Diode Substitute

Mike Brennan /
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So, I bought a donor Chappy from a mate which in hindsight sight was a bad move as there are lots of bits missing. Parts here in SA are like chicken teeth too…

So now I’m in. Done the barrel and head with new piston and need to give her a kick but there is no wiring. Just the magneto and coil.

Looking at the diagrams I have found the line runs from the magneto to ignition switch to diode and then coil.

I need the diode value as the part has been discontinued by Yamaha and I’m not a sparky. Or a mechanic for that matter but the Chappy is a great project.

Can someone help me with that diode value please?

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