GENERAL INFORMATION
1.21
OIL PUMP TROUBLESHOOTING PROCEDURE
To verify oil delivery to engine, proceed as follows:
1. Premix fuel in tank at a 40:1 fuel/oil ratio.
2. With the oil reservoir full and the pump bled, remove
the oil delivery line from the intake manifold.
3. Test the oil delivery check valve with a low pressure
pump and gauge.
4. Start engine and lift oil pump lever to full open position.
5. Oil should pulse from the delivery line every few seconds.
If it does not, suspect one of the following:
A. Oil line plugged
B. Oil tank vent line restricted
C. Oil line leaking or blocked
D. Faulty oil pump or drive mechanism
E. Air in oil Lines
F. Insufficient/Improper oil in oil tank
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