Betting the windshield as well. Hard to tell from the pic but are there any sharp bends of sharper contours on the new windshield? It looks like there is right near the top adjusters. This was an issue with "Double Bubble" type windscreens on sport bikes. The sharp contour from one surface to another created a concentrated spot when the sun hit it just right. Similar to the spot created with a magnifying glass when positioned just so in direct sunlight.