Just wonder if you found the reason for misfiring as I?ve got same issue only differences mine not firing on first cylinder, Independent bmw garage couldn?t find the problem so I just took it to a dealer now see what they gonna tell
Yes they put different ecu and it run on all 4 cylinders, second hand ecu need to be programmed i believe to work with specific bike I?ve seen sets with dash keys and ignition barrel on ebay for ?1500 so not keen on that, sorry to comment on old post but I thought it won?t be a problem
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