Problem with the VST running out of fuel and starving the motor. The motor has had this intermittent problem since new but it's much more frequent now. No codes and the dealer can't replicate the problem at the shop.
To me, is appears that the VST isn't venting properly and building high enough pressure that the needle valve can't open to refill the VST. When the motor stalls, I release the pressure at the schrader valve and sometimes it's like letting the air out of a tire. Lots of pressure. Use the primer bulb to refill the VST and the motor starts and runs without issue.
I've run the motor with the vent lines from the VST disconnected so it vents into the atmosphere and no issues.
The venting solenoid is pulsating very fast and seems to be preventing sufficient vapour from escaping the VST.
The dealer has never seen or heard of this problem.
I'm thinking that this solenoid should be either on or off, not pulsating. Don't know, but I'm sure the problem is excessive pressure in the VST.
When the motor is running the solenoid is getting between 3 and 2.6 VDC. I see in the manual that the test for the solenoid valve uses battery voltage.
If anyone has access to a wiring diagram so I can trace the wires or if anyone has seen this problem before I'd really appreciate hearing from you.
Thanks
To me, is appears that the VST isn't venting properly and building high enough pressure that the needle valve can't open to refill the VST. When the motor stalls, I release the pressure at the schrader valve and sometimes it's like letting the air out of a tire. Lots of pressure. Use the primer bulb to refill the VST and the motor starts and runs without issue.
I've run the motor with the vent lines from the VST disconnected so it vents into the atmosphere and no issues.
The venting solenoid is pulsating very fast and seems to be preventing sufficient vapour from escaping the VST.
The dealer has never seen or heard of this problem.
I'm thinking that this solenoid should be either on or off, not pulsating. Don't know, but I'm sure the problem is excessive pressure in the VST.
When the motor is running the solenoid is getting between 3 and 2.6 VDC. I see in the manual that the test for the solenoid valve uses battery voltage.
If anyone has access to a wiring diagram so I can trace the wires or if anyone has seen this problem before I'd really appreciate hearing from you.
Thanks
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