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Polaris 2009 Sportsman XP 850 - Balance Shaft Installation

Polaris 2009 Sportsman XP 850
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5.55
ENGINE
5
Balance Shaft Installation
See “Balance Shaft Timing” on page 5.56.
1. Balance shafts are identical but should be installed in the
same location as removed.
2. Rotate crankshaft until the two alignment dots crankshaft
gear are visible (page 5.56).
3. As viewed from gear end, rotate split gear counter
clockwise until teeth are aligned and hold in position.
4. Install balance shaft, placing tooth with single dot between
two dots on crankshaft gear. Align bearing locating ring in
groove on crankcase and fully seat the shaft.
5. Rotate crankshaft until SINGLE dot on crankshaft gear is
visible.
6. Align single dot of drive gear between two dots of balance
gear.
7. Align bearing locating ring in groove on crankcase and
fully seat the shaft.
8. Verify balance shaft timing is correct by comparing to
illustration (page 5.56).
9. Place balance shaft end plugs in upper crankcase.
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