Custom Built Starter Problem

Discussion in 'Other Service and Maintenance' started by RadRick71, Mar 10, 2009.

  1. RadRick71

    RadRick71 New Member

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    Having electric start problem with a 1993 custom built. My first time T/S'ing a system with jackshaft. New battery and cables, second starter in couple years. Wiring good all way to st relay and to starter. With the plugs out motor turns over like suppose to, zings right along. Put the plugs in and leave the wires off, hit st button, and it acts like bad connections or low battery. Just clicks and chatters, then will just clunk and wires start to get hot. Any ideas out there? Thanks, Radical Rick
     
  2. glider

    glider Veteran Member

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    Rick

    What size engine and what's the compression ratio. Do you have compression releases in the heads?
     
  3. RadRick71

    RadRick71 New Member

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    Don't know size of motor, has 10.5 wisco pistons, no releases.
    This problem has just started within the last couple years.
    My thought it is going thru stock starters and needs higher torque one?
     
  4. dangerdan

    dangerdan Junior Member

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    I would start by cleaning the battery cables and the starter cables. Corrosion or a bad connection would limit the amount of amps going to the starter.
     
    Last edited: Mar 10, 2009
  5. RadRick71

    RadRick71 New Member

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    Brand new cables and wires
     
  6. glider

    glider Veteran Member

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    Your compression ratio could be part of the problem. Carbon buildup may have raised that some too. A high torque starter would no doubt help with that CR.

    Try this...

    Removing Carbon - Harley Davidson Community
     
  7. jel123

    jel123 Active Member

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    Start with a good battery like oddessey cured my problem on a 120 with 10.2 to 1 ,jel