Have fuel starts dies then won`t fire leave for a
if it has not been serviced,remove any fuel that is in tank,remove the tank and remove gas shut off and clean the screen,remove spark plug and do compression check on each cylinder,remove carbs and clean/rebuild(carb kit),replace the float needle valve assembly.it will be a little pricey but its worth it,sounds like fuel restriction to carbs,thats why I suggest at least fuel tank shut off screen clean,if you want to just drain carb float bowls of fuel to make sure that there is no water in them first before any disassembly try that,its possible the may be the problem.I have done carb clean with a dynajet kit with K&N filter and an aftermarket performence exhaust,carb synch,and fuel mix adjust ran like champ,but did not check fuel tank,it had water in gas tank,had to drain tank,fuel lines,fuel pump,and carbs again.ran fine after that,hope that helps or at least points you in right direction.