Operations Manual
HKS 700E
28
10.4. Engine overheats, Oil temperature over 120 Deg.C (248 Deg.F)
Cause Action
Fuel-air mixture too lean Check adjustment and operation of
carburetor and correct if necessary.
Too much oil remaining in the
crankcase
Check the oil return line.
Insufficient air-flow to the oil cooler Check and clear the air passages.
Insufficient oil supply Check oil level and fill if necessary.
Poor oil quality Change oil. Use prescribed oil grade.
Oil filter blocked Change the filter.
Defective oil temperature gauge Replace the gauge.
Excessive piston blow by Major overhaul is necessary.
Bearings defective If there is metal contamination in the
crankcase sump, a major overhaul is
necessary.
Intake manifold leaky Tighten all connections of the intake.
Replace any defective parts.
Carburetor Insulator damaged Check mounting of carburetors and
the insulator rubber for cracks.
10.5. The engine does not develop full power
Cause Action
Ignition trouble Tighten all connections.
Too much oil remaining in the
crankcase
Check oil return line.
Fuel supply inadequate Check fuel filter.
Incorrect fuel grade Refuel with prescribed grade fuel.
Throttle lever incorrectly adjusted Adjust the throttle cables to allow full
range on carburetors.
Intake leaking Tighten all connections. Replace
defective parts.
Carburetor diaphragm damaged Replace carburetor diaphragm.