I need help! I recently rebuilt my wr (new rings, timing chain) and ever since I can not get it start not even a putter. I have triple checked all electrical connections, tested all resistance values listed in the manual, timing, valve clearance, compression, I have spark, cleaned/checked carb, only thing I have not tried is a new battery. Anyone have any ideas or experienced the same thing? I'm ready to push this thing off a cliff. Thanks!