Combustion Chamber Cleaning; Valve Sealing Test - Polaris RANGER XP 1000 2018 Service Manual

ENGINE / COOLING / EXHAUST

COMBUSTION CHAMBER CLEANING

WARNING
Wear eye protection during combustion chamber
cleaning.
1. Clean all accumulated
combustion chambers and valve seat area
Carbon Clean Fuel Treatment (2871326) can be used
to help remove carbon deposits.
Do not use a metal scraper, a coarse wire brush or
abrasive cleaners to clean the cylinder head. Damage
may result.
2. Visually inspect cylinder head gasket surface and
combustion chamber for cracks or damage. Pay
close attention to areas around spark plug and valve
seats.
3.36
carbon deposits
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NOTE

VALVE SEALING TEST

1. Clean and dry the combustion chamber area
2. Pour a small amount of clean solvent into each
intake port
valves. The valve seats should hold fluid with no
seepage.
from
3. Repeat for exhaust valves by pouring fluid into each
exhaust port
9928487 R01 - 2018 RANGER XP 1000 Service Manual
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and check for leakage around the
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© Copyright Polaris Industries Inc.
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