Oil Pump Troubleshooting; Fuel System - Polaris SCRAMBLER 50 Service Manual

OIL PUMP
TROUBLESHOOTING
PROCEDURE
To verify oil delivery to engine, proceed as follows:
Premix fuel in tank at a 40:1 fuel/oil ratio.
With the oil reservoir full and the pump bled, remove
the oil delivery line from the intake manifold.
Test the oil delivery check valve with a low pressure
pump and gauge.
Start engine and lift oil pump lever to full open position.
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 line leaking or blocked
C. Faulty oil pump or drive
mechanism
D. Air in oil Lines
E. Insufficient/Improper oil in oil tank

FUEL SYSTEM

WARNING
Gasoline is extremely flammable and explosive under
certain conditions.
Always stop the engine and refuel
outdoors or in a well ventilated area.
Do not smoke or allow open flames or
sparks in or near the area where refueling
is performed or where gasoline is stored.
Do not overfill the tank. Fill the tank to the
bottom of the filler neck. This will allow for
thermal expansion.
If you get gasoline in your eyes or swallow
gasoline, see your doctor immediately.
1.18
GENERAL INFORMATION
If you spill gasoline on your skin or clothing,
immediately wash it off with soap and water
and change clothing.
Never start the engine or let it run in an
enclosed area. Gasoline powered engine
exhaust fumes are poisonous, causing loss
of consciousness and death in a short time.
Never drain the float bowl when the engine
is hot. Severe burns may result.
FUEL LINES
1. Check fuel lines for signs of wear, deterioration,
damage or leakage. Replace if necessary.
2. Be sure fuel lines are routed properly and secured
with cable ties. CAUTION: Make sure lines are
not kinked or pinched.
3. Replace all fuel lines every two years.
VENT LINES
1. Check fuel tank, carburetor,and transmission vent
lines for signs of wear, deterioration, damage or
leakage. Replace every two years.
2. Be sure vent lines are routed properly and secured
with cable ties. CAUTION: Make sure lines are
not kinked or pinched.
FUEL FILTER
The 2003 youth models have been upgraded to a
molded--in screen type fuel filter.
The fuel filter should be replaced in accordance with
the Periodic Maintenance Chart or whenever
sediment is visible in the filter.
Fuel Filter