@Road Runner wrote:
This past weekend at The Track Mychron was acting screwy.
Would rev the motor and the RPM gauge wouldnt keep up with it. Ex, At full throttle it would sho like 500 rpm then as I let off the gas and it slowed it would jump up to say 4 or 5 thousand RPMS.
If you still have the little plastic clip on the RPM cable, throw it away. That thing is junk. Zip tie the RPM cable directly to your spark plug wire. It can even help to wrap it around the wire a few times.
Also, make sure that the RPM cable is not tied to any cables other than the spark plug wire. If it’s attached to any of your other ignition wires, or other sensor wires for the MyChron, that could be screwing up your readings.
@Road Runner wrote:
And would give bogus lap times like 1:4’s and 1:5s, when i know i was sub 59s.
Two potential problems there that I can think of off the top of my head. First, the obscuring time may be messed up. After the MyChron registers a lap, it ignores all further laps for a certain amount of time. This amount of time might be set too long – check your manual to see how to change it, and set it to something like 50 seconds. The other potential problem is your sensor could be mounted such that your leg or something is getting in the way, or it’s just not lined up well enough to be able to “see” the beacon next to the track.
Hopefully some of this works… if you absolutely can’t get it to work, AIM’s customer service is pretty good and will take care of you.