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ENGINE
DATA
POLARIS
STAR EC65PF
Bore
-
Inches (mm)
Stroke
-
Inches (mm)
No.
of Cylinders
Displacement
-
Cu.
In.
(ee)
RPM
-
Standard
Carburetor:
Make, Model
&
Size
Number Used
Ignition:
67.75
(mm)
60 (mm)
3
649 (cc)
(7,000)
Tillotson HD
3
Make & Model
Kokusan
Type
-
Energy
Transfer
( )
Capacitor
Discharge ( x)
Magneto
( )
Breaker Point
Gap
-
Inch
(mm)
None
Automatic Timing Advance
-
Yes
(x)
Timing Checked at
-
No
( )
Advance (x
)
Retard
( )
Setting - °BTDC:
Inches
(mm) 3.5 max.(mm) 5,00Ock
Spark Plug
Make
&
Model
Spark
Plug Gap
-
Inch (mm)
with timing light
AC41XL NGKB8ES
.030
0
Alternator Output
12 Volts
75 Watts
Fuel/Oil Ratio
20
-
1
Special
Oil
Recommendations:
Polaris
Snowmobile
Oil
6
POLARIS
STAR EC79PF
_
Bore
-
Inches
(mm)
Stroke - Inches
(mm)
No.
of Cylinders
Displacement
-
Cu.
In.
(cc)
RPM
-
Standard
Carburetor:
Make, Model
&
Size
Number Used
Ignition:
75
(mm)
60
(mm)
3
795
(cc)
(7,000)
Tillotson HD
3
Make & Model
Kokusan
Type
-
Energy Transfer
( )
Capacitor Discharge
(x)
Magneto
( )
Breaker Point Gap
-
Inch (mm) None
Automatic Timing Advance
-
Yes
(x)
No
( )
Timing Checked at
-
Advance
(x)
Retard
(
)
Setting
_oBTDC:
Inches
(mm)
3.5
max.(mm)
5,000ck
with
timing light
Spark Plug Make & Model
Spark
Plug Gap
-
Inch
(mm)
AC41XL
NGKB8ES
.030
0
Alternator Output
12 Volts
75
Watts
Fuel/Oil Ratio
20
-
1
Special
Oil
Recommendations:
Polaris
Snowmobile
Oil
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