Hello everyone first time posting not sure if this is the right place but here goes.Have just purchased an old hayter osprey and hayterette with the osprey my main project they were both bought as non runners but once home I put some fuel in the osprey and two pulls later off she went and proceeded to cut half acre of very long grass with ease but once hot cut out.Have tried a few times more and she starts from cold but soon as hot cuts out and will not start again until cold,any help greatly appreciated.It is a 7hp briggs & stratton not sure how old but has number on chassis 12821 many thanks,Rod.