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  1. #1
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    Default 04-up sportster primary cover hole pattern.

    Has anyone come across a mechanical drawing for the primary cover hole pattern on an 04-up sportster?

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    Quote Originally Posted by treebeard View Post
    Has anyone come across a mechanical drawing for the primary cover hole pattern on an 04-up sportster?
    Why do you ask?????????? Why not look at a real primary itself.....

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    That would be a very unusual item to be circulating outside HD and the aftermarket.

    To copy the pattern you can use transfer punches and a stock cover to get the bolt centers correct. That sort of thing is what transfer punches are for. Cheap is OK since they are for marking, not heavy punching. I'd mark then drill one hole, bolt the cover to your metal to be drilled, repeat on a distant hole, then the cover cannot shift as you mark and drill the rest of the holes.

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    V cool and helpful reply. Just wanted to see if someone had done this before and could save me a bit of work. Already did it and got everything I need. I guess if you ever need to know you can go look at a primary yourself too.

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    Thanks for the reply man. Got an accurate hole pattern into fusion 360 and was able to print out a "gasket" to confirm my work. Working on 3d printing a low profile floorboard in castable wax.

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    Interesting project.

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