charliechitlins Posted August 17, 2004 Report Share Posted August 17, 2004 Has anybody put a 4-pot front caliper on a pre-'02 Sherco? Quote Link to comment Share on other sites More sharing options...
alan bechard Posted August 17, 2004 Report Share Posted August 17, 2004 Doug put one on his 01. 99% certain it was a straight bolt up. Quote Link to comment Share on other sites More sharing options...
sherpa Posted August 18, 2004 Report Share Posted August 18, 2004 Yep, put one on my 01. Bolted right on. Plastic rotor guard did'nt fit back on though. Quote Link to comment Share on other sites More sharing options...
charliechitlins Posted August 18, 2004 Author Report Share Posted August 18, 2004 Yeah...I already did it. Took minutes including trimming the guard. What I was curious about, is that the lever feels noticeably spongier than before. I also noticed this the first time I rode a buddy's '02 when it was new. I have also noticed, though, that some bikes with the 4-pot do not feel spongy. I was wondering if this has something to do with the old master that was intended to push 2 pistons. I remember from when I was putting aftermarket calipers on a lot of street bikes that some wouldn't work at all with the stock master. I'm sure I won't even notice after a bit of riding...and it *definitely* stops better, so I'm glad I did it...I'm just lonely and needed to talk Quote Link to comment Share on other sites More sharing options...
beta boy Posted August 18, 2004 Report Share Posted August 18, 2004 my 4 pot on the back of my beta is rubish i use brake cleaner all the time to make it work ok it has been bleed with one of those power bleeders it is not spongie at all it has new pads and no oil has gone on them and ot has had new pistons and a mater cylinder rebulid but it works rubish can some tell me why Quote Link to comment Share on other sites More sharing options...
alan bechard Posted August 18, 2004 Report Share Posted August 18, 2004 (edited) Hmmmm, I would say bleeding. Take off the top, pull the lever in part ways and hold with rubber band, and turn bars to the left. Tap the line a bit and let stand overnight. Or bottom to top with a syringe. Diameters should not theoreticly make it feel spongy. Air will. Beta Boy,,,, I honestly try and be as helpful as possible, but you have to accurately describe the problem for us to take potshots at fixing it. To say "my 4 pot on the back of my beta is rubish" just does not get me anywhere. Does the pedal stroke all the way till it hits the frame? Has it always been this way? Has it ever worked well? When the rear wheel is in the air and you hit it with your hand does it lock the rear wheel? 98% of rear brake problems I see are bleeding. And the rear can be an unbeliveable pain to do. Sit down and try and make some accurate and duplicable assesments of what exactly your brakes are doing or not doing and we will try and help. Then go out and turn on the water hose, or hose pipe or whatever you guys call the thing that your mom uses to water the plants, then drive around dragging the rear brake till it is good and hot, then thouroghly douse it with water. Too hot and it blues which is not good but you should get a good sizzle out of it. The best explanation I have heard is that this is something along the lines of steam cleaning the brakes and is very effective at removing oils and other debris. Seeing how this is the Sherco Forum, I will pass on Alans Observation on Sherco rear brakes. If you change the bolts in the banjo fittings so the bolt off the master cylinder (14mm hex) is now on the caliper (allen head) and vice versa, it makes it much easier to loosen the line on the caliper for bleeding without removing the bolts holding the master to the frame. Edited August 18, 2004 by Alan Bechard Quote Link to comment Share on other sites More sharing options...
beta boy Posted August 18, 2004 Report Share Posted August 18, 2004 took the caliper apart this morning the pistons where seized up a bit so i took it apart and cleaned it all then bleed it and it works really well now thanks for your help Quote Link to comment Share on other sites More sharing options...
charliechitlins Posted August 23, 2004 Author Report Share Posted August 23, 2004 OK...get this. My lever was still a little spongy, but the brake worked fine, and it's such a small thing that I figured I'd just get used to it, because I'm really pleased with the way it grabs now. Anyway...at one point during my last ride, my bike slid down a large rock, landed upside-down and stayed that way for about 30 seconds. When I got myself and the bike upright, I grabbed the front brake because I was on a hill, and the lever was noticeably firmer. And it's been that way since then. Go figure. Quote Link to comment Share on other sites More sharing options...
alan bechard Posted August 23, 2004 Report Share Posted August 23, 2004 I bet that bled it. The shock / vibration / jarring of it, coupled with an odd position, broke that bubble loose and let it get up to the resovoir. My 2 cents. Quote Link to comment Share on other sites More sharing options...
kevin j Posted August 24, 2004 Report Share Posted August 24, 2004 I knew there had to be some advantage to my riding skills. I am just down here bleeding the brakes. Quote Link to comment Share on other sites More sharing options...
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