How do you test a VRO pump?
Start the engine, and monitor the pump cycles by using a fuel pressure gauge or by putting light finger pressure on the outlet hose.
- At 800 RPM, the oil level in the hose should drop 1″ in approx. 5 pulses.
- At full throttle, the oil level should drop 1″ in approx. 3 pulses.
What does a VRO fuel pump do?
The travel of the air motor pumps the fuel and the oil together to the carburetors and the alarm system monitors the oil pressure counts. Just like manually premixing the oil and gas, the VRO (OMS) automatically does the same thing and sends that fuel mixture to the carburetors.
What does VRO mean?
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What is the model number of the VRO pump?
Verify the correct VRO fuel oil pump for your motor by using the engine model number located on the mounting bracket of your outboard. 4-wire replacement VRO pump for Johnson and Evinrude models. Used on all motors except 2-cylinder 40-50 HP models.
What should I replace the VRO pump on my Evinrude?
Replacement VRO pump for Johnson / Evinrude models. Used to replace 3-wire pumps on all motors except 2-cylinder. Replaces the following previous VRO pump part numbers: 0174566, 0174257, 0174425, 0438406, 0175163, 0174879, 0174619, 0174563, 0174720, 0174567, 0174427, 0174264, 0175161, 0174565, 0175425, 0174424, 0174247, 0175162, 5004559 .
What kind of fuel pump does Johnson Evinrude use?
Pre-mix conversion kit fuel pump. Replacement fuel pump for Johnson Evinrude that does not mix oil and fuel. Replaces all Johnson Evinrude VRO fuel / oil pumps. Replaces the following previous part number: 0438402. Pre-mix conversion kit fuel pump. Replacement fuel pump for Johnson Evinrude that does not mix oil and fuel.
Where can I buy 2001 Johnson outboard parts?
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