My Toro 6.5hp Tecumseh lawnmower engine starting problem, it shutsoff
as soon as the engine tries to turn on. I thought it could be due to
old gas so replaced the gas, oil. Still it doesnt start.

Every time I prime and pull the starter-cord it tries to start a few
cycle then it stops. Without priming it never even turn.

What could be the problem any easyway to start it, like a special
solution, can I try the gas-deicer? or similar if water is the problem?
This is a new machine I bought 4 years back, only mistake is I left it
outside last winter, in a wraped tarp, under the deck.

Appreciate any help.

S.