This model is a 99% match to the kill switch delivered with my Yamaha SVHO Cruiser seen in the picture. 

This model works for Yamaha jetski's but also most outboards using the same type of kill switch.

With this model you can print addition ones, so you can have one attached to each life vest, and also have a spare in the jetski or boat.

I have printed it in red Bambu PETG Basic filament.

The model has been tested on my own jetski and it works. You can add 6mm floating nylon rope to the switch.

[https://www.amazon.de/-/da/NewDoar-reflekterende-fort%C3%B8jningsreb-docklinned-fort%C3%B8jnings-orange/dp/B0FCLKJGJ7/ref=pd_ci_mcx_mh_mcx_views_0_image?pd_rd_w=gUMfw&content-id=amzn1.sym.bbac26bb-3f7b-44dd-a8a5-c10fcfb1ed60%3Aamzn1.symc.30e3dbb4-8dd8-4bad-b7a1-a45bcdbc49b8&pf_rd_p=bbac26bb-3f7b-44dd-a8a5-c10fcfb1ed60&pf_rd_r=T2DN99RE94YDRYVZD25Q&pd_rd_wg=1g6M9&pd_rd_r=7541116a-5d81-4930-a04e-2da6184aa36e&pd_rd_i=B0FCLKJGJ7&th=1](https://www.amazon.de/-/da/NewDoar-reflekterende-fort%C3%B8jningsreb-docklinned-fort%C3%B8jnings-orange/dp/B0FCLKJGJ7/ref=pd_ci_mcx_mh_mcx_views_0_image?pd_rd_w=gUMfw&content-id=amzn1.sym.bbac26bb-3f7b-44dd-a8a5-c10fcfb1ed60%3Aamzn1.symc.30e3dbb4-8dd8-4bad-b7a1-a45bcdbc49b8&pf_rd_p=bbac26bb-3f7b-44dd-a8a5-c10fcfb1ed60&pf_rd_r=T2DN99RE94YDRYVZD25Q&pd_rd_wg=1g6M9&pd_rd_r=7541116a-5d81-4930-a04e-2da6184aa36e&pd_rd_i=B0FCLKJGJ7&th=1)