Editing Snowmobile skipping (section)

==Basics==
Snowmobile watercross consists of crossing water while riding a snowmobile, which is possible because snowmobiles have wide tracks for traction and flotation in the snow. If one hits the water at an adequate speed (5&nbsp;mph per 150&nbsp;lb or {{#expr:(5/1.5)*(1.609344/0.45359237)round0}}&nbsp;km/h per 100&nbsp;kg of weight) and keeps the sled's throttle open, the track keeps the snowmobile on the surface of the water without sinking.<ref name="ScienceBuzz">{{cite web |author=Thor |title=Skip the snowmobile skipping: Stay clear of thin, open. Often people will make adjustments to the snowmobile to make it more efficient. ice|url=http://www.sciencebuzz.org/blog/skip_the_snowmobile_skipping_stay_clear_of_thin_open_ice |publisher=Science Buzz/[[National Science Foundation]] |access-date=5 December 2010}}</ref><ref>Archived at [https://ghostarchive.org/varchive/youtube/20211210/iV8CNw-qQjM Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20200426210154/https://www.youtube.com/watch?v=iV8CNw-qQjM Wayback Machine]{{cbignore}}: {{cite AV media| url = https://www.youtube.com/watch?v=iV8CNw-qQjM| title = Swampskimming 1986 - Sandy Lake, Manitoba | website=[[YouTube]]}}{{cbignore}}</ref> If the rider backs out of the throttle or the sled bogs or floods out, the sled will sink.<ref name=MilwaukeeJournalSentinelJuly182009 /> A sunk sled is able to be revived by cleaning water out of the [[carburetor]], exhaust, spark plugs, and replacing the fuel.<ref name=MilwaukeeJournalSentinelJuly182009 /> The front of the sled is pitched upwards as riders commonly do in deep mountain powder snow.<ref name=MaxSled />