Hello all. I was looking at the other post for a no start and had a quastion on the Cam timing. I recently picked up a 2000 426 that needed work. It has a new Wiseco 13.5:1 piston new valves and timing chain and new Hot cams with auto decompression.. When trying to start it after around a dozen or so kicks it will backfire from the exhaust one time then nothing. If I let it sit for 5-10 minutes it will backfire again after 4 or 5 kicks.I thought it was an ignition problem so I started swaping parts with my 2001 that runs perfect. Swapped 1 part at a time to the 2001 and it starts and runs with everything electrical, Coil with wire and boot, CDI, Magneto and flywheel, harness. Disconnected the blue wire to the neutral switch(Blue wire Mod) Also swapped the carb and the 2001 still starts and runs. The 2000 has the same symptom after all parts swapped. I rechecked the cam timing and it looks good. Compared the timing marks with the 2001 that has the hot cams also. They look a bit different but the 2001 has been together for a while so figured the chain could have some stretch to it. I rebuilt the 2001 when i got it a few years ago with no problems and put the 2000 together the same way. Ill post some pics of the cam timing so anyone can see if it looks good. The pic with blue dots on the intake is the 2000 that will not start and backfires. The pic with the shiney marks on the intake cam is the 2001 that runs fine. Thats how the cams were marked when I got them. Thanks for any help.