I just repaired the hood on one of our sleds. Go to a shop that sells paints and repair stuff for cars. They have a plasitic repair kit (like a two part epoxy) for plastic bumpers and such that you can buy in different sizes depending on how much you need. Can get the big tube(s) with the mixing attachment..kind of spendy if you are going to use only a small amount, or there is a small tube. I got the small one and hand mixed it. Was about $10.00. Had a crack that was about four inches long and was just enough. Try to get it as straight as you can and make a V with a dremel or die grinder in the back side of the break...not going all the way through. Then rough up around the sides and used a plastic mesh that drywallers use for taping, is about 2 inches wide with adhesive on one side. Stickes to the plastic well enough to hold it in place to mix the repair material and spread it on covering the mesh. Takes anout 15 minutes and is basically dry. It stays somewhat pliable and sticks real good. No holes or anything from the outside you just see the crack. If you go past the crack an inch or so it should keep it from running. I have another hood that was fixed the same way 3 years ago and it looks just the way it did when it was repaired.