HIAORS Rear Brake Master Cylinder with Reservoir for Yerf GX150 150cc 3206 4206 3209 Go Kart Honda ATC-250R Chinese 70cc 90cc 110cc 125cc Dirt Bike Black

Leaked bad. Oring lip had a rough casting. Top had to be sanded .010 down to increase pressure on oring. Back fed line from caliper to master cylinder with syringe. Works fine now after 2 hours of work. Also, get copper sealing washers.

Right out of the box and doesnt work.

Easy to install, great replacement on a Coleman go cart