Quote:
Originally Posted by (F5)
Erm. . So the cdi doesn't use the lighting/ battery charge coils at all so no need for regulator. That would only be the case for a dc powered cdi like an Ignitech. (Not sure about very latest models).
The earthing point for the coil and frame is there though so it could have been the issue.
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The regulator had failed and was shunting full alternator power to the frame. I suspect this bothered the earth reference of the CDI. What led me to the regulator was turning on the headlight (which used some of the alternator output) helped the bike rev a bit higher. Simply disconnecting the power lead from the regulator solved the problem until I had a replacement regulator.
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'15 YAMAHA WR250F, '75 YAMAHA TY80 Gone: '00 380 EXC, '03 EC300, '07 YZ250, '07 250 XC-W, '08 YZ450F, '12 CRF250R
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