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 Post subject: Auxillary Throttle Return Spring.
Unread postPosted: Fri Jul 21, 2017 2:28 pm 
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Joined: Wed Dec 15, 2010 7:03 pm
Posts: 352
Location: Odenton, MD
Lynn Haddock has asked me to post this:

Recently, all the major modern karting organizations have adopted a new rule that mandates all carbs (except slide valve type) employ an auxiliary throttle return spring. This was done in response to several incidents and injuries. This extra spring is designed to return the shutter to the closed position in the event the primary carb spring fails.

At this stage, the VKA has not taken any official action on this situation, but I thought it would be appropriate to show a few of the available solutions in the interest of safety. Other solutions should be acceptable as long as the solution will close the throttle in the event the primary throttle return spring fails.
Lynn Haddock

The VKA Board felt it was important enough to get the word out BEFORE the next publication of the VKA FirsTurn.© See the attached pre-publication article he submitted for the September VKA FirsTurn

ReturnSPRING.pdf [290.24 KiB]
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Rolf P. Hill- VKA #436
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