Clutch Drags - MVAgusta.net
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post #1 of 14 (permalink) Old 06-19-2013, 09:41 PM Thread Starter
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Clutch Drags

Hey Guys!

My 2004 F4 has a clutch that drags when I have the clutch lever pulled all the way in and in first gear. If I let the brake lever go, the bike will lurch and keep going if I let it. Here's what I have checked so far:

1. New clutch fluid and bled properly, no air bubbles.
2. Clutch lever adjustment is set to furthest point out.

The bike had been tipped over at a standstill and that did bend the clutch lever slightly. I have been able to bend the clutch lever back by applying heat and pressure to it so its back to normal now.

I am wondering what else I should check? Thanks in advance, I have tried the search function but did not come up with much help there.

-John
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post #2 of 14 (permalink) Old 06-19-2013, 10:41 PM
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Wink creeping?

John;
either it isn't bled or the M/C piston isn't returning all the way because of the damage

it's just not pushing the slave far enough

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post #3 of 14 (permalink) Old 06-20-2013, 12:22 AM Thread Starter
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Quote:
Originally Posted by theknurl View Post
John;
either it isn't bled or the M/C piston isn't returning all the way because of the damage

it's just not pushing the slave far enough
Noel,

Thanks for the help.

I am pretty certain that I bled it correctly.

Is there any physical way to check to M/C piston? or do I just have to replace it to see if it corrects the issue?
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post #4 of 14 (permalink) Old 06-20-2013, 01:41 AM
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Quote:
Originally Posted by outtadaloop View Post
Noel,

Thanks for the help.

I am pretty certain that I bled it correctly.

Is there any physical way to check to M/C piston? or do I just have to replace it to see if it corrects the issue?
no, you need to remove the M/C and clamp it to a 7/8" bar
then remove the reservoir cover and point the M/C downhill.....you want the return port at the high point....
then if you slowly squeeze the lever 5-10mm the M/C piston will bleed itself through the return port

NB;
you may have bent the lever on the other side of the fulcrum.....i haven't looked at the possibilities

i think i still have a short clutch lever i'll look tomorrow, you're welcome to try it......but i'd bleed it my way 1st

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post #5 of 14 (permalink) Old 06-20-2013, 12:05 PM Thread Starter
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Quote:
Originally Posted by theknurl View Post
no, you need to remove the M/C and clamp it to a 7/8" bar
then remove the reservoir cover and point the M/C downhill.....you want the return port at the high point....
then if you slowly squeeze the lever 5-10mm the M/C piston will bleed itself through the return port

NB;
you may have bent the lever on the other side of the fulcrum.....i haven't looked at the possibilities

i think i still have a short clutch lever i'll look tomorrow, you're welcome to try it......but i'd bleed it my way 1st
Noel,

Ok I'll try bleeding it that way first. I looked at the workshop manual and I think your method is similar?

Thanks!
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post #6 of 14 (permalink) Old 06-20-2013, 12:32 PM
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Stock lever? (my CRG at full click, 6, and pulled all the way in doesn't totally engage the clutch). My factory lever does just fine.
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post #7 of 14 (permalink) Old 06-20-2013, 09:10 PM Thread Starter
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I opened my oil filler cap today and squeezed the clutch lever while looking inside, I can see the clutch pressure plate moving in and out as I squeeze and release. So maybe the clutch slave is engaging and disengaging and my problem lies somewhere in the clutch plates?

Last edited by outtadaloop; 06-20-2013 at 09:16 PM.
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post #8 of 14 (permalink) Old 06-21-2013, 09:37 PM
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I have had the same issue with my bike, changed oil to amsoil and problem seems to have gone...just saying
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post #9 of 14 (permalink) Old 06-22-2013, 12:52 AM Thread Starter
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I have had the same issue with my bike, changed oil to amsoil and problem seems to have gone...just saying
Oil was recently changed to Amsoil...still have the issue
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post #10 of 14 (permalink) Old 06-22-2013, 04:26 PM
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Wink ?

outside chance;
too much play in clutch hub, hub nut loose....its happened

you can see the pressure plate move, but the clutch pack moves with it

not allowing a full release

Noel-theknurl

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