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9924707 - 2013–2014 RZR 800 Service Manual
© Copyright 2013 Polaris Sales Inc.
5. Measure valve guide (C) inside diameter at the top
middle and end of the guide using a small hole
gauge and a micrometer. Measure in two directions.
Valve Guide I.D.:
0.23672" ± 0.000295"
(6.0617 ± 0.0075 mm)
6. Subtract valve stem measurement from the valve
guide measurement to obtain stem to guide
clearance.
Valve Stem Oil Clearance:
Intake: 0.00228" ± 0.00098"
(0.058 ± 0.025 mm)
Exhaust: 0.00275" ± 0.00098"
(0.087 ± 0.025 mm)
NOTE: The valve guides cannot be replaced. Be
sure to measure each guide and valve
combination individually.
Combustion Chamber
1. Clean all accumulated carbon deposits from
combustion chamber and valve seat area with
carbon cleaner and a soft plastic scraper.
IMPORTANT: Do not use a wire brush, metal
scraper, or abrasive cleaners to clean the bottom
of the cylinder head. Extensive damage to the
cylinder head may result. Wear safety glasses
during cleaning.
Valve Seat Reconditioning
NOTE: Polaris recommends that the work be done
by a local machine shop that specializes in this area.
NOTE: The cylinder head valve guides cannot be
replaced.
WARNING
Wear eye protection or a face shield during cylinder
head disassembly and reassembly.
Valve Seat Inspection
Inspect valve seat in cylinder head for pitting, burnt
spots, roughness, and uneven surface. If any of the
above conditions exist, the valve seat must be
reconditioned. If the valve seat is cracked, the cylinder
head must be replaced.
Follow the manufacturers instructions provided with the
valve seat cutters in the commercially available cylinder
head reconditioning kit. Abrasive stone seat
reconditioning equipment can also be used. Keep all
valves in order with their respective seat.
ENGINE
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