Yes it is adding an additional spring. The way a
lockup works is by allowing the clutch to slip initially
when you release the clutch on the line.This cushions
the driveline hit the tire sees and allows the tire to
hook up without spinning. Now the lockup component
of clutch begins to work there are usually 6 right angled
levers that pivot on pins, one side of the lever applies
pressure to the face of the clutch plate (pressure plate)
the other end of the levers have a drilled hole, weight
(screws,nuts and washers) are added to this end of the
lever. So the faster the clutch spins the more force the
lever applies to the clutch pressure plate (centrifugal force)
This all happens in a fraction of a second and when the
setup is right it's a beautiful thing!
Here's a pic
http://albums.photopoint.com/j/View?u=1173974&a=9224013&p=30009134&Sequence=
0
in this shot there are no weights (screws,etc.) but I think
you can get the general idea .
Does this make sense?
Gary VMOA 614
----- Original Message -----
From: "Phil" <[EMAIL PROTECTED]>
To: "V-MAX TECH LIST" <[EMAIL PROTECTED]>
Sent: Thursday, October 05, 2000 1:14 PM
Subject: Re: Clutch boss ring
> Gary,
> I can wait. Your right John had put a heavy duty spring in the clutch
> and he told me the CBRing wasn't needed. I wasn't sure why.The double d
> mod, isn't that just adding an additional spring ? The barnett clutch
> is a good clutch. I used to use it at the strip for approx 80 passes
> with no problems. Of course that was with a stock motor.
>
> I am interested in the lock up clutch. And i probably don't understand
> it but I am assuming that it essentially doesn't slip.....
>
> Take care Phil
>
> >
> > Phil
> > I've been testing a lockup clutch assembly and hope
> > to have a good setup by Jan./Feb.
> > If you can wait I think we can get those 60 footers
> > down in 1.4 range. Stock fibers are better than Barnett
> > at the dragstrip. Am I correct in assuming that PCW
> > removed that clutch boss ring when they did the 1500
> > motor and installed the Double D clutch spring setup?
> > The Double D is a stiff clutch and is very difficult
> > to launch a bike with, as I'm sure you know. The double
> > D spring will not slip! good for a street bike,
> > bad for a dragbike. There isn't a good reason to reinstall the
> > clutch boss ring. If your clutch is slipping it will show on
> > the steel plates as blue/yellow discoloring usually toward the
> > bottom of the stick up of clutch plates.
> > Do you know how a lock up works?
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