HELP! I left my backpack blower (stihl br420c) out in all the Fay rain in the back of my truck with the muffler hole up. I drained all the water i can out pulled the plug and left it out for a couple of days with piston up and down to expose ports. Ive changed plug and it wont start. Im getting a blue white spark. I put ether in cylinder and it still wont light. Poured a little gas in cylinder wont light. Dont even get a puff of smoke. Thanx for any advice