You need to check compression, sounds like a meltdown to me. If the piston has melted and seized the rings it won't draw fuel into the cylinder or build enough compression to run. Normal compression is in the 120psi range, if it's much under that you have a problem.
Another possibility is a blown cylinder base gasket.....

 

would this happen out of the blue? there was no sign of any thing going wrong?

 

That's how it goes, they run right up until they die and then it's all over. I been there so it's no surprise, you may be lean on the jetting for cold weather and the cylinder temps rose high enough to melt the piston at the exhaust port seizing the rings so they no longer seal.....

 

am going to borrow a comperssion guage tomorow an get a reading ,i expect you to be right , can i get get a standard size ,or do i have to go up?
this is my first top end job

 

Have you taken both jets the main jet and pilot jet out and made certan that they are clean and clear?If so be sure you are getting gas to the carb.If so be sure the vent lines are hooked up right.If so try it with the gas cap off.
Then check the compression.Most of the time they will give you a notice before the piston and rings go.Like getting hard to start or loosing power.

 

it did have some trouble starting but it had a lot of get up go the power was there ?is there any way of getting a line up of where the vent hoses go? there seems to be
the one on bottom is over flow,
but there are 2/3 on top could use some help as to where they go

 

Tere should be a top vent line and bottom vent line hooked together with a check valve hanging down along with a over flow tube hanging down.If that check is bad it will cause trouble too.

 

re looked at the carb put it back on an nothing, i borrowed a compresion guage hooked it up
an i got ZERO the neddle never moved is that possible?i put my hand over the end of the carb,an felt air pushing out not in an there was gas on my hand. now my question is after i take this apart an remove the jug how can i find out what size piston to put in?

 

Best advice I can give you at this point is to call Rick Ritter (Ritter Cycle Racing) He will take good care of you and get you what you need to get it running again...

 

GOT IT A PART WHAT A PIA!!! YEAH IT CAN BE DONE WITH THE CLUTCHES ON AN THE RINGS FELL APART WHEN I PULLED OFF THE JUG ! NOW HOW DO I FIND OUT WHAT SIZE I NEED AN IF I NEED A BORE JOB?
THANKS FOR ALL HELP