Gasgas

[slack]

Hi guys posted this topic a couple of days ago but i put it in the wrong place,so here goes again.i've just purchesd an 05 300 raga after owning an 05 280,but the cluch on the raga is a lot heavier.My left hand was akeing after the trial on sunday so much so i could hardley keep hold of the bars.After talking to a few people on sunday they said the raga cluch is heavier compared to the 280 is this true or not.I ran the 280 on motul transoil 10/30 & the raga has ATF in it is this the problem or should i try a new cluch. Any help would be appricated. Thanks.

[lowbrow]

The oil you use won't make any difference to the amount of effort required to disengage the clutch. A lighter diaphragm spring was fitted from 2006 and you could go that route, but first off I'd check that the 'pack height' of the clutch discs is within tolerance because if this is wrong it can make the pull heavy. Jon Stoodley is your man on this. Search these forums and/or take a look at www.gasgas.com

[jse]

The oil you use won't make any difference to the amount of effort required to disengage the clutch. A lighter diaphragm spring was fitted from 2006 and you could go that route, but first off I'd check that the 'pack height' of the clutch discs is within tolerance because if this is wrong it can make the pull heavy. Jon Stoodley is your man on this. Search these forums and/or take a look at www.gasgas.com

Hi! I'm on the road right now so didn't get on the laptop last couple of days.

Lowbrow's correct on this. The lower the finger height, the harder the pull due to the decreased mechanical leverage. In some cases, if the fingers are really low, the servo cylinder will bottom out against the shaved head, hollow capscrew that holds the clutch hub on. The lever will pull hard and then stop before it hits the grip (the adjustment screw on the lever, when adjusted in too far will also do this).

The thinner 06' on up Belville spring will have a slightly easier pull if you want to upgrade but I would also flush out the fluid in the system and use DOT-5 Silicone and change the o-ring/seal on the servo cylinder. Sometimes, when the servo o-rings swell they will cause a lot of stiction and cause hard lever pull. This can also happen with master cylinder o-rings sometimes but it's mostly a problem with the servo cylinders. I like the Silicone DOT-5 fluid as it has good lubricity, does not damage the rubber boot on the master cylinder and is slightly compressable so it smooths out clutch engagement (and why it is not used in racing brake systems but is used in military vehicles).

Jon

[lowbrow]

Jon, have you found that a particular 'pack height' within the okay range gives really sweet action? Cheers, Dave

[jse]

Jon, have you found that a particular 'pack height' within the okay range gives really sweet action? Cheers, Dave

As I remember, 17.5mm is standard and has always worked for me. The Pros often want a quicker engagement

and opt for a smaller number, but it's really a personal thing. Most riders seem to be happy with the 17.5mm

height as it gives an easier engagement range for us mere mortals to handle. I also use the GM AutoTrac transfer

case fluid in my personal bike and have about 5+ years of use on the same clutch pack now.

Jon

[lowbrow]

Thanks Jon. I have to agree that GasGas clutches are pretty good these days and I haven't had any problems since the first model Pro came out. After all, it's only for changing gear Dave

[slack]

Thanks for the reply's guys will try some of your advice to see if i can get a nice light clutch.Am of the old school if its not broke leave well alone. Once again thanks to all who replyed.