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OK folks, a couple of worry wart questions from the dirvers seat: I moved my TCI last weekend. The job was the expected PITA but its done now. I took the bike for its first ride to work since the relocate today. I find that the original problem, a misfire under load at 3k rpm's and above was still there but less frequent than I was used to before. The problem always did seem to be temperature related. It was much more apparent on cool mornings than warm afternoons. Today, the engine was rock solid when I set off from home but as she warmed up there was a short period where she would mis fire and then she seemed to get through it and ran flawlessly again. It was as though there was a troublesome tempreature band she went into and then out of as she warmed up. I have yet to open this TCI but I am prepared to do so if necessary. I suspect that I'll find an iffy solder joint somewhere inside that is sensitive to thermal expansion. Meanwhile I am trying to characterize the fault and the effects that the TCI move has had on the situation. While riding, I was wondering / worrying about the reasoning for Yam's engineers to put the TCI where they did. Do we know anything about their original thinking? Does the TCI actually require some cooling from the air flow in its stock location? If so am I damaging it by running it up top? What sort of miles have folks here got running bikes with relocated TCI's ? Is there any indication that the TCI's are more prone to fail after a relocation? Thanks, Brian H.