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The Beta Clutch Fix

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  • You bet!

  • markparrish
    markparrish

    Having only recently embarked on my trials experience I have been so pleased to have found the great advice and support on this forum. I thought you might be interested to see my clutch mod based on s

  • dan williams
    dan williams

    Your oil is roughly the same as 15wt motor oil according to the charts I can find so nothing odd there. It sounds to me as if your clutch is operating properly but you could try adjusting the set scre

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  • Author

Hi Copemech,

Might take longer then I thought measuring springs. Hit a pot hole Monday and truck is in shop with exploded front end. Lucky I was doing 25 and not 65. Looked under to see bottom A arm laying on ground.

Hi Copemech,

Might take longer then I thought measuring springs. Hit a pot hole Monday and truck is in shop with exploded front end. Lucky I was doing 25 and not 65. Looked under to see bottom A arm laying on ground.

Hehe! :chairfall:

Hi All

My first post :-) so BIG hello...

I have just carried out the clutch fix on my Beta Evo 250cc/2010 it really does make the clutch lighter to use !

Many Thanks for some great advice....

All the best.

Cheers

just been out on me bike after doing the clutch fix its perfect now starts in gear nice and smooth really pleased thanks

  • 1 month later...

Hey all, I completed the clutch mod and love the results, with one exception. I find there is a lot more clutch plate chatter. Have others who have done this mod found this to be true or did I miss something in the mod instructions?

  • Author

There is more chatter. Don't worry about it. After a few weeks you won't even notice. It will also diminish a bit as the plates wear into their new configuration.

You da man Dan. I also switched to synthetic ATF, which I never used before, maybe that is part of the chatter issue as well.

  • 1 month later...

For the easier clutch do you take out the 2 springs and the bolts, or remove the springs and put the bolts back in.

And without trying to sound really thick does it matter which springs.

Holy crap!

This mod really works! Let me say I didn't have so much believe in would fix my problem which actually is clutch slipping in 5th and 6th which is stated to be pretty "normal" for the Beta's (I have a rev3 270). The job was PITA and took me a couple of evenings, but it was all worth it. Clutch is both feelier and as I said, no more slipping. Thanks! I can't say I noticed any significant increase in the chatter either, but I am not so experienced. The bike vibrates and make so much chatter already so it can't get any worse I guess ;-)

  • Author

olec: Oh ye of little faith.

scorpion: Yeah I just take the two bolts out. Why leave in something that can get loose and cause bad things to happen?

I ride a 2008 4t would this mod benefit me, clutch sticks from cold but i have already removed 2 springs so it's nice and light ^_^

I ride a 2008 4t would this mod benefit me, clutch sticks from cold but i have already removed 2 springs so it's nice and light ^_^

Tut,Tut..Mr. Crash,

Are you aware that the 4RT owners club has strict rules when it comes to tweaking your Montesa?

You are expected to throw a lot of wonga

Hi All.

I got some clutch slip yesterday up some long big hills. I guess the 4 spring idea was a little hopeful. I have gone back to 6 springs and will test today.

  • Author

From what was said earlier about the 4T clutch pull it's entirely possible it uses lighter clutch springs anyway.

Hmmm according to the engine manuals for the 08 2T and 4T same part number (13.5kg spring) EDIT I think this should be 13.5 N/mm]

Could be affected by fluid type or the adjustment bring a bit too tight or it could really just be slipping.

Edited by dan williams

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