Can anyone help.I'm trying to eliminate the vehicle down sensor because the motor now resides in a mini rail. What I'm trying to find out is how to reduce the voltage from 12v down to .4v to 1.4v which is what the manual says the ecu needs for a signal with the bike up. I hooked up a dcell battery(1.2v) and that works but I would like to do it with resistors or whatever it takes, never did learn about electronics! I thought about securing the weight but I would rather just bypass it. And yes, the thing is fast!!

The easiest fix in my opinion would be to use the vehicle down sensor and just ty-wrap it with the weight in the normal position, cause that would feed the ecu what it wants to see. Otherwise I have had too many o'beers to even contemplate the correct circuitry to deliver a steady voltage output of what you need to make the ecu happy.

We put them in small dirt cars. I can help you. We cut it all out. Lights, fuse box, etc. Give me a shout if you need help.

Bryan
(936)526-4175
bvpshenrys@juno.com

I don't see why you couldn't just measure the resistance of the vehicle down sensor when it is in the upright position and then go to Radio Shack and get the proper resistor to match and solder it in.
If you can't measure the resitance due to the circuty in the sensor you could always use a variable resistor from same store and adjust it down to where you are getting your 1.4 volts out of it and leave it alone. If you are worried, or if it just wont stay at that setting, you could glue it at the proper setting or hard wire in the equilivant resistance.

Hope that helps.
Don't know for sure because I haven't done it.
That is the road I would take though.
I would be worried about centrifical forces being applied on the actual sensor if mounted in the car causing it to shut down the engine when bouncing around the corners. Maybe there wouldn't be enough force to cause it to shut down and it would still work if you want to try it, but then again. You wont know till you try it.

Later,
Elbo