Timmaay Posted April 13, 2009 Share Posted April 13, 2009 When doing a compression test how do you disable the fuel so it doesn't spray in there while cranking the engine over? Or do I even need to worry about that? Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 13, 2009 Share Posted April 13, 2009 just unplugg the fuel pump power in the rear. Link to comment Share on other sites More sharing options...
jpdocdave Posted April 13, 2009 Share Posted April 13, 2009 do mj's have a fuel pump relay? should. if yours has a relay, you can pull it and then i always start it, and it will sometimes run for a second. when it dies you know you killed the fuel. ground the coil wire also. Link to comment Share on other sites More sharing options...
Eagle Posted April 13, 2009 Share Posted April 13, 2009 Yep. Just pull the relay. Link to comment Share on other sites More sharing options...
Geonovast Posted April 14, 2009 Share Posted April 14, 2009 I usually just pull plug wire off the coil. Been toying with the idea of installing fuel pump kill switches... Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 14, 2009 Share Posted April 14, 2009 I usually just pull plug wire off the coil. Been toying with the idea of installing fuel pump kill switches... I did on mine and loved it for when I had my tube doors on, added securtity if someone gets brave :fs1: Link to comment Share on other sites More sharing options...
watchamakalit Posted April 14, 2009 Share Posted April 14, 2009 Pull the relay and run it till it dies. Link to comment Share on other sites More sharing options...
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