Westwood Ride On Mower

Here i have my westwood ride on mower in need of a little tlc but works as it should its an old model and has a briggs and stratton engine . its been sitting in my garage for a few years but i got it out a few months ago put some petrol in it and got it going so cut my grass with it the battery has never been any good and not sure about starter motor but it has a pull start on engine so i used that . it runs a bit lumpy but does the job. pick up only and cash on collection. im not sure what model this is so listed as w11