Hello all, I know this another post about bleeding problems but I can't figure this thing out on my own apparently. I've read almost all of the other responses and I've learned a lot of useful information, yet I still have no brakes and have only become more agitated with the situation. To start off I have considerable knowledge on this issue with cars and motorcycles but never with atv and I'm sure I'm being impatient with it. I'll begin with a brief background of the problem: I have a 96 fourtrax 300 4x4, front brakes worked fine for the longest but in the last year the handle began loosing it's bite. I started at the bottom, adjusting the shoes and checking for leaks at the cylinders, banjo bolts and just about anywhere else fluid could leak....no leaks...shoes adjusted correctly but still no pressure at the handle...I finally ordered a rebuild kit and installed it....I'm pretty confident it's correctly assembled I mean there are only 5 parts anyway....tried to bleed the normal way just by squeezing the handle to build pressure and quickly loosening the bleeder screw......no help.....I went and got the vacuum bleeder and ran a quart throughout the system..... No leaks. All fluid is clean and flows through with no problems but still not even a slight bit of pressure at the handle.....I was browsing through the forum and stumbled upon the vise grip trick to buil pressure close to the mc.....when I do it on my wheeler no pressure build up at all, but when I walk over to my girlfriends wheeler which is the same model but a 97, hers becomes rock hard (makes sense cause her front brakes still work but are also beginning to fade) so I'm left thinking that either the kit is defective or the mc is messed up on the inside where the other rubber component is, that has the little x opening....basically I want to know is this a sign that the mc is useless or is there something else that I can try to get these brakes going....sorry about the novel....thanks in advance Andrew K
Akhonda4x4
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The banjo bolt it the bolt that holds the line to the master. the inside edge of the banjo has a groove in it so no matter where the hole in the bolt it there will always be fluid. make sure the bolt is clear of obstructions.
In the bottom of the M/C is a round rubber flap, remove it and make sure that the smallest of the two holes is clean (as Shadetree stated)
How I bleed my brakes. . .
I fill the M/C to the brim no lid on I make sure I can loosen the bleeders at the wheels without touching the lever loosen the bleeder on the LF first now SLOWLY squeeze the lever until it has bottomed out against the handlebar hold it there and tighten the bleeder. SLOWLY release it, loosen the bleeder again and repeat the above step do this until there is a steady stream of fluid. Once you do get a steady stream move the the RF and do the same thing. Make sure you keep the resovior full. After you have completed this pump the lever 8-10 good times and hold it on the last pump and loosen the LF bleeder this will force fluid through the line to clear out any air. I usually do this about 2 or 3 times to each wheel.
If you do this and still have no pressure then either you installed the kit wrong , the shoes aren't adjusted properly or you have a bad wheel cylinder. You also could have a line that is collapsing internally.
In the bottom of the M/C is a round rubber flap, remove it and make sure that the smallest of the two holes is clean (as Shadetree stated)
How I bleed my brakes. . .
I fill the M/C to the brim no lid on I make sure I can loosen the bleeders at the wheels without touching the lever loosen the bleeder on the LF first now SLOWLY squeeze the lever until it has bottomed out against the handlebar hold it there and tighten the bleeder. SLOWLY release it, loosen the bleeder again and repeat the above step do this until there is a steady stream of fluid. Once you do get a steady stream move the the RF and do the same thing. Make sure you keep the resovior full. After you have completed this pump the lever 8-10 good times and hold it on the last pump and loosen the LF bleeder this will force fluid through the line to clear out any air. I usually do this about 2 or 3 times to each wheel.
If you do this and still have no pressure then either you installed the kit wrong , the shoes aren't adjusted properly or you have a bad wheel cylinder. You also could have a line that is collapsing internally.
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