GT250 FRONT BRAKE BINDING

For those wanting to keep their bike the way the factory made them.

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Ooozit
Still in the Driveway
Posts: 4
Joined: Mon May 04, 2020 7:51 am
Country: United Kingdom
Suzuki 2-Strokes: GT250L 1974

GT250 FRONT BRAKE BINDING

Post by Ooozit »

Hi,
I'm wondering if anyone else has come across this issue: I have restored, (on a tight budget I must add), a 1974 GT250L and a 1976 GT380A, both US imports. I replaced the front brake master cylinder seals and overhauled the calipers on both bikes. After bleeding, there is no free play in the lever, as soon as I move it, the brake starts to work. I can roll the bikes back and forth in a straight line, but turn the bars and the front brake binds, mainly if I go backwards.
The calipers release after hard lever pulling, so I don't think it's them causing the problem. I'm considering introducing a little air into the master cylinder, but I shouldnt need to bodge it like that.
Can anyone give me a little guidance please.
karl pa
To the on ramp
Posts: 357
Joined: Sat Sep 05, 2015 3:14 pm
Country: us
Suzuki 2-Strokes: GT
Location: southeast pa

Re: GT250 FRONT BRAKE BINDING

Post by karl pa »

Did you make sure the tiny hole in the master cylinder is open? on the bottom of the master cylinder reservoir there are two holes, one larger that allows fluid into the plunger and one that releases pressure from brake line back into reservoir, it is very small and even hard to see, if this one is clogged the brakes wont release properly.
76 GT185
77 GT250
77 GT380
76 GT500
73 GT550
73 GT750
74 GT750
71 T250 scrambler
75 T500 cafe
Ooozit
Still in the Driveway
Posts: 4
Joined: Mon May 04, 2020 7:51 am
Country: United Kingdom
Suzuki 2-Strokes: GT250L 1974

Re: GT250 FRONT BRAKE BINDING

Post by Ooozit »

Thanks for the info Karl. I'll check for that.
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