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PAGE 12 — HS81A CUT-OFF SAW — OPERATION & PARTS MANUAL — REV. #2 (07/26/10)
HS81A CUT-OFF SAW — SPECIFICATIONS
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Table 2. HS81A Power Source Specifications
Engine Type Two-Stroke, Single Cylinder, Air cooled
Displacement 4.92 cu. in. (80.7 cc.)
Maximum Spindle Speed 5,100 RPM
Engine Speed 10,000 RPM
Idle Speed 2,500 RPM
Dimensions (LxWxH)
31.5 x 8.7 x15.75 in.
(800 x 220 x 400 mm)
Fuel Tank Capacity .23 Gallons (.9 Liters)
Fuel/Oil Mix Ratio See Figure 13
Starting Method Recoil Start
Ignition
Type
Electronic
Speed Controlled
Gap .014 in. (.35 mm)
Spark Plugs
Manufacturer Champion/NGK
Type RCJ7Y/BPR6A
Gap .02 in (.5 mm)
Carburetor
Manufacturer Walbro
Model WJ85
Type
Diaphragm/
Semi-Fixed Jet
EPA Approved