There is a hour meter built into the MPEM,(Multi Purpose Electronic Module). Only the seadoo dealer can access the time on the meter. I have added my own meter to keep track of the hours on the jet boat so I can keep the maintenance up to date. I installed it in under the storage bin in front of the steering wheel and attached it to a Purple wire+ positive and a Black- for ground. This way it is only running when the seadoo is running.
Karl