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Check The Fuel Fitting On The Motor There Are Pins And Balls Which Need To Unlock So Fuel Will Flow ,If You Are Getting Fuel At The Pipe In The Motor Then Probably The Needle Valves In Float Chambers Are Stuck Closed Clean Carbs Try Again
A two-stroke engine idles because a very small hole behind the throttle plate lets a tiny amount of gas through to keep the engine running. At full throttle the air moving through the carburator pulls gas through the venturi vaporizing it. With the motor at idle, if you give the motor full throttle very fast the first charge or two that get into the cylinder are almost completely fresh air with vary little or no gas mixed in. It takes a revolution or two for the motor to pull air through the carburator fast enough to get a fully charged mixture of gas and air into the cylinder so you get full power. This effect is especially pronounced when the motor is cold, the gas doesn't vaporize as well when the motor parts are cold. If you give it throttle slowly or let it warm up the effect should go away.
sounds like the float in the carb needs adjusted.it will happen if it sits for a long period of time,but id get it fixed because the gas dilutes the oil and decreases the viscosity and could harm the engine.or you could turn the gas off at the petcock as i do on my fourwheeler which has the same problem.
go to an auto parts store and get a can of gasoline additive called seafoam. Read the label so you know how much to add to your 6 gallon tank. This stuff works wonders on outboard motors.
my craftsman 16hp rider had same problem, I cut 2 inches off and realigned the gas line from the gas tank to give more of a downward position. Never had a problem since.
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