arnold wente Posted October 3 Member ID: 1,212 Content Count: 18 Reputation: 0 Joined: 09/03/2021 Status: Offline Last Seen: October 5 Share Posted October 3 Does anyone know what the compression on a 2021 HD 8 should be thanks in advance Link to comment Share on other sites More sharing options...
0 honda400ex2003 Posted October 9 Member ID: 1,660 Content Count: 162 Reputation: 33 Joined: 07/08/2022 Status: Offline Last Seen: 11 hours ago Share Posted October 9 10.3:1 should be about 150psi, if that is the same engine that i found a spec for online. either way, 130-150psi should be what a good running engine has. steve Link to comment Share on other sites More sharing options...
0 honda400ex2003 Posted October 9 Member ID: 1,660 Content Count: 162 Reputation: 33 Joined: 07/08/2022 Status: Offline Last Seen: 11 hours ago Share Posted October 9 i see you had the fuel pump question as well. did you pump out the fuel and add new? is it still just popping? steve Link to comment Share on other sites More sharing options...
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arnold wente
Does anyone know what the compression on a 2021 HD 8 should be thanks in advance
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