Bought a 2001 YZF426. New plastics, tires, runs great. Etc. Brought it home, rode it for the first time for any length, let it sit, came back. And found the following; A small oil leak due to a hairline crack above the drain plug that had some sort of 'bondo' on it. Water pump is leaking out the little "hole" I am more concerned about the crack. It leaks about a drop in minute, so if I was a thrasher, I'd just keep adding oil. Would like to get this fixed. Can it be welded and if the drain plug hole stripped, can it be retapped? If so, take it to a dealer, or to a welding shop? Second question, should I replace the whole water pump, or find out what is wrong inside? I am not a mechanic, so..... I guess that's what you get when you pay 2400 bucks for a 2001 YZF. Better than 6k for a new 450! Can the engine hairline crack be welded?