Not to worry mate, if you find a battery cut of switch rated for 12 volts, its actual voltage stand off rating is way higher then that anyway and certainly also way higher then 6 volts SO A 12 VOLT SWITCH WILL WORK ON A 6 VOLT SYSTEM (subject to that below, i.e., provided it can also handle the current)
NOTE HOWEVER:::::::::::::Its the CURRENT RATING you need to be concerned with. The switch must also be rated to withstand the current the starter draws in cold temperature at a cold start up THATS WHAT REALLY MATTERS. The thing is a 6 volt system can often draw more current then a 12 volt SO BE SURE THE SWITCH (6 or 12 volt) HAS A HIGH ENOUGH CURRENT RATING and remember its true the 6 volt may require a higher current rating.
Some of those cheap switches Ive come across dont have good quality contacts and I fear they will eventually burn and arc and create a carbon build up!!!!!!!!!!!!!!!!!! Due to high current a 6 volt system already has enough potential problems lurking (loose connections, bad grounds, corrosion etc etc) so an inferior cut off switch is one more thing to worry about.
If the electrical system is well maintained there shouldnt be any residual battery bleed paths and no cut off is necessary other then true it can be safer if one is used
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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