[Ducati888]

I've been racing a 2009 F4 for the last year or so, and have not had any success in getting the thing off the line. The clutch is terrible off the start. I changed from a Ducati 998, which was absolutely awesome off the start, most of the time holeshotting if I was on the front row. The MV? Shocking. Race starts don't work. Street starts don't work. It just bites, lets go, clunks and shudders and is basically impossible to get going.

Apparently BMW's and later ZX10s are similarly bad. Someone told me that the addition of a buffer plate in the clutch pack is a possible solution. It's basically two steel plates rivetted together with a rubber buffer between them. They are an off the shelf item for Kawasakis, but I need to know if they are available for the MV.

Anyone know?

Thanks.

 

[wnehme]

Ask the donsy here on the forum. He races the same bike his the be all and end all of these bikes with another man here called noel


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[wnehme]

Noels forum name is theknurl and check for donsy


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Edit post loll opps

 

[mitchy]

You forgot the K, theknurl lol.

 

[Ducati888]

Yes I know Donsy. He hasn't got an answer either. He had some useful advice to drag the clutch on the warm up lap to get it hot, and that works a bit, but its not a long term solution.

 

[Maximum Velocity]

I've been racing a 2009 F4 for the last year or so, and have not had any success in getting the thing off the line. The clutch is terrible off the start. I changed from a Ducati 998, which was absolutely awesome off the start, most of the time holeshotting if I was on the front row. The MV? Shocking. Race starts don't work. Street starts don't work. It just bites, lets go, clunks and shudders and is basically impossible to get going.

Apparently BMW's and later ZX10s are similarly bad. Someone told me that the addition of a buffer plate in the clutch pack is a possible solution. It's basically two steel plates rivetted together with a rubber buffer between them. They are an off the shelf item for Kawasakis, but I need to know if they are available for the MV.

Anyone know?

Thanks.

Well... mine and those two small plates in, but that did not help either. I just installed a different slipperclutch but can't tell you yet if that works better...

 

[Ducati888]

Worst part is the MV and the Ducati have exactly the same clutch plates. Ducati are dry, MV are wet. Ducati clutch is awesome, MV clutch diabolical.

It doesn't make a difference whether it's a slipper or not, because my brother's 2005 F4, which doesn't have a slipper, does exactly the same thing as mine, which does have the factory fitted slipper.

I'm interested to hear about how your new clutch is, Maximum Velocity.

 

[mv2envy]

Any good aftermarket clutch plates around? I always felt like my clutch isn't right.

 

[Ducati888]

I ran KX500 plates in my Ducati. Only because they are cheaper than Ducati ones, and Barnett stuff is rubbish. You have to file the tabs narrower to get them to fit in the basket though.

 

[theknurl]

?

simple;
stiffer springs.....

there's nothing wrong with your clutch

the man with the 221 RWHP Brutale 910R agrees

it runs 198MPH/318KPH in 5th gear! as yet no one has had the balls to try it in 6th :drummer:

he is 23% taller than stock 17X40 and over revving it 1,000RPM:naughty::naughty:

 

[theknurl]

?

Just got off the phone with RC Jr
3 time NHRA National Champion (I built 2 of them)

his 300HP 'Busa ran stock clutch with big springs....no issues

learn to launch......I tried to find a video of Roberto Pietri's 100yd from the 3rd row, hole shot, Daytona '79

he was an MXer too:naughty:

ask an MXer what gear they start in :naughty:

 

[Donsy]

Yeah Noel, you've told us before, but it still doesn't help us solve anything. If we go with stiffer springs, we loose the slipper clutch function. As for aftermarket plates, I can't find any either.

 

[mv2envy]

Ask and ye shall receive Dons. http://m.ebay.com/itm/190726090182?nav=SEARCH

 

[Donsy]

They don't do them for the later F4's anymore Joe, just got email back from Design Corse the other day.

 

[theknurl]

?

Yeah Noel, you've told us before, but it still doesn't help us solve anything. If we go with stiffer springs, we loose the slipper clutch function. As for aftermarket plates, I can't find any either.

then the problem is with the slipper clutch it seems.....its just ramps and balls/rollers....if it doesn't work with stiffer springs, its angle of the ramps VS springs

make sure there is play between the balls/ramps/stops so there is no way they can be lifting the pressure plate accelerating

the only bike I've had with a slipper clutch is my Aprilia RSVR, its pneumatic....totally seamless, fun to play with:naughty:

but it made me sloppy

bought an R1150GS.....oops, the big flywheel will lock the rear diving into corners....not fun

not sloppy anymore.....lesson learned

might just sell the MV slipper I got for my F4

 

[mv2envy]

They don't do them for the later F4's anymore Joe, just got email back from Design Corse the other day.

The same guy lists the clutch plate kit for the 1000R also. Check out his ebay auctions.

 

[Maximum Velocity]

Worst part is the MV and the Ducati have exactly the same clutch plates. Ducati are dry, MV are wet. Ducati clutch is awesome, MV clutch diabolical.

It doesn't make a difference whether it's a slipper or not, because my brother's 2005 F4, which doesn't have a slipper, does exactly the same thing as mine, which does have the factory fitted slipper.

I'm interested to hear about how your new clutch is, Maximum Velocity.

Well... Rode it today and I would say it's better than stock. It works more gradual and smooth. Also downshifting. But please note, I am not a racer, just a streetrider and on occasions I go fast or take off fast. So how it is under the heaviest conditions I can't say, for me the problems I had taking off seem solved. And just as reference because of the 221 rwhp guy :stickpoke above is saying; the springs in this clutch are less stiff but longer...

 

[Maximum Velocity]

In this picture you can actually see the difference in length. Right is original springs left the new ones. Sorry for the bad quality of the pics.

 

[Donsy]

The same guy lists the clutch plate kit for the 1000R also. Check out his ebay auctions.

What they list and what they can supply is two different things Joe, believe me.

In this picture you can actually see the difference in length. Right is original springs left the new ones. Sorry for the bad quality of the pics.

Thanks for that Erick :yo: maybe this could help Rich.

 

[theknurl]

?

Erik;
do you know the pressure of the old and new springs at installed height?

anybody else?