Polaris 2009 Sportsman XP 850 User Manual

5.5
ENGINE
5
Engine Specifications - EH085OLE-011
CYLINDER HEAD (IN. / MM)
Camshaft
Cam Lobe Height - Intake (Standard) 0.897" (22.795 mm)
Cam Lobe Height - Exhaust (Standard) 0.908" (23.067 mm)
Camshaft Journal Outer Diameter - (All) .8632" ± 0.0004" (21.925 ± 0.01 mm)
Camshaft Journal Bore Inner Diameter - (All) .8661" ± 0.0004" (22.000 ± 0.01 mm)
Camshaft Oil Clearance 0.0034" ± 0.0008" (0.086 ± 0.02 mm)
Camshaft End Play 0.008" ± 0.004" (0.20 ± 0.10 mm)
Rocker Arm and
Shaft
Rocker Shaft O.D. (Intake and Exhaust) 0.5501" (13.973 - 13.984 mm)
Rocker Arm I.D. (Intake and Exhaust) 0.5514" - 0.5525" (14.006 - 14.033 mm)
Rocker Shaft Bore I.D. (Intake and Exhaust) 0.5514" - 0.5525" (14.006 - 14.033 mm)
Cylinder Head
Cylinder Head - Surface warp limit 0.004" (0.1 mm)
Cylinder Head - Standard height 3.611" (91.71 mm)
Valve Seat
Valve Seat - Contacting Width - Intake
0.047" ± 0.008" - 0.0039"
(1.20 ± 0.20 mm)
Valve Seat - Contacting Width - Exhaust
0.047" ± 0.008" - 0.0039"
(1.20 ± 0.20 mm)
Valve Seat Angle 45.5° ± 0.25°
Valve Guide
Valve Guide Inner diameter 0.217" + .0005" - 0.0 (5.52 + .012 - 0.0 mm)
Valve Guide Protrusion Above Head - Intake 0.361" ± 0.010" (9.18 ± 0.25 mm)
Valve Guide Protrusion Above Head - Exhaust 0.276" ± 0.010" (7.00 ± 0.25 mm)
Valv e
Valve Lash (Cold) - Intake 0.006" (.152 mm ± 0.025 mm)
Valve Lash (Cold) - Exhaust 0.009" (.228 mm ± 0.025 mm)
Valve Margin Thickness - Intake 0.016" (.41 mm)
Valve Margin Thickness - Exhaust 0.023" (.59 mm)
Valve Stem Diameter - Intake 0.2163" ± 0.0003" (5.495 ± 0.0075 mm)
Valve Stem Diameter - Exhaust 0.2159" ± 0.0003" (5.485 ± 0.0075 mm)
Valve Stem Oil Clearance - Intake 0.0014" ± 0.0005" (0.035 ± 0.0135 mm)
Valve Stem Oil Clearance - Exhaust 0.0018" ± 0.0005" (0.045 ± 0.0135 mm)
Valve Stem Overall Length - Intake 4.6681" ± 0.012" (118.57 ± 0.30 mm)
Valve Stem Overall Length - Exhaust 4.5649" ±
.012" (115.95 ± 0.30 mm)
Valve Spring
Valve Spring Free Length 1.861" (47.26 mm)
Valve Spring Installed Height
Intake - 1.650" (41.91 mm)
Exhaust - 1.650" (41.91 mm)
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Polaris 2009 Sportsman XP 850 Specifications

General

Brand	Polaris
Model	2009 Sportsman XP 850
Category	Offroad Vehicle
Language	English