Throw us a bone and send us a link to the product. That picture isn't enough information.

 

19.11US $ 45% OFF|Motorcycle Aluminum Engine Protective Cover Guard Skid Plate Skidplate For Suzuki V-strom 650 650xt 2017-2019 Moto Engine Guard - Care - AliExpress

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In the Reviews, people saying the product comes with NO INSTRUCTIONS

 

From the pictures on the site it looks like it utilizes the existing mounting brackets from the stock plastic cowl. Just taking a guess here.
George

 

Ok I agree. The front mounts to the stock OEM plastic mounting plates. The rear appears to be mounted to the frame. Right side to the exhaust bolt, left side to the side stand frame bracket...??

 

You will not find instructions for this skid plate as it is not an engine cover but an exhaust cover. Exactly a Chinese copy of the Moto SRC exhaust muffler guard. https://www.srcmoto.com/products/exhaust-muffler-guard-2017-2019-suzuki-v-strom-650xt I have this cover.

You're looking for this 94.5US $ 30% OFF|For SUZUKI V STROM DL650 DL 650 VSTROM 650XT XT 2017 2020 Motorcycle Engine Protection Cover Chassis Under Guard Skid Plate|Covers & Ornamental Mouldings| - AliExpress or this aliexpress.com/item/1005003388985881.html