Master Cylinder Questions

Border Dave · 07-23-2023, 08:49 PM

Hi Everyone. I'm new here, so please forgive me if I ask dumb questions that have already been answered in previous posts. I did a search and couldn't come up with very much that would help me.

My son has a Pitster Pro 125. We took it on some trails and the front master cylinder went out. I think something internally is bad, but I'm not sure. There is a little fluid around the master cylinder and the lever has no resistance. I tried taking out the phillips screws that hold the lid on, but they are so tight that I ended up rounding them out a bit.

A friend suggested that I don't even try to repair it, but instead buy a new master cylinder from one of the Japanese companies. Any opinions on this?

Also, I noticed that the handlebars on the Pitster Pro are not 7/8" like my other bikes. They appear to be 13/16". Are there master cylinders that will fit on these smaller-than-usual handlebars?

TIA

07-23-2023, 08:49 PM	#1
Border Dave Join Date: Jul 2023 Posts: 4	Master Cylinder Questions Hi Everyone. I'm new here, so please forgive me if I ask dumb questions that have already been answered in previous posts. I did a search and couldn't come up with very much that would help me. My son has a Pitster Pro 125. We took it on some trails and the front master cylinder went out. I think something internally is bad, but I'm not sure. There is a little fluid around the master cylinder and the lever has no resistance. I tried taking out the phillips screws that hold the lid on, but they are so tight that I ended up rounding them out a bit. A friend suggested that I don't even try to repair it, but instead buy a new master cylinder from one of the Japanese companies. Any opinions on this? Also, I noticed that the handlebars on the Pitster Pro are not 7/8" like my other bikes. They appear to be 13/16". Are there master cylinders that will fit on these smaller-than-usual handlebars? TIA
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