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So my atv sat in the garage all winter long and I never drove it. Got on it the other day and the front brakes are real soft now and barely work. I can pull the brake lever pretty much to the bars before I get anything out of them. When I parked it last everything worked fine. Why would they become spongy after sitting all winter?
 

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might have a leak and your down on fluid or maybe the fluid has absorbed moisture. Check your reservoir level.
 

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After my Outty sits for 2 weeks, the brake lever goes to the bar until they get pumped up. I better check it out.
 

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Old brake fluid is junk .
I change mine every 2/3 years on the bikes & sled & around 5 years in the vehicles .
 

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Old brake fluid is junk .
I change mine every 2/3 years on the bikes & sled & around 5 years in the vehicles .
Haven't done this on the bike. Is it as simple as opening up one bleeder at a time, pumping, and filling?
 

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Just had the same problem on my quad. I had to bleed the brakes and found a lot of air in the front brakes and moisture in the rear brake reservoir. Not sure how the air got in there as I cant find any leaks. Maybe last time when I cleaned the front calipers out because I did use some air to blow the dirt out. New fluid seemed to help my problem. The brakes are working good now but I haven't had a chance to put some miles on yet.
 
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