IMU (Inertial Measurement Unit) This unit has undergone extensive testing and is a result of many different designs from the IMU floating on blocks or suspended on a frame with soft insertion rubber to crudely loosely mounting the IMU to sponge rubber and held in place with electrical ties. To varying degrees all worked but until we tried this current device we couldn’t completely eliminate getting of the line without interruption. When a wheelie was pulled the occurrence would happen as the bikes front wheel came back to the tarmac. Most of the testing has been down the road from our workshop and around the block as testing on the race track is not so simple and dangerous should a failure occur, however testing on the race track to date has so far been successful . To this end testing will always be ongoing.
The unit is not presently endorsed by our New Zealand motor cycling body, (MNZ) the organisation was approached but failed to show interest, it would be hoped that in the future they (MNZ) will endorse the unit. As a result fitting and using this unit is at your own risk and primarily for track or race use. Please be sure to give us feedback.
Often fault codes would display but more often than not the dash would light up like a Xmas tree. The symptoms are often ATC or ABS or AWC alarms with engine and ignition cuts. Often there would be no alarms. The primary cause seems to be vibrations when the race bike is leaned over or under strong acceleration. Sensor box failure P1911 alarm is often generated.
However a further failure may be that the ECU and firmware is mounted directly behind the cylinders and as a result any overheating or higher engine temperature could create problems, being that electronic drivers have as there greatest enemy heat and these problems may show up as the mentioned alarms, P1911 etc and incorrectly diagnosed as IMU problems. Excess heat can alter impedance and modern day electronic communication can be effected. Whats the answer, not sure, perhaps remove the thermostat for better water flow, Remove any stone guards, keep the Air induction cowlings in place.