i ?, and how do i remove the safty that chokes the engine when you tr to go in reverse with the blades running ???? 2nd thing is , well bought it used and the previous owner said that it always had a har start...meaning it sounds like the batterys almost dead and then i kicks over , even when it's hot... but if i remove the sparkplug an turn the key it spins like crazy.. so i wonder if there is some kin of compression problem...PLEASE HELP... !!!!