Page 173 - Manual Oficina Polaris Sportsman 570 2014 a 2016
P. 173

ENGINE / COOLING SYSTEM


                   VALVE SEALING TEST                                    COMBUSTION CHAMBER CLEANING
                   1. Clean and dry the combustion chamber area.
                                                                                               CAUTION
                   2. Pour a small amount of clean solvent into each
                       intake port q and check for leakage around the        Wear eye protection during combustion chamber
                       valves. The valve seats should hold fluid with no                      cleaning.
                       seepage.
                                                                         1. Clean   all  accumulated  carbon  deposits  from
                   3. Repeat for exhaust valves by pouring fluid into each
                       exhaust port w.                                       combustion chambers and valve seat area q.

                                                                                                                              3



















                                                                                               NOTE
                                                                           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 the areas around spark plug and
                                                                             valve seats.


































                   9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual                          3.51
                   © Copyright Polaris Industries Inc.
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