I’ve got a new to me 92 Johnson 2cyl 2 stroke (J25TEEND). The previous owner has the kill switch disconnected and uses the tiller handle to kill the motor. At about 1/4-1/2 twist of the tiller is when it seems to idle and if you go below it will stall. Does anyone know what adjustments I can make to have it so where no throttle is idle? Thanks!