I have an LT 80 When it's cold and you try to start it it cranks and cranks Then once running it runs fine Not sure what to do any help would be greatly appreciated thank you

 

I'd start with a compression check and a carb cleaning.

 

It's new to me and it just had a new cylinder piston rings installed And I have the old ones so I know was done So maybe just a carburetor cleaning I do not have a compression tester

 

I agree, prolly not a comp issue. Start with the carb.

 

I cleaned the carb and it is still hard to start what should I do next any help

 

Try using 2 fingers in front of the carb to hand choke it.
See if it helps.

 

I will check it ASAP it it starts what is the problem

 

Sometimes that does it.
If it does help but don't fix it, It'd be in the choke circiut. Maybe have to remove the choke plunger and clean/inspect (I'll presume you didn't take it out).
You did remove both jets and clean all the lil holes? Right?
O-ring behind carb is there and in place?

 

LT80 might be on the right track... I have had to clean carbs more than once before to get them clean enough. It's much easier to take it all apart and super clean it once.

Russ

 

Another thing to look at, It seems that that lil o-ring under the main jet are swelling up and blocking the passage. I've had to remove that o-ring.
I think it's the ethanol doing it.