Clutch Basket Scoring

Got questions? We got answers....

Clutch Basket Scoring

Postby TheGriz » 08:54 pm Jan 14 2015

I was inspecting my clutch today. The clutch doesn't want to fully disengage. Under power the clutch disengages enough not to stall, but with the engine off, it has more than what I'd consider normal drag. I can't kick start in gear with the clutch pulled. I'm not sure if that's normal for a KDX, but I'm used to being able to pull in the clutch and start a bike.

Anyway, I pulled out the clutch today and found some minor grooves on the basket fingers so I filed them down. Hoping this will get me by until I find a new basket. The weirdest thing was the scoring marks on the outside of the basket. They aren't in the direction of the rotation. Was this created by the previous owner to create space between the basket and case or something more sinister?

Image
1987 KDX 80
1991 KDX 200
2005 GasGas EC250
2011 GasGas EC300
2008 KTM 300
User avatar
TheGriz
Supporting Member
 
Posts: 148
Joined: 08:07 pm Nov 14 2014
Has thanked: 1 time
Been thanked: 10 times

Clutch Basket Scoring

Postby gabegambale » 11:30 pm Jan 14 2015

I have the same on mine but my water pump primary was on backwards (previous owner) so if that is not it I would like to know this answer
gabegambale
Supporting Member I
Supporting Member I
 
Posts: 62
Images: 2
Joined: 06:34 am Jul 18 2014
Location: Pennsauken , new jersey usa
Has thanked: 0 time
Been thanked: 0 time

Re: Clutch Basket Scoring

Postby Jason » 03:57 am Jan 15 2015

OUCH

definitely something contacting it, weird
Thank you, Julien D for all your hard work!

PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
User avatar
Jason
KDXRider.net
KDXRider.net
 
Posts: 8452
Images: 12
Joined: 06:45 am Nov 01 2004
Location: AL, USA
Has thanked: 129 times
Been thanked: 340 times

Clutch Basket Scoring

Postby TheGriz » 07:59 am Jan 15 2015

It seems that the only way to make scoring marks like this would be while the clutch basket isn't spinning, right? If the basket was spinning, all of the scoring would be perpendicular to these marks, right?

I guess I should check out the water pump now... ughhh
1987 KDX 80
1991 KDX 200
2005 GasGas EC250
2011 GasGas EC300
2008 KTM 300
User avatar
TheGriz
Supporting Member
 
Posts: 148
Joined: 08:07 pm Nov 14 2014
Has thanked: 1 time
Been thanked: 10 times

Re: Clutch Basket Scoring

Postby KarlP » 08:35 am Jan 15 2015

I think that marking came from the manufacturing of the clutch basket and are not cause for concern.

Isn't the basket geared to the crank and spins all the time? Maybe I got that backwards
'08 KTM200xc
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy
KarlP
Supporting Member III
Supporting Member III
 
Posts: 1484
Images: 6
Joined: 02:26 pm Jun 29 2005
Location: Alabama
Has thanked: 0 time
Been thanked: 7 times

Re: Clutch Basket Scoring

Postby Tedh98 » 09:26 am Jan 15 2015

Yup, the basket is always spinning. And I agree that those were somehow put there during the manufacturing process.

I have seen those marks on several baskets. I just checked a spare basket and it looks similar.

If those marks were caused by something contacting the basket, you would see the AL when you change the oil.
User avatar
Tedh98
Supporting Member II
Supporting Member II
 
Posts: 1576
Joined: 01:08 pm Mar 20 2009
Location: Atlanta, Georgia
Has thanked: 16 times
Been thanked: 60 times

Re: Clutch Basket Scoring

Postby pumpguy » 12:13 pm Jan 15 2015

I would agree. Most probably caused by de-burring the casting in the manufacturing process. Nothing to be concerned about.
pumpguy
Gold Member
Gold Member
 
Posts: 635
Joined: 10:00 am May 29 2012
Location: Spring Grove, Illinois
Has thanked: 36 times
Been thanked: 47 times

Re: Clutch Basket Scoring

Postby TheGriz » 11:44 pm Jan 16 2015

A mechanic told me that a lot of these came from the factory like this. Makes sense since it's a cast piece.
1987 KDX 80
1991 KDX 200
2005 GasGas EC250
2011 GasGas EC300
2008 KTM 300
User avatar
TheGriz
Supporting Member
 
Posts: 148
Joined: 08:07 pm Nov 14 2014
Has thanked: 1 time
Been thanked: 10 times


Return to KDX General Q&A

Who is online

Users browsing this forum: Bing [Bot], Google [Bot] and 4 guests