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Old May 13th 2017, 07:47 AM   #1
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Dumb Question

....this might be a stupid question but I was not smart enough to test before I started changing things.

I replaced the reservoirs on my 1199 and upgraded to an Oberon clutch slave while I was at it. Filled and bled clutch fluid about 10 reservoirs full.... maybe more. Lever is nice and firm, just as I remember it.... BUT when on the rear stand, with the level pulled in and the putting the bike in first, the rear wheel will spin slowly while still holding the lever in. If I put the bike into second and still keep the clutch lever pulled in then the wheel doesn't rotate anymore. Do I still have a little bit of air in the system?

I used a power bleeder to initially suck the fluid down to the bleeder nipple then I reverted to the manual method of pumping the lever 10 times and slowly cracking the nipple, then closing the bleeder before releasing the lever. I had a nice stream of fluid coming out with no little bubbles, and I repeated the process at the master cylinder until I was happy but it was a little more finicky up top because even after the fluid was coming back nice and solid I would do it once more to make sure and then a big air bubble would come through for about 1" of hose but the lever was so stiff that it didn't make sense that such a large air bubble would be right there. I bled my rear brake using the same method and its nice and tight just as I remember it (who uses it anyways). I will be doing the front brakes this morning. Any insight? Just hydraulic drag in a very low gear?
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Old May 13th 2017, 08:26 AM   #2
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It's normal. Nothing to worry about.
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Old May 13th 2017, 11:50 AM   #3
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I think its from the oil not being warmed up enough and the viscosity is whats causing it to move on its own.

I read that somewhere and it made sense so please forgive me if im completely out to lunch
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Old May 13th 2017, 02:10 PM   #4
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Try the same on a R1
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Old May 13th 2017, 06:23 PM   #5
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It's normal, happen on most of my bikes.

It you put your hand on the rear tire, the wheel will stop spinning.

Sitting on the bike, engine running in neutral, with the clutch pulled in, if you put it into first gear, if the bike stalls, your clutch is not bled properly.

Last edited by ChrisE; May 13th 2017 at 06:27 PM.
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Old May 14th 2017, 01:59 AM   #6
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Originally Posted by K3yra7 View Post
....this might be a stupid question but I was not smart enough to test before I started changing things.

I replaced the reservoirs on my 1199 and upgraded to an Oberon clutch slave while I was at it. Filled and bled clutch fluid about 10 reservoirs full.... maybe more. Lever is nice and firm, just as I remember it.... BUT when on the rear stand, with the level pulled in and the putting the bike in first, the rear wheel will spin slowly while still holding the lever in. If I put the bike into second and still keep the clutch lever pulled in then the wheel doesn't rotate anymore. Do I still have a little bit of air in the system?

I used a power bleeder to initially suck the fluid down to the bleeder nipple then I reverted to the manual method of pumping the lever 10 times and slowly cracking the nipple, then closing the bleeder before releasing the lever. I had a nice stream of fluid coming out with no little bubbles, and I repeated the process at the master cylinder until I was happy but it was a little more finicky up top because even after the fluid was coming back nice and solid I would do it once more to make sure and then a big air bubble would come through for about 1" of hose but the lever was so stiff that it didn't make sense that such a large air bubble would be right there. I bled my rear brake using the same method and its nice and tight just as I remember it (who uses it anyways). I will be doing the front brakes this morning. Any insight? Just hydraulic drag in a very low gear?
Did you remove the rear calliper and spin it upside down to bleed it ?

And if you are seeing air bubbles coming up then something is wrong. Not sure where you are seeing the bubble.
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Old May 14th 2017, 09:48 PM   #7
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Could require some adjustment if you find it 'clunky' when shifting into first from neutral and/or you struggle to find neutral.
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