So the latest installment... still not starting...
12V Lithium Charged and 12v Booster Attached
- We got some Easy Start spray over the weekend - took out the Air Filter and gave it a dose
- Cleaned Earths at Frame again
- We took out the Injectors and watched the spray pattern/volocity - looks weak to us, mild squirting going on but nothing to compare it too except a Video on Youtbe, but all three are squirting fuel. We've ordered a Manometer to measure Fuel Pressure and Drop.
- Started to measure voltage and resistance at the ICU Female Connector
- Sparks wise we had nothing again, went back to the troubleshooting bible and measured a low voltage on Pin 2 of the ICU - the Hall sensor Feed - not 12v, more like 11v dropping to 8v when cranking which would point to issues energizing the Coils and wiring problems
- So we fashioned a direct permanent 12v direct to the Hall Sensor plug - 2/3 sparks came back.
In all we had it firing and popping, breifly - but only we suspect on 2/3 cylinders and only consuming Fast Start not Petrol/Gas.
Saw an online video about squirting 10ml of Oil into Each Cylinder - to get it too start, but not tried this...?
Anyone one know if this is real - Engine Oil?
In addition we've swopped out and gone back to original after no change most of the major ignition units including ICU, ECU, Hall Sensor, New Plugs, Fuel Relay, Checked all Fuses, Starter Relay, Compared Water Temp Sensor to known good for resistance = identical.
So we still have what seems like Electrical gremlins - low Voltage/bad Earth to Hall Sensor - New Earth strap ordered.
Suspected low Fuel pressure - but unconfirmed pointing at Pump or Pressure Regulator?
As ever, ideas and further lines of enquiry welcomed - the Bike is still driving us both mad..
We've also used all the other tricks learnt to date - taking the Pump Fuse out and putting it back in, taking the TPS connector on and off.
With Easy start - it needed the Choke out to part fire.. and it only ran rough for a few seconds, pointing at Fuelling issues we think. Pump is activating and all relays are kicking in.
Can anyone confirm the Fuel Pump Pressure on a K75 for when we get the Meter?
K100 Guide says 65 PSI from Pump dropping to 35 PSI at the regulator - is this the same for the K75?
Can anyone give a definitive on why we are only seeing 2 sparks out of 3 - what does that point too?
Thanks again for bearing with this sorry tale...