Well, a new to me issue.
Last weekend I pushed the GRiSO and Scura out of the shop for a much needed washing.
When grabbing the front brake on the GRiSO the lever went nearly to the grip and was very mushy.
Last service was back in September before the Kentucky Rally. Brakes, front and rear, and clutch.
No issues what so ever on the four day trip.
Being a late afternoon project, the washing, I decide to circle back to it on my next weekend off.
So, weekend comes around.
Step one: General Visual Inspection.
No leaking or obvious damage. Lever still mush.
Step two: Bleed the brakes.
What a surprise. Right caliper was producing a few bubbles. Hmmm . . . ?
More surprising. Left caliper was producing LOTS of bubbles. Shocked !?!
Step three: Tap, tap, tap with a dead blow mallet, to get the last few bubbles to rise, and continue bleeding.
More tiny bubbles, then nothing but clean fresh fluid on both sides.
Lever is firm. Test ride confirms front brakes are good.
Take the wife's advise. It's a nice sunny day, go for a ride.
Totaled a tick over two-hundred miles tear assing around Southern Indiana, zero problems.
Bike is awesome. My faith is renewed.
WTF and how did air get into the system? No clue on my part.
The plastic over braid on the brake lines is chipping and cracking. That's more of a cosmetic issue and wouldn't allow air into the system. If it was fluid would be coming out as well. I'll head over to Earl's Performance Plumbing on Gasoline Alley to have a new set made up in a few weeks.
Any ideas? Anyone?[You must be registered and logged in to see this image.]
They do clean up nicely.