We can get fire from the ecu to the coil ,but no fire from coil to plugs
The 99 cbrs have a zenner diode in the ignition switch that runs to the pink wire, which reduces the power from 12v to 9v(the amount needed for the fuel pump to run,) it's a safety thing Honda did so people couldn't just hot wire it.if that is broken, it won't start.
SOURCE: Honda CBR 900rr 95 Will not start
Check fuel pump is working(remove seat and tank)Although your bike has carbs,they are fed by a fuel pump(under seat and tank)
if there is no fuel getting pumped when you are cranking over,replace fuel pump relay(cheapest option)If still no joy your fuel pump is u/s.although hondas have a seperate small vacume type hose running off the back of the pump,any pump off a kawasaki zx7/zx9 will do the job(they are all made by the same firm)
SOURCE: lost cbr 600 f4 key?
http://www.carlsalter.com/motorcycle-manuals.asp
get a free pdf service manual for your bike here. you should find out how to remove the ignition. or if you have a seat lock that is easier to remove take that to a locksmiths to get new key cut
SOURCE: i need wiring schematic
I bought a cbr 600 , but bike came with the wirers not connected. Rectafire, was also not connected? need diagram or help really badly!!!!
SOURCE: rebuild the carb on a 98 honda cbr 900rr. Where
Dont rebuild unless absolutetly necessary or need to rejet. Try some Seafoam first, it might save you hundreds of dollars and a lot of frustration.
read directions on can or just try pouring 1/3 can into two gallons gas and really get on it ...it might clear up any hesitation or stalling if thats whats happening. I got mine at Autozone for $10.( And it fixed the problem after riding for about 15 miles.)
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