Join Date: May 2009
I Ride: B1H ZX6R 636 2004
Starting Problems zx6r 636 B1H 2004
A while ago my bike began having starting problems, there seemed to be no rhyme or reason to the fault.
It is intermitent and seems to be getting worse. It is very annoying as I use the bike daily, and have done throughout the winter. The bike has covered 17,700 miles. I have continually maintained the bike and it is in good order. I have regularly serviced it and am an professional engineer with some knowledge of electrics.
The problem occurs when I try to start the bike, once going it seems to run fine throughout the rev band.
The symptoms; I turn on the ignition switch and all lights up, the subthrottle sets and the meter lights all appear normal, when I hit the starter button the front light is stopped from illuminating and the engine turns over but it just doesnt fire. It can happen if the engine is hot/ cold in the wet or dry. If I then rock the bike to and fro and apply brakes pull the clutch lever in shake it about - always with a turn off and on of the ignition switch it will eventually fire up. It can take up to 10 minutes and so far I have not been left stranded (thankfully!). The dealer mode (2) indicated two problems before I started messing about with it, namely 13 & 14 (air inlet temp sensor and water temp sensor) both of which wouldnt if failed cause it not to start as the ECU would take a default value.
I have spent a couple of days testing ECU grounds, power supply and resistances of sensors, main ECU relay, pump relay etc.
Today I removed the fairing, tail fairing, petrol tank and airbox. A couple of the connectors did have some light corrosion (greening) which I cleaned with electical contact cleaner and sprayed with silicon. I was hopeful but put it all back together and still no joy. However the EFI code (dealer code 13) again gave inlet temp sensor problem
Has anyone got any suggestions or experienced similar problems?