Hello guys,
I recently acquired a jetski for free that I have been working on. I got to the point where I am ready to take it on the water, and found out that the CDI was bad, and is now no longer working. Being as a replacement is upwards of $350, I am wanting to attempt repair of the current one.
I have prior knowledge of electronics and soldering, and have done repairs of other electronic components before, but never worked on a CDI. In looking how they operate, it looks like it's mainly a capacitor, a transformer, and a small charging circuit. There also appears to be a power supply inside of it too that increases the output voltage. I have not tore into this particular CDI yet to see how it is setup, but I was wondering if it is in fact possible to service these, in the case, say, the capacitor goes bad?
It's a very old jetski, and it was working when I first got it, but after testing numerous times with a bad starter, I think we finally burned something up in the CDI. My plan was to remove the rubber covering the back of the unit, and using a multimeter test the resistance between the leads on the various components, as well as visually inspect components and traces on the board for damage, and, if it's possible, replace any components that are not working.
The real question I have, is if it's possible to service individual components (The likelihood of all components going bad at once is slim), and if it's safe to do so (There's a capacitor in there at least, that holds upwards of 500-600 volts), and if it's possible to safely discharge the capacitor.
Any insight would be most helpful.
I recently acquired a jetski for free that I have been working on. I got to the point where I am ready to take it on the water, and found out that the CDI was bad, and is now no longer working. Being as a replacement is upwards of $350, I am wanting to attempt repair of the current one.
I have prior knowledge of electronics and soldering, and have done repairs of other electronic components before, but never worked on a CDI. In looking how they operate, it looks like it's mainly a capacitor, a transformer, and a small charging circuit. There also appears to be a power supply inside of it too that increases the output voltage. I have not tore into this particular CDI yet to see how it is setup, but I was wondering if it is in fact possible to service these, in the case, say, the capacitor goes bad?
It's a very old jetski, and it was working when I first got it, but after testing numerous times with a bad starter, I think we finally burned something up in the CDI. My plan was to remove the rubber covering the back of the unit, and using a multimeter test the resistance between the leads on the various components, as well as visually inspect components and traces on the board for damage, and, if it's possible, replace any components that are not working.
The real question I have, is if it's possible to service individual components (The likelihood of all components going bad at once is slim), and if it's safe to do so (There's a capacitor in there at least, that holds upwards of 500-600 volts), and if it's possible to safely discharge the capacitor.
Any insight would be most helpful.