Had my spark out, and after a flipping it over backwards a few times it started hard then died then started then died then wouldnt start. While cranking it sounded odd out the exhaust. engine had spark and fuel, but zero compression on all three cylinders. Long story short there is a plastic cap on the end of the exhaust camshaft gear that is a shield to keep oil out of the pcv passage that runs through the middle of the camshaft and it fell off wedged up in the timing chain, pushed against the tensioner let the chain get loose and the intake cam jumped 4 cogs. i timed the cams and vroom she started up and sounds good.