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Is there no one out there that can simply summarize the way this ignition system works on a CBR900RR.
After market switches that dont work, zenner diodes, 9 volt batteries, fuel pumps, bank angle sensors, turn signal relays, ignition kill switches. COME ON.
It's not that complicated. It cant be. Can it?
 

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you might want to add what model you have? The pre 2000 models didn't have the pink wire at all iirc. US models dont have HISS where as most other countries and the EU do have HISS so you've different systems going on too.

The pink wire thing is simple in itself. There is battery voltage (12v) at the ignition switch and one connection on the switch has the Zennor diode which reduces the voltage to 9v and this runs down the pink wire to the ECU. Without 9v on the pink wire the ECU wont run the engine/injection. You can use a 9 volt battery in place of the diode by connecting cutting the wire, and connect the + terminal of the battery to the pink wire on the ECU side, and the - neg terminal of the battery to the frame. You can buy a similar voltage box to do the same thing on a permanent basis.

This will not bypass the HISS system so if you have HISS you must have a matching key (i.e. one with the microchip matched to the ECU) or you will not get the bike to run.
 

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the fuel pump won't prime with out the 9v on the pink and HISS working, if you have it.

Bank Angle Sensor cuts the motor if the bike it dropped, so when ite horizontal. There is no reset on it, pick the bike up and the motor will run. They are rare to fail and easily bypassed just to test that it is ok. How to do this is on most Honda bike forums, this one included. Just Google "bypass Honda bas" and there are links to YouTube, forums et infinitum.

Most issues with switches (indicators, headlight, kill switch) are normally down to dirt or corrosion as they are exposed to the elements and can be fixed with electrical contact cleaner spray or can be stripped and cleaned.

Electrical systems and components can be tested with a test meter and the shop manual (loads of downloads are available online) which show you most components and how to test them and what values to expect, from the Reg Rectifier, stator, MAP sensor, injectors, cam and crank sensors. All you need if a decent multimeter, workshop manual, and an understanding of basic electrical systems.
 

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Is there no one out there that can simply summarize the way this ignition system works on a CBR900RR.
After market switches that dont work, zenner diodes, 9 volt batteries, fuel pumps, bank angle sensors, turn signal relays, ignition kill switches. COME ON.
It's not that complicated. It cant be. Can it?
Can you be more specific? 900’s ran from 92-03, pretty much each with a bit different set up through the progressions however, 92-99 were simple in their design.
 
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