Boat Maintenance: Down on power
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Name:   Shortbus The author of this post is registered as a member - Email Member
Subject:   Down on power
Date:   7/8/2016 2:39:44 PM

Someone just gave me a 1997 Mercury 75HP.  Looks like the top cylinder has 90# compression.

90# cylinder runs intermittantly.

 

Cylinder wear likely from no lube.  No lube likely from no fuel/oil delivery.  No fuel/oil delivery likely from clogged carb.

Clogged carb likely from ethanol.

 

Buy a compression gauge and test all cylinders.  Below 100-110# needs rebuild.

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Other messages in this thread:View Entire Thread
Down on power - anchor down - 7/8/2016 12:25:51 PM
     Down on power - Shortbus - 7/8/2016 2:39:44 PM
          Down on power - CAT BOAT - 7/9/2016 6:24:16 PM
               Down on power - anchor down - 7/16/2016 6:51:25 PM
                    Down on power - GoneFishin - 7/16/2016 10:54:11 PM
                         Down on power - CAT BOAT - 7/17/2016 9:38:19 AM
                              Down on power - anchor down - 7/17/2016 10:13:48 AM
                                   Down on power - Shortbus - 7/18/2016 9:39:14 AM
                                        Down on power - anchor down - 7/26/2016 9:06:23 PM
                                             Down on power - Shortbus - 9/21/2016 2:48:57 PM
                                                  Down on power - Shortbus - 4/5/2017 1:29:12 AM
                                                       Down on power - anchor down - 4/5/2017 7:59:13 AM
                                                            Down on power - Shortbus - 4/5/2017 10:01:27 AM
                                                                 Down on power - anchor down - 4/5/2017 12:31:43 PM
                                                                      Down on power - Shortbus - 4/5/2017 2:09:40 PM
                                                                           Down on power - anchor down - 4/5/2017 2:30:39 PM
                                                                                Down on power - Shortbus - 4/5/2017 4:48:14 PM

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