Have a cbr 900rr suddenly stopped at highway.
after i have lights but no starter button working
Just cranks with a screw driver between start rele terminal. No power to the coils. What can it be the rektifier is new tryed 2 pulse generators no volt on the wires to coils. Where to start check ? Maybe broken ecu?
​​​​​​​and thx for tip to where to start checking.

 

RR and pulse-generators have nothing to do with cranking bike.

Trace electricity flow from battery to starter. Measure following:

1. resistance at starter-solenoid grn/red terminal to chassis-ground, ohms = ???

2. battery power with everything OFF, volts = ???

3. red wire going into ignition-switch, volts = ???

4. key ON, red/blk wire leaving ignition-switch, volts =???

5. blk/red going into start-button, volts =???

6. PRESS start-button, yel/red wire leaving start-button, volts =???

7. yel/red wire at starter-solenoid, volts = ???


You'll have series of measurements:

battery 13v -> 13v -> 13v -> 13v -> 13v -> 13v -> 13v -> 13v -> 13v -> 0v <-- AHAH!!!! -> 0v -> 0v -> 0v starter-solenoid

Problem is between junction where you got 0v and previous point that did have power. Could be corroded or broken connector or wire along way.

 

thanks for sharing the update