2 replies to this topic

[andy198712]

Hiya

been a member a while but not had a bike till today

got a '99 txt 270 and loving it its not bad for the age, plently of compression, needs a good jump to kick it over, only issue with it is the brakes

the back was squeeking all the time unless i tapped the lever, and they're both pretty poor in power, i was exspecting quite sharp? more like my ktm.

so i stripped the rear caliper, and removed one piston but couldnt get the other out, and it was only just moving, either way i popped it back on the bike and spent ages bleeding it after a loss in consentraition ment i sucked some air in. finally after cracking the MC banjo a couple times and bled it regular, as i couldnt push the fluid up, worked once but other times it wouldnt go, should i be depressing the lever?
any way, after all that, the feel is ok now, not hard as i'd like, i removed the slack in the lever till i just had a tad........ and its worse then before! i can still move the bike with the brake fully on just about, tried dragging the brake it re bed it as i roughed it up a tad and still the same sadly.

so tomorro i'll strip it down again and try and get that other piston out i guess.....the clean it up and hope for the best!

any tips on this? i know its not the best place to post this but i couldnt do it in the tech section.

Cheers

Andy

[shercoman2k8]

Try splitting the rear caliper so you have access to both pistons, should be either one or two bolts depending on caliper! Put the nozzle of a compressor against the crossover hole for fluid between the two halfs, cover the caliper with a box or something, either that or point it away from you, and away from windows, the neighbours car, your children or the neighbours pesky cat.. I know it may be tempting but c'mon, behave... these fly out with enough force to wound a man at 15 yards! Longest distance I've recorded is 40 yards to the end of the driveway and across the burn.
So yeah, cover it and give the hole a blast with the compressor... maybe leave some wd40 to soak into it to degrade the seals enough to possibly loosen up... Then just get a repair kit for £15 with two new seals and pistons! Much needed on most older bikes, whatta difference! Also, whilst your at it, check the seals at the MC... I fitted a new caliper too my 06 sherco and was still feeling a ****e brake. The seals in the MC had gone whilst bleeding!

Best of luck,
Jamie

[andy198712]

shercoman2k8, on Jun 18 2009, 11:06 PM, said:

Try splitting the rear caliper so you have access to both pistons, should be either one or two bolts depending on caliper! Put the nozzle of a compressor against the crossover hole for fluid between the two halfs, cover the caliper with a box or something, either that or point it away from you, and away from windows, the neighbours car, your children or the neighbours pesky cat.. I know it may be tempting but c'mon, behave... these fly out with enough force to wound a man at 15 yards! Longest distance I've recorded is 40 yards to the end of the driveway and across the burn.
So yeah, cover it and give the hole a blast with the compressor... maybe leave some wd40 to soak into it to degrade the seals enough to possibly loosen up... Then just get a repair kit for £15 with two new seals and pistons! Much needed on most older bikes, whatta difference! Also, whilst your at it, check the seals at the MC... I fitted a new caliper too my 06 sherco and was still feeling a ****e brake. The seals in the MC had gone whilst bleeding!

Best of luck,
Jamie

i did split but could only get the one out, will persist tomorro i think, hopefuly thats the issue, front is pretty poor aswell so will be splitting that, i think new seals all round are in order