I have a 2000 DR-Z 400 and I decided to have the gas tank boiled out and coated to get rid of some surface rust. the problem is when I re-attached everything (including the vacuume line to the petcock) and tried to crank it, it smoked like crazy. started leaking gas, fowling the spark plug and after having the carb rebuilt by a pro (who also put some kind of spring in the housing of the petcock he said to open the diafram?)I still can't diagnose what happened. it still won't run. I am draining the oil now to find that it has more gas in it than oil and I found your web site when I over filled it with 2 quarts and took the plug out and no oil came out. I found the posting about the oil being in the frame. Boy this is nothing like my old XR250 or 79 RM 125. any advice to a new DRZ owner???