Thank you for the reply.
The M line is on the M line of the tank diagram that is on the back of the fuel tank.
Today took the gas cap off again and looked at the fuel pump, it primes and is sitting in a good bath of fresh fuel. I then took the line off post filter to see if the filter was plugged, turned on ignition fuel will spray out of the filter.
I replaced the submersible gas line that goes from filter to hardline of the fuel tank, also new submersible line from fuel pump to fuel filter.
I then replaced the main fuel line to injector with proper fuel injection hose, no resolution, except all the fuel that did spill into the throttle bodies during this bloody messy procedure did get the bike to start and idle for a couple of seconds.
I have tried reversing these lines that you mention from the fuel tank, that does not get the bike started.
I have just ordered an inline fuel pressure gauge to run pressure on the M line to see what it is getting.
It does seem like the spray is weak off the injectors.
I will check the timing on the bike tonight, maybe the injectors are firing at the wrong time if out of time?
Do many people experience gunked up fuel pressure regulators?
I think the following maybe the culprits:
-Bad wiring harness to injectors not giving full voltage
-Bad Fuel pressure regulator
-Bike is somehow out of time having injectors fire at the wrong time
Where is the FPR? These throttle bodies pictured are identical to mine, fuel lines and all, I am not seeing a FPR.
https://www.ebay.com/itm/Ducati-Multistrada-620-05-Throttle-Bodies-Body-Fuel-Injectors-7K-Miles-2005-OEM/272974477360?hash=item3f8e8bf830:g:s34AAOSwTQtaKr45:sc:USPSPriority!27601!US!-1:rk:10:pf:0
Open to ideas thank you!