I am doing some work on a 1999 WR400 for a friend of mine. It has been sitting a year and the carburetor is completely gummed up. He wants it running primarily to sell it so he can pay some expenses that have come up. He has removed the carburetor and cleaned it but was unable to start it afterwards. I reremoved it and found a plugged up pilot jet. I cleared the jet and attempted to start it. I have had start briefly 4 or 5 times but never runs longer than a second. I am probably going to completely remove the carburetor again and this time completely re-clean everything. Any ideas on what to look for? I will probably need to get a kit for the carburetor as accelerator pump is now leaking too. Any electrical problems that could cause this also? I have to say I have never owned a 4 stroke of this vintage. Back in 1999 I was still riding 2 strokes as most of us were. I didnt switch to a 4 stroke until 2005 (Honda). I am not real familiar with operating a compression release. Right now my procedure is pull the compression release and rotate the engine around 2 short kicks. Let go of the release lever and give it one solid kick. Half the time compression stops my kick right in its tracks. I am wearing boots when I do this as starting with tennis shoes on is not an option. During my hour long right leg work out this morning, my knee bumped against the gas tank and hole broke in the side of the tank about the size of my fist. The tank says clark on it but it does not appear to be larger than stock. I stuck my old tank from 2006 WR450 on it to continue trying to start it. No plastics and cant bolt it on but it sits ok in position. Finally my final question. Is once it is all running and cleaned up what is the value realistically for this bike. It is California Plated street legal with current registration. We would like to get around 3000 . I am not sure if that is realistic or not. Thanks ahead of time.