Dumbfounded

Okay, what am I missing.  Can't seem to get the flywheel back into the stater coils housing.  Is there a trick to it?

I was able to talk with service tech. They don't sell parts to consumers but gave me the part numbers for the cam sprocket with gears then ordered the chain and sprocket assembly for under $60. 

Yes, I downloaded it via internet purchase. 

Surprisingly found this on Amazon but not sure to trust parts from there. Contacted Hisun service in McKinney Texas but yet to get a reply..

Ok, sad news is I removed head and it turn out it is one complete sealed unit. Found one on line for $400. Tried turning the cam to see if valves open and close but to no avail. 1/4 turn on cam phaser in each direction but not any further. 

Plan on replacing both chains (other being the oil pump) cam lock phaser and tensioner. But first have to remove valve cover to check for any further damage.  Hoping valve's are not damaged. 

Ok, took a pic behind sprocket and appears that chain jumped off gear sprocket. 

Yes, it's nipped. Ran my finger on it and feels sharp as if forced out. Can't seem to pull inner part of sprocket out of harmonic shaft to reveal chain sprocket. . See pic.

Also as cam picture shows, the left cam lock appears not to be in phase with the right one.

Ok guys, opened up cam window and removed timing chain cover. Looks like the chain is free spinning behind the flywheel as when I give harmonic balancer one revolution chain rains in place and is overly loose. Have to buy a 3 prong pulley to remove sprocket as flywheel and magneto has been removed.  Wondering if chain sprocket behind water pump drive sprocket broke? Any thoughts or suggestions? 

Thanks, will have to sit in shop till I find the time. Never abused it. Mainly used for cruising the community. 

Ok, going to test sensor first hopefully that is the problem.  If not I have a feeling the pop I heard may have been the sheer pin as described in link I just posted. I'd hate to go that far though. Gonna have to take her to my workshop for that.

Also I did remove fuel line at throttle body and plenty of fuel there when ignition is turned on. Sprayed starter fluid into intake and no start, not even a glimpse of want to ignite 

I agree the possibility of crank position sensor or even more so chain jump skipped a tooth setting it off time.  Will try cheaper route first with the CPS.

Appreciate feedback.  As far as warranty  that expired. Original owner put 150 hr but hardly ever used it in the 3 years he had it. 50 of those hours were due to leaving ignition at the on position till battery died. I ve had it just over a year and use it primarily on weekends.  Still all original except oil and filter.  Seriously hoping it's not the timing.  Very difficult to pull cam off in such a tight fit area. Will try to find OBD hook up if it has one. 

It's a 1 cylinder 2 valve engine. If timing chain jumped how can I diagnose the problem? Never popped before and pop was not loud. 

No codes, no flashing on dash.  Trying to figure out what sensors it has and would pop before dying. Was cruising about 15 mph steadily when it all happened. 

I have similar problem only mine died while in use. I heard a slight pop right before it died. Then it would not start. 1st I checked was oil level and it was a bit higher than normal.  Removed spark plug boot placed test light in between and good. Removed plug and tested compression and had real good number considering it has less than 300 hrs. Listened for evi pressurizing and sounds good.  Added fuel since it was 1/3 on gauge and turned to on and off position 3 times then cranked but same issue.  What could have caused this and what to do next?