My shovel came with a set of Thunder Heart forward controls on it and a little while ago they started leaking from the plunger.
I was told by the Thunder Heart rep that a Kelsey Hayes rebuild kit would fix it so I ordered it, rebuilt them and within 40 or so miles it started leaking again. Apparently they don't make this particular master cylinder anymore so I'm kind of stuck.
Either I need to order a new set of controls, or try to retrofit a different master cylinder to the bike. I want to get back on the road as soon as possible seeing as how the weather is finally getting nice around here.
Anyone have any suggestions?

 

Looks like an actual Kelsey Hayes master cylinder would bolt right up...the bolts would not be hidden and the brake line would be on front...no big deal.

 

take it back apart and check your re-work. Clean all the parts with alcohol and blow dry before re-assembling. You should be able to find the little piece if rubbish causing the leak. You might need to polish the internals; use 400-800 grit crocus cloth, then the alcohol to rinse it.

 

Or a cleaning kit for a Shotgun...I think I used 20 Gauge...Spin the Brush then the Jag, with a Power screwdriver...