Choclemmond51
Recruit
- Joined
- Apr 29, 2022
- Messages
- 1
This is a 2018 Rohatsu 20mfse..
How do you check to see if the ffp is getting a 2 second burst of 12 v power to the VST. WHILE TRYING TO CRANK IT WITHOUT disasembling the VST?
I cannot HEAR FFP MOTOR come on..(however I am 74 YRS OLD...LOL)
1.I have spark to plugs
2.Manual fuel pump is funtioning correctly and VST IS FULL OF FUEL ( I UNSCREWED DRAIN VALVE ON VST AND IT HAS FUEL RUNNING FREELY FROM VST)
3. PREVIOUSLY Completly cleaned &; rebuilt VST.
4. WHEN TURNING ENGINE OVER (SAFETY LANYARD IS CONNECTED) IT HAS NO FUEL PRESSURE
5.. VST is full of clean fuel
6.NO fuel pressure at shrader valve
7.It appears their is no voltage to ffp when key is turned on and engine is turning over.
(VST has new fuel regulator..new FFP motor ..NEW FLOAT VALVE AND NEEDLE VALVE IT JUST DOESNT SEEM TO BE GETTING VOLTAGE TO FFP.
WHAT IS THE CHAIN OF EVENTS THAT OCCUR FOR VST TO GET ITS 12V SIGNAL?
IT HAS A THREE WIRE CONNECTOR
THAT CONNECTS TO THE VST ON THE OUTSIDE
A YELLOW WIRE WITH A BLACK STRIPE.
A WHITE WIRE WITH A BLACK STIPE
AND A WHITE WIRE WITH A BLUE STRIPE
HOW CAN I TEST THESE WIRES WITH VOLTOMETER FOR POWER..
I DONT WANT TO SHORT OUT ECM BY IMPROPERLY TESTING THESE.WIRES .
AND FINALLY WHERE DOES THE VST GET ITSB12 VOLT SIGNAL FROM?
THANKS FOR YOUR SUGGESTIONS:>)
CHARLIE WEST
How do you check to see if the ffp is getting a 2 second burst of 12 v power to the VST. WHILE TRYING TO CRANK IT WITHOUT disasembling the VST?
I cannot HEAR FFP MOTOR come on..(however I am 74 YRS OLD...LOL)
1.I have spark to plugs
2.Manual fuel pump is funtioning correctly and VST IS FULL OF FUEL ( I UNSCREWED DRAIN VALVE ON VST AND IT HAS FUEL RUNNING FREELY FROM VST)
3. PREVIOUSLY Completly cleaned &; rebuilt VST.
4. WHEN TURNING ENGINE OVER (SAFETY LANYARD IS CONNECTED) IT HAS NO FUEL PRESSURE
5.. VST is full of clean fuel
6.NO fuel pressure at shrader valve
7.It appears their is no voltage to ffp when key is turned on and engine is turning over.
(VST has new fuel regulator..new FFP motor ..NEW FLOAT VALVE AND NEEDLE VALVE IT JUST DOESNT SEEM TO BE GETTING VOLTAGE TO FFP.
WHAT IS THE CHAIN OF EVENTS THAT OCCUR FOR VST TO GET ITS 12V SIGNAL?
IT HAS A THREE WIRE CONNECTOR
THAT CONNECTS TO THE VST ON THE OUTSIDE
A YELLOW WIRE WITH A BLACK STRIPE.
A WHITE WIRE WITH A BLACK STIPE
AND A WHITE WIRE WITH A BLUE STRIPE
HOW CAN I TEST THESE WIRES WITH VOLTOMETER FOR POWER..
I DONT WANT TO SHORT OUT ECM BY IMPROPERLY TESTING THESE.WIRES .
AND FINALLY WHERE DOES THE VST GET ITSB12 VOLT SIGNAL FROM?
THANKS FOR YOUR SUGGESTIONS:>)
CHARLIE WEST