Polaris Magnum 2x4 Service Manual page 46

kg/cm
2 :
Kilograms per square centimeter.
kg-m:
Kilogram meters.
GENERAL INFORMATION
Glossary Of Terms
Kilogram/meter:
A force of one kilogram at the end of a lever one meter in length, applied in a rotational direction.
I or Itr:
Liter.
2
Ibs/in :
Pounds per square inch.
Left
Side:
Always referred to based on normal operating position of the driver.
m: Meter/meters.
Mag:
Magneto.
Magnetic Induction:
As a conductor (coil) is moved through a magnetic field, a voltage will be generated in the
windings. This is how mechanical energy in our engines is converted to electrical energy in the lighting coil, ignition
generating coils and trigger coil.
mi.: Mile/miles.
mm: Millimeter. Unit of length in the metric system. 1 mm
=
.040".
N-m: Newton meters.
00:
Outside diameter.
Ohm:
The unit of electrical resistance opposing current flow.
oz.:
Ounce/ounces.
Piston Clearance:
Total distance between piston and cylinder wall.
Piston Erosion:
Piston dome melts. Usually occurs at the exhaust port area. Possible causes: 1) lean fuel/air mixture;
2) improper spark plug heat range.
Pre-Ignition:
A problem in combustion where the fuel/air mixture is ignited before normal spark ignition. Piston looks
melted at area of damage. Possible causes: 1) too hot a spark plug; 2) spark plug not properly torqued; 3) "glowing"
piece of head gasket, metal burr or carbon in the combustion chamber; 4) lean fuel/air mixture.
Primary Circuit:
This circuit is responsible for the voltage build up in the COl capacitor. In the COl system the parts
include the exciter coil, the trigger coil, the wires from stator plate to COl box and to the low resistance primary windings
in the ignition coil.
Primary Clutch:
Drive clutch on engine.
psi.: Pounds per square inch.
PTO:
Power take off.
PVT:
Polaris Variable Transmission (Drive Clutch System)
qt.: Quart/quarts.
RPM:
Revolutions per minute.
Resistance:
In the mechanical sense, friction or load. In the electrical sense, ohms. Both result in energy conversion to
heat.
Right Side: Always referred to based on normal operating position of the driver.
RPM:
Revolutions per minute.
Running Time: Ignition timing when fully advanced or at specified RPM.
Secondary Circuit: This circuit consists ofthe large secondary coil windings, high tension wire and ground through the
spark plug air gap.
Secondary Clutch:
Driven clutch on chaincase or jackshaft.
Seized Piston:
Galling of the sides of a piston. Usually there is a transfer of aluminum from the piston onto the cylinder
wall. Possible causes: 1) improper lubrication; 2) excessive temperatures; 3) insufficient piston clearance; 4) stuck
piston rings.
Select Monitor:
Diagnostic tool which provides static and dynamic displays of the function of critical components in an
EFI system. It also has the capability to display the contents of the ECU memory.
Spark Plug Reach: Length of threaded portion of spark plug. Polaris uses 3/4/1 (2 cm) reach plugs.
Static Timing:
Ignition timing when engine is at zero RPM.
Stator Fiate: The plate mounted under the flywheel supporting the primary ignition components and lighting coil.
Surge Tank:
The fill tank in the liquid cooling system.
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