the flywheel. This appears to control the timing of the spark and seems to be working fine.
I was leery of taking the flywheel off to expose the stator/rotator as I don't know how it's assembled and/or what parts might drop off and how it needs to be aligned. I'm assuming that this is where the problem is. Any suggestions as to how to proceed and what I need to be aware of would be greatly appreciated.
-- Geoff
I have a 15 HP Yamaha Enduro 2 stroke outboard which is about 5 years old. It's always run like a champ. Today when I went to start it, it wouldn't even begin to start. I'm not well versed in the terminology of outboards, so please bear with me. I am a good trouble shooter.
There's plenty of fuel available at the carburator.
I don't see any spark at the plugs.
The cut-off switch appears to be working fine. It's open when the "key" in installed and closed when pulled.
I believe that the power source for the plugs is called a stator and a rotator. There are 2 wires coming from the stator assembly, but I don't see any voltage coming from them. I've tried jumping them to ground and I see no spark. The sealed unit that they lead to is labeled "63 V", so I'm assuming that the input is 63V and that I should be able to see a spark from it. I also assume that it bumps the voltage to a much higher level for the plugs. I've checked the output of the sealed unit (which leads to the plugs and see no spark.
There's a magnetic switch located next to the fly wheel which closes briefly on every 1/2 rotation of the flywheel. This appears to control the timing of the spark and seems to be working fine.
I was leery of taking the flywheel off to expose the stator/rotator as I don't know how it's assembled and/or what parts might drop off and how it needs to be aligned. I'm assuming that this is where the problem is. Any suggestions as to how to proceed and what I need to be aware of would be greatly appreciated.
-- Geoff