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  1. M

    1992 Mercruiser thunderbolt 4

    troubleshooting no spark on 92 thunderbolt 4 ignition system. I was wondering with the key on there should not be power to both the positive and negative side of the coil right? Mine has power on both sides with the key on was wondering if that was normal and if not what could cause that!!! Thanks
  2. M

    1990 Johnson 120HP V4

    Hello Can someone please tell me what the Head bolt torque is on a 1990 120HP Johnson V4 thanks Ty
  3. M

    1990 Johnson 120 HP V4

    Hello I was wondering if anyone could tell me what the head bolt torque was on a 1990 Johnson 120 HP V4 thanks
  4. M

    1990 Johnson 120HP V4

    Hello can anyone tell me what the head torque is on a 1990 120 HP V4 evinrude? Thanks!!!
  5. M

    1990 120 HP Johnson v4

    Hello can any one tell me what the head bolt torque is on a 1990 120 HP Johnson V4 thanks!!!!
  6. M

    1997 Mercury 175 hp EFI s stroke

    Hello I am not real familliar with this engine customer brought it in the voltage regulator had caught on fire and torched both regulators and the stator replaced the stator, regulators and fixed wire going to starboard temp sender. Anyways after all that it starts and runs but has no power...
  7. M

    Mercury 300 HP promax

    I am working on a mercury 300 hp promax it sat for 4 years with fuel in it I cleaned out the vapor seperater and sent the fuel injecters in and had them cleaned cause it wouldn't even start with that sludge. Anyways it starts and idles well it reves up good in neutral but under load it wont...
  8. M

    08 Mercury 90HP EFI

    I am working on a 20 foot boston Whaler with a 08 mercury 90 hp EFI Motor it is running ery rich black sludge is coming out of exhaust the top tw0 cylinders are getting so much fuel that they won't even fire. Any ideas?
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