2000 KTM 50 SX SR Bought it for my son this winter. He had 2 rides on it then suddenly it wouldn't make power and was bogging. Seemed electrical. So I fixed a ground and put a new plug boot on. Good spark, but still bogging under load. Had a funky clutch setup (far from stock) So I rebuilt the clutch and put in some new piston rings. Piston, cylinder and crank were still in mint shape, tight end of tolerances. Rebuilt carb, getting gas good, strong spark, good compression. So the only thing left was timing. Of course I have no manual yet as well so I put a rod down the plug hole and turned the flywheel. Timing definately out. Managed to pull the flywheel pretty easy without a puller, thank god I didn't have to wait to get that... So sure enough woodruff key is basically dust. No biggie, but in doing so it chipped the crank on the side that gets pressure from spinning. So one side is perfect the other side has maybe a 1/16" of the original edge to hold the woodruff key. Like I said besides this crank is in perfect shape, and I got a 5yr old jonesing to ride at the MX track on Tuesday. Will JB weld be strong enough to hold the new key in place? Any other ideas on how to build up this area. A new crank will be in this bikes future but I'm looking for some kind of McGyver temporary fix. Ideas I'll post up some pics of it tomorrow.