Will these parts fit a KM 85R Stihl strimmer?

There is not a kit available, but here are the parts you would need: https://www.lsengineers.co.uk/catalog/product/view/id/5400 - Spark Plug https://www.lsengineers.co.uk/catalog/product/view/id/17525 - Air Filter (without hole) https://www.lsengineers.co.uk/catalog/product/view/id/17524 - Pre Filter (without hole) https://www.lsengineers.co.uk/fuel-pick-up-filter-for-stihl-ts410-ts420.html - Fuel Filter If you have got a centre hole in the filter you would need this prefilter and airfilter: https://www.lsengineers.co.uk/catalog/product/view/id/59604 - Air Filter with Hole https://www.lsengineers.co.uk/catalog/product/view/id/59579 - Pre Filter with Hole.