This is something that would be good to have on all quads.
http://motocrossactionmag.com/Main/News/MXA-TEAM-TESTED-WORKS-CONNECTION-TACHHOUR-METER-8588.aspx
Put it on just after a rebuild, that way you know exactly how much time would be on the motor, no more guessing or just saying a random number
Now the next thing it needs, how much time someone else beats the crap out of it
http://motocrossactionmag.com/Main/News/MXA-TEAM-TESTED-WORKS-CONNECTION-TACHHOUR-METER-8588.aspx
Put it on just after a rebuild, that way you know exactly how much time would be on the motor, no more guessing or just saying a random number
Now the next thing it needs, how much time someone else beats the crap out of it