Vintage Dirt Bike Q & A

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PostPosted: Thu Nov 25, 2004 12:20 am 
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Joined: Mon Jan 26, 2004 10:40 am
Posts: 310
Location: Sacramento, CA
Anyone have a method for drilling mounting holes in new fenders so they are as straight as stock? Thanks!

J

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#829 The "Factory Novice"

1988 Honda CR250RJ
1983 Honda CR480
1981 Can-Am 250 MX6-B
1979 Honda CR250RZ
1979 Kawasaki KX250 A5
1978 Husky 250CR
1978 Honda CR250R
1977 Yamaha YZ400D
1977 Suzuki RM125B


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 Post subject: Holes
PostPosted: Thu Nov 25, 2004 7:42 am 
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J: My advice measure scribe and drill on a bench press with a wood bit. You can use the wood pit as a pilot hole. I think the size is either a 7/8 or 1" bit. I have done quite a few sets this way.


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PostPosted: Fri Nov 26, 2004 11:21 am 
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Joined: Tue Mar 04, 2003 8:46 am
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Location: Alpine, UT
Another way to go is this. Take the new and old fender and mirror them at the flat mounting surface. Then take two pieces of plywood and sandwich the two fenders between them. Then take a scribe and go around the old mounting holes, scribing the new fender. Then just find the center of the scribed outlines and drill them out.


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PostPosted: Mon Nov 29, 2004 12:53 pm 
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Joined: Thu May 06, 2004 6:41 am
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Location: Dearborn, MI
Nathan has a good idea, but I'd use a transfer punch instead of a scribe.
The transfer punch gives you the center of the hole only.

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