I spent a couple weeks with a piece of masking tape stuck on the inside of the screen to get an idea how much to cut off.
There are many ways to do this. This is what I did. Establish a center point at the bottom.
The piece of tape at the upper center is a test view locator I drove around with to establish a viewpoint. The windshield on this bike can adjust up by 2". Cover both sides of the windshield with masking tape to draw the layouot and to prevent scratches.
Cover both sides of the windshield with masking tape to draw the layouot and to prevent scratches.
Establish a top center point with a soft tape that will follow the curve.
Run a line from the top center to the bottom center and mark off where the horizontal cut will be.
Establish left and right edge points by measuring from the bottom center. They can be lower than the center point.
Run a string across the windshield connecting the center and end points..
Mark dots along the line. The dark dots make it easy to follow when you're cutting.
Remove the string. I also could have measured 20 or 30 points 4" down from the top to reproduce the profile. I didn't do this because I wasn't sure the top profile would work this far down the wind shield.
I moved outside because the cutter will create dust.
I'm using a 4-1/2" x 1mm (thin) metal cut-off wheel on a Dewalt grinder.
I covered the bike up with a tarp. The plastic chips and dust makes a mess, gets everywhere and clings to everything.
Hold the wheel flat and feed it just enough to cut. Don't push it. This is the easy part. The wheel makes a nice clean cut.
You can use the wheel to touch up any unevenness or bumps.. Do this sparingly. Sand paper is going to be your friend.
This is the 4-1/4" piece I cut off. You can see the dust clinging to everything.
I sanded the edge a little. It works like wood. I'll sand and finish the cut once I've tested out the new height.
Peel off the tape and clean up the dust with glass cleaner and a clean rag.
Here's a section of the piece I cut off. There's a little melted plastic mixed with masking tape.
The 4-1/2" cutoff piece. Save this to practice using a heat gun or a propane torch to smooth out the edge.
I'm using a 4-1/2" x 1mm (thin) metal cut-off wheel on a DeWalt grinder.
I sanded the edge and it now looks good..
