I finally got my bike running, a 99 R1, and noticed that the tac is jumping to 7,000 rpm before I start it (exup problem). I have an after market exhaust system on it so the exup cables are gone. I have read the threads about the device that cost $99.00 to stop it, but I rather use the fix with the jumpers. What is the procedure for that? Is it jumpers on the black/red and white/red correct?
tewillia
From http://www.samannasystems.com/faq.html
He sells the $99 "servosub"
Q. I have heard that you can disconnect and remove the EXUP servomotor assembly and simply connect either a jumper-wire or a 7.5K ohm resistor between the black/red and the white/red wires from the R1 wire harness, which previously connected to the servomotor assembly. By doing so, this will then eliminate the tach diagnostic. Is this correct?
A. Yes it is, to a degree. Fitment of the 7.5K ohm resistor or jumper-wire as described above will eliminate the tach diagnostic for all conditions except for when,
1. The ignition key is in the 'ON' position and the engine is not running for a period of time greater than 12 seconds.
2. With engine idling, 'coasting' with the clutch lever pulled in.
We believe Sam's Servo Sub is superior to the 7.5K ohm resistor or jumper-wire because,
* Sam's Servo Sub eliminates the tach diagnostic under all conditions and does a superior job of simulating the servomotor assembly as compared to the 7.5K ohm resistor or jumper-wire. See Chart for technical detail.
He sells the $99 "servosub"
Q. I have heard that you can disconnect and remove the EXUP servomotor assembly and simply connect either a jumper-wire or a 7.5K ohm resistor between the black/red and the white/red wires from the R1 wire harness, which previously connected to the servomotor assembly. By doing so, this will then eliminate the tach diagnostic. Is this correct?
A. Yes it is, to a degree. Fitment of the 7.5K ohm resistor or jumper-wire as described above will eliminate the tach diagnostic for all conditions except for when,
1. The ignition key is in the 'ON' position and the engine is not running for a period of time greater than 12 seconds.
2. With engine idling, 'coasting' with the clutch lever pulled in.
We believe Sam's Servo Sub is superior to the 7.5K ohm resistor or jumper-wire because,
* Sam's Servo Sub eliminates the tach diagnostic under all conditions and does a superior job of simulating the servomotor assembly as compared to the 7.5K ohm resistor or jumper-wire. See Chart for technical detail.
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