Possible injector issues???

ninjameaniekt... · Derestricted Danger Joined: 15 Sep 2014 Karma :

Hello Comrades

So my bike after starting and running for about 15 seconds was sounding sluggish and then died. Im now in the process of diagnosis. Here's what I have so far but would appreciate help and general direction I should pursue if anyone has had similar issues.

Bike details: new battery, 45000 miles, ZX6R p8f model 2008

I have found the the injectors are not spraying fuel. Any reasons why? I think the fuel line is pressurized and the pump works. The spark plugs all fire correctly. Im guessing and electrical issue but before I delve into the nightmare that Is the wiring loom is there anything that would stop the injectors passing fuel? I just used some paper towel to see if they were opening on pressing the engine start button but it was dry after a few false starts.

Many thanks
____________________
Kawasaki Ninja ZX6R, Kawasaki Meanstreak 1500, KTM RC8, KTM 450 SXF

Tdibs · Traffic Copper Joined: 16 Jan 2015 Karma :

Battery in decent nick?
____________________
Previous : 09 Vanvan 125| 02' Sv650s || Current: 1999 Xj600n | 1992 DR650 RSE | 2005 Fazer 1000

Copycat73 · World Chat Champion Joined: 11 Jan 2013 Karma :

MCN · Super Spammer Joined: 22 Jul 2015 Karma :

Be careful you don't inject fuel into your body. Smile

I haven't a scooby what controls that system.

Basic control is a pump sending fuel to the injector.
The injector being closed creates a pressure controlled by a relief valve.
The ecu sends current to the injector to open it.
Fuel sprays out.
(There can be more control on more sophisticated systems.)

So you could have:
A bad pump. (A PUMP CREATES FLOW IT DOES NOT CREATE PRESSURE.)
Bad fuel supply to injector/s (filter as said).
Bad relief valve. (CONTROLS PRESSURE.) Some pumps do not have a relief valve and output pressure is limited by the spring that drives the pump plunger. Max pressure is when the spring gets compressed and no longer moves the plunger.

Bad ECU. Bad power supply, earth, wet and all the other et ceteras.
____________________
Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

ninjameaniekt... · Derestricted Danger Joined: 15 Sep 2014 Karma :

Thanks guys - ill follow through with the advice and get back to you if im still at a dead end
____________________
Kawasaki Ninja ZX6R, Kawasaki Meanstreak 1500, KTM RC8, KTM 450 SXF

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Turn ignition on, listen for the pump priming for about 1-2 seconds. If it doesn't then either the pump is dead, the fuse is blown of the alarm is fubar.

If it has an alarm/immobiliser - suspect that first!
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy