I bought a non running 2005 predator 500. Owner said it ran last year but wouldn’t fire now. I replaced carb, fuel pump, plug, and started so far. When that didn’t work I checked timing, it was 180 degrees off. So I reset timing, valve clearances were good. Replaced chain tensioner also. Again wouldn’t start. Removed valve cover and timing is 180 off again. What could be causing this? Chain, flywheel? Thanks in advance!

getting great spark, 100 psi compression, and getting fuel. Just won’t fire.

 

Turn crank through 360 degrees and timing will be right again "Homer Simpson" moment?