"Deano.... It's always pos
"Deano.... It's always possible that the VRO is acting up, allowing more oil than usual to be injected at times. If you wanted to do away with the automatic oiling setup on a trial basis, and mix the oil with your fuel, you could do the following..... and you could reverse the procedure should you prefer the automatic oiling setup.
(VRO Pump Conversion To Straight Fuel Pump)
You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup by doing the following:
1 - Cut and plug the oil line at the engine so that the oil side of the VRO pump will not draw air into its system. Trace the wires from the back of the VRO to its rubber plug (electrical plug) and disconnect it. (In your case, as a trial, remove the oil line at the engine and plug it, then attach a short hose to the fitting you just removed the oil line from and plug it also.)
2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank. (In your case, don't remove the tank yet, just disconnect those two wires.)
3 - Mix the 50/1 oil in the proper amount with whatever quanity fuel you have. Disconnect the fuel line at the engine. Pump the fuel primer bulb until fuel exits that hose with the tint of whatever oil you used. Reconnect the fuel hose.
That's it. If you want to test the heat warning system to ease your mind, have the key in the on position, then ground out the tan heat sensor wire that you'll find protruding from the cylinder head. The warning horn should sound off.
If the engine now runs properly, and does not smoke as you've stated, obviously the VRO pump is at fault. This leaves you with two choices. One being to purchase a new VRO pump, the second is to make the change over permanent. Good Luck.
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