So as the titlw says I cant figure out what is wrong with my 2009 rzr. I got it with a bad crank replaced it and put 12-1 je pistons in it while i was in there. Now if it is warm out 60 degrees and above it usually starts right up now if it is cold I have got to fight with it to get started. I try to start it up it starts then dies then when i try to start it again it idles like its on one cylinder then dies i do this about 10 times or till I get the rpms above 2800. and usually everyother time it acts like its going to start the dies and when i try to start it again it has zero compression turns over a million miles an hour. So i let it sit for a minute and try it again has compression and starts right up wtf. It does not burn any oil and runs absolutely perfect once its warm some help please.