Jaiidutch

i put on a new fuel line sorry forgot to add that in the original post

ok so ill try and make this as short as i can i really hope someone here can help me figure this out... bought a 2001 Mojave 250 from some one not running.. was running till ??somthing?? happend. was told before it stopped running it had a timing chain slap sound so the chain was replaced. got the quad home and did a compression test results were 0psi...lol decided to break the engine down n see whats going on. found a brand new timing chain installed and yet 2 valves pushed into the head..so i ordered a top end gasket set and all new valves and lapped them in. while the head was off i did a broke man leak down and filled the cylinder with thin oil and let it sit for a few days and none of it leaked so i assume the rings are good. reinstalled the head with new head gasket and valves. re did a compression test and I'm seeing 80psi(i don't really trust my cheap tester). I kick start the quad over and it will run for about 10 seconds and then die. I'm getting good blue spark. cleaned the carb and tried again... i can kick 10 times and it will only start for 10 seconds or so. swapped my carb, throttle cable & thumb throttle from my 87 Honda 250x to the Mojave and same result 10 seconds... had a friend bring over a known good working Mojave carb and you guessed it same results 10 seconds. even swapped to a back up stator that i have and same thing... what in the world is going on! i dont know what els to try