Clutch dragging

[Husabergpete]

Funny thing too is that over the years we have noticed all our old euro trials bikes have that really sticky clutch problem. Fantic, Italjet, Bultaco. With them we just lived with it, but not much good on a race starting line.


Let us know the cure.

Pete

[Mike52]

Funny thing too is that over the years we have noticed all our old euro trials bikes have that really sticky clutch problem. Fantic, Italjet, Bultaco. With them we just lived with it, but not much good on a race starting line.
Let us know the cure.
Pete

Had a TY250 that did this too.

[Husabergpete]

So what is the result so far - you gotsa finish the story

[Mike52]

So what is the result so far - you gotsa finish the story

Sorry
Havn,t even had a look.
Been doing the electrics on another one.

[grouty]

I know mine is a tad older at a 1978 390WR, but the last time I rebuilt the clutch (also had dragging problems) I binned the alloy plates and replaced them with steel ones. Problem solved..... for me anyway !

[Mike52]

So what is the result so far - you gotsa finish the story

Ok you shamed me into doing something so I pulled it to bits and


This clutch will never slip cause it,s stuck together real well 

I rekon Grouty has the answer.

I know mine is a tad older at a 1978 390WR, but the last time I rebuilt the clutch (also had dragging problems) I binned the alloy plates and replaced them with steel ones. Problem solved..... for me anyway !

Where did you find the steel plates Grouty ?

[huskibul]

   Mike ive got some (steel) on the way from phillip at "husqvarna parts us" their barnett brand at a very reasonable $12 fibre /$7 steel 

[Mike52]

   Mike ive got some (steel) on the way from phillip at "husqvarna parts us" their barnett brand at a very reasonable $12 fibre /$7 steel 

Yep me too .
Just ordered 3 sets.
Have got too many huskys I rekon.

[grouty]

Sorry Mike, I should have said that I got them from Phillip.

[Mike52]

Ok I have fitted the steel clutch plates and the clutch STILL drags but nowhere as much.
I can now change her up and down through the gears while standing still ( engine running )
Snicked her into 1st today and snuffed the sucker , kicked back and hurt me foot again BUT I could clutch start it this time.
Before anyone says that it,s kicking back because of the timing I,d just like to point out that I,ve carelessly lost most of my right knee in a roady accident and have also cut my right quads in an industrial.
Fact is I kick like a girl and the husky takes advantage. :'(

Bikes hate people and every chance they get they strike.
Don,t believe me ?
Get off on the downhill side of your bike on a big hill and see what happens.

[bigk]

I'm confused. I have a fleet of Husky's with absolute zero clutch drag problems. Have had some slipping problems but never a dragging issue. Nothing special about the clutches other than the usual extended arms and easy pull levers. Dunno.
Cheers,
K

[the stig]

     I had the same problem back in the 70s with a 360wr tried every thing
     but the plates still would not free up untill the motor was wormed up
     then one Saturday i was getting  ready for a ride on Sunday and no
     motor oil only automatic fluid so i put that in the gear box . I never had
     a bit of trouble with clutch all day i think most of the dragging clutch
     problems are caused by the Oils and what Companies put in them.
     There are more Nastyies in oil these days under the name of Molecules
     that stop thing likes clutches working properly
                                       
                                  Poppy

    Jiaw                                           

               
     

[grouty]

Stig may have hit the nail on the head !
It seems to me that the only thing that has changed down through the years is the oil we use !
Could this be the issue here.
Friction material has not changed that much, and alloy or steel plates are the same now as they were decades ago.
The additives in the oil could/may affect the clutch drag/slip. It may be worth trying a different oil. I have been using the same brand in my Husky gearbox for years. But I bet it is slightly differnt now to what it was say 8 years ago.

What oil are you using Mike ?

[Mike52]

What oil are you using Mike ?

Penrite ST30 grouty.
Will give ATF a go next.
We pulled the other one down today ( you can see it in the back of the last picture , has gold forks )
to install the steel plates and had real trouble separating the plates. ( oil in that one is an unknown )
K the problem is obvious if you snick it into any gear and try to push it around the shed.( clutch in )
Just drags the back wheel and won,t break free.

[Expat]

I run two older Huskys including '75 360GP without any clutch issues of any kind.
I ditched the alloy plates and both are now running Barnett clutches with steel plates.
Motul 4 stroke oil in trans changed after every meeting.

However....'74 KX450 with a stock Kawasaki clutch slipped badly with Motul 4 stroke oil.
I flushed the trans and filled with ATF .Clutch has run perfect for a full VMX race season.