ECU
as removing it from circuit doesn't improve the situation. After replacing the ECU all seemed fine ran well initially but a bad battery let me down. I replaced the battery and again she started and ran fine for about 24 hours off and on then stopped completely. The fuel pump ran almost continuously and there was a total lack of sparks. To start with I thought it was the ECU again, but swapping it out for a known good one didn't help. I fiddled with everything I could think of, and checked out the wiring as best as I could with a multimeter (handicapped by a wiring diagram whos colours don't agree with the ones on the bike). All of a sudden she decided to run again, right as rain and continued to do so for a couple of days. Has anyone got any thoughts on this please?,Had a similar problem with my 1100i cali, (not the submerged ecu), turned out to be the relays, make sure that the connections in the relay block are tight, pull each relay in turn, and with a really small screwdriver slightly bend the female parts that the relay pins locate with, so the relay is a snug fit when you push it back in, sorted mine out after a week of similar headache. (Make sure the relays are not duff),,,
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