front brake master sight glass replacement???

[kochic]

Hi,
Can i change the sight glass on a 1984 GK front brake master?
Thank you,
marc

[Billy Ricks]

Years ago someone had a thread about having done it. IIRC they used a watch crystal. I don't remember the details or how it's held in place though.

[Steve]

I have used a piece of Lexan or acrylic for the repair. Go to Lowe's or Home Depot, ask for a small piece that has broken off in their cutting area 1/8" thick works best). Cut it to the approximate size, then file or sand it down to final shape and size. You actually want it just a bit smaller than the hole. Mix up some 5-minute epoxy, lay a bead around the ledge on the hole, set the new crystal in place, fill in around the edge to assure a good seal (this is why you want it a bit smaller). Even though it's "5-minute" epoxy, allow it to cure overnight, then put it back on the bike and fill it up.

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[SqDancerLynn1]

I have on on my 850. I just filled the hole with JB weld squeezed it together with a C clamp to get a good fill on the hole

[kochic]

thank you for the reply, i will try to change mine this weekend.
marc