Mine is an '05 Speedmaster built in November of '04. I believe that makes it an early 865? Not sure. At around 26K, the right side would go down intermittently. The first time it sidelined me was at the '08 NY Rally on the way to Triumph of Buffalo. At the end, the left side died, and the right side was fine.
Two dealers offered a replacement at around $500 something. I recalled a phrase a service manager used when I tried to explore the front rotor issue. "Goodwill claim" was the term. Only after my asking for it, one of the dealers put it through as a goodwill claim, and Triumph paid for the igniter.
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FWIW, I do believe it was Triumph themselves who assigned the unit the name CDI. I call it an electronic distributor, and at $600 for a $100 part, a few other choice phrases the censor software would intercept, but that's a story for another day.
I intend to saw up & mount a little heat shield for the new igniter out of an old coffee can. Don't know if it will help, but hopefully wouldn't hurt. At the '08 GA RAlly, we witnessed a 270 igniter with a visibly open seam that allowed water to foul it. When it dried out, the bike started right the ---- up!
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A little off topic -- The Haynes manual claims one can test the secondary side of the coils with a volt ohm meter. For the life of me, I couldn't figure out how, and do believe that section of the manual is wrong. I made a post about it some time back, and there were no suggestions on how to test the secondary circuit, so it's still a mystery to me how to do it, if at all possible (with a VOM.) Not that you need me to tell you Bill, but just for informational purposes - after chasing the intermittent firing problem around the bike a few times by putting the carbs into the equation, and having the issue jump from one piston to the other during the diagnostic process, the most helpful diagnostic tool was swapping in a known good igniter off a neighbor's America.
