Just make the motor unbalanced with a few loose bolts and the seat can do the rest
You want to make it an EVO??? Nope, got it. Aftermarket l*wn tractor seat with an adjustable center support piece like the mechanical lumbar supports in some cars. Twist a lever and it protrudes, being fully adjustable. Even have a name for it...The "ORGASMOWER"....guaranteed to bring a smile to her face. We can get an agricultural model and have Stan sell it.
You want to make it an EVO??? Nope, got it. Aftermarket l*wn tractor seat with an adjustable center support piece like the mechanical lumbar supports in some cars. Twist a lever and it protrudes, being fully adjustable. Even have a name for it...The "ORGASMOWER"....guaranteed to bring a smile to her face. We can get an agricultural model and have Stan sell it.