1 K75 running very rich Thu Oct 08, 2015 7:26 am
Grahame
active member
Hi I'm a new member with a problem K75RT.
The bike was running well until it stalled at a junction and wouldn't start again.
Can get the engine to run reluctantly but only with the throttle half open, lots of smoke. The engine stops if the revs drop below 3000, the bike is unridable.
The plugs are all identically black and sooty (not oily)
The indications are the engine is running very rich.
The injection control and ignition units are ok. The injectors are all ok. Examined the air flow meter and it is mechanically ok but haven't tested the air temperature sensor or potentiometer.
The fuel pump is running and there are no internal leaks within the tank pipework.
Suspect either the pressure relief valve on the fuel pump or the fuel pressure regulator (although, looking at a diagram of this unit it looks like it can only fail open which would give low pressure at the injectors) Anybody had a similar fault, I've looked back on the forum but can't match the symptoms exactly. Any advise welcome.
The bike was running well until it stalled at a junction and wouldn't start again.
Can get the engine to run reluctantly but only with the throttle half open, lots of smoke. The engine stops if the revs drop below 3000, the bike is unridable.
The plugs are all identically black and sooty (not oily)
The indications are the engine is running very rich.
The injection control and ignition units are ok. The injectors are all ok. Examined the air flow meter and it is mechanically ok but haven't tested the air temperature sensor or potentiometer.
The fuel pump is running and there are no internal leaks within the tank pipework.
Suspect either the pressure relief valve on the fuel pump or the fuel pressure regulator (although, looking at a diagram of this unit it looks like it can only fail open which would give low pressure at the injectors) Anybody had a similar fault, I've looked back on the forum but can't match the symptoms exactly. Any advise welcome.
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K75RT ABS Mystic Red 1995 7th owner
Engine No.753EA 0294
Chassis No. 03706294134
Mileage 24/12/18 40,399