1985-1986 Honda ATC250R Shop Manual, Page 197Get this manual
HYDRAULIC DISC BRAKES
BRAKE FLUID FILLINGBLEEDING
Fill the reservoir with DOT-3 or brake fluid from sealed container
Connect the commercially available brake bleeder to the bleed valvePump the brake bleeder and loosen the bleed valveAdd fluid when the fluid level in the master cylinder reservoir is lowNOTES Check the fluid level often while bleeding the brakes to prevent ir from being pumped into the system When using brake bleeding tool, follow the manufacturer's operating instructions