wells here is the story I was coming out of a turn to a little straight away when I got close the the next turn my front breaks went out push in the handle twice. nothing. so I dodge a big tree but ended up into a smaller tree banging my knee into it. I'm going to be laid up for a while. my left nerf bar is bent in bad. and my
steering handle mount is bent bad but my stearing stem is still straight. I would of been saved if you could down shift to slow down. but oh wells guess it happens

 

Sure sorry to hear about your crash, CdalePaul. Have you figured out what happened to your brakes?
Hope you heal quick and fix that quad.

 

Check the banjo bolts at the caliper probably the left one as you are sitting on quad.It probably loosened up.
Seems like if you ride in brush or deep loam like in a berm it will spin the banjo fitting.I wish there was some kind of groove for it to go in.

 

I didn't notice any fluid leaking and where is the banjo bolt?? I will check it out when i'm able to walk again.. But I think it had to do with me have a limb get stuck between my a-arms and against the caliper it happened right before the breaks went out....hummmm

 

Mine went out once for no apparent reason, luckily I didn't hit anything. Squeezed the handle a few times and they pumped back up. Never found a problem, and never had any problems after that one incedent. I'm assuming there was an air buble in the line somewhere and it worked it's way up to the master cylinder and out of the system.

 

If you haven't done it yet, reroute your brake lines so they are behind the arms instead of in front of the them. I did this to mine to keep from hitting something and pushing them backwards causing the nut to loosen and lose fliud and brakes.

 

that's what i was thinking that it had some air in the system but the only thing that made me discount it was that i've got about 75 hours on it with no break problems, that rerouteing of the break lines is a good idea.

 

Rerouting sounds like a good idea.Do you point the line straight back at the caliper?
It250r thanks simple solutions are always the best.

 

CDalepaul- I think you have the answer to the cause. I had the same thing happen to me and Ryanstones had it happen to him on his Yamahahaha(back in the day,LOL!). It makes the most sense that the caliper was pushed in by something(causing the piston to push into the caliper) while you were riding(I know I had something wrap up in my wheel just before losing brakes, too), then when you squeezed the brake it took a pull or two to get it tight to the rotor again. I discount the air bubble a little because you would have still had some brakes, just not real strong like usual- a little mushy feeling. It would have to have been a huge air bubble to cause no brakes and it wouldn't have pushed out of the line when you squeezed the lever.
That cable reroute sounds like a good idea. I'll have to check into it when I get a chance.

 

What I did was turn all the clamp that bolt on the a-arms around so they were facing the opposite way and then ran the line behind the a-arm. I think the line is pointing forward now. I’ll try to get some pics tonight when I get home from work.