Hey, I'm a newbe and I've had my 07 exc 450 since '08 and every time the bike has to sit a bit the front brakes are spongy to gone completely? They have always come back after riding a little bit, but I'm not able to have this luck lately? And it makes no since to me why this would work like this? I opened the reservoir, squeezed the lever, opened the bleeder until fluid came out, closed bleeder while fluid was coming out, placed the cover back on the reservoir and still no front brakes? Can anyone tell me what I need to do? Thanks!