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Discussion Starter #1 (Edited)
So finally was able to take my 2005 999r for a shakedown run before heading to Ridge motorsports park.

Everything was as I expected. Power that builds nice and linear, good stable handling bike and okay brakes will put on my 19x20 billet brembo master to fix that.

Only thing I find annoying is the taller jerky first gear. I can see the jerkiness being a issue in slower hairpin turns on the track. This bike does not like being ridden slow after 1st gear everything thing is wonderful!

It's got a full termi's on it and 15/39 tooth spockets.

The questions I have are:

1) 1st gear jerkiness, this is common/known issue and what are the fixes.

2) How do I tell if my bike has proper ECU for the full Termi's?

3) Another thing this bike needs a slipper clutch. What has worked well for you 999r guys?


Thanks in advance! Look forward to building a loving relationship with my Ducati. :)
 

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I use one of these .STM Slipper Clutch (EVOLUZIONE SBK) - Clutches - Ducati 749/999 - Dino Corse :: Ducati & MV Agusta Specialist . I find it to be the best slipper I have ever used . No graunching on take off and works perfect , But , You have to keep them right and they eat clutch plates . 48 Tooth so not so cheap either .
I use a variety of different rear sized sprockets the one I like the most, on the road, is actually 43 teeth . Cuts top speed to about 155 mph but dosent half get there quick .
The cheapest way to go is to use a 14 tooth front sprocket , same chain , But I would use a case save if using 14 tooth on a 999R . Rear sprocket change needs a longer chain.
 

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My 05 999R is smooth.
I have a DRIVEN Light Front Sprocket: 14T-520 since I'm running a 520 chain. I'm using one of these to be on the safe side: Ducati Case Saver.

I'm using this map: MW Tuning Remap with a Spark Full System

I use the Surflex Slipper Clutch w/ Plates on it because it has a very easy clutch pull/ low maintanance since my 999R is primarily a street bike.

I like the NGR Adjustable Slipper clutch: Ducati for pure track use because of it solid engagement and adjustability.

The EVR Ducati CTS Slipper Clutch Complete with 48T Plates and Basket and are very good as well--but the 48T plates are expensive and can be hard to find at times.

-M
 

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Discussion Starter #4
Thanks for the replies on the slipper clutches. So it sounds like my 1st gear issues it got to do with tuning then?


Sent from my Motorcycle iPhone app
 

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IMO it's just the nature of the beast sort of....you can always go to a 41T rear sprocket. I had a 38T went to a 41T and that helped quite a bit. Also check your chain adjustment. Should have 30-35mm of play at the chain's mid way mid-point. That can cause jerkiness.
I recall when Mitch Boehm did a track day test of the 999R on one of SPEED's old cycle shows. He and Ralph Sheheen both tested the new 2005 999Rs. They both said it was raucous, snatchy in 1st, but when on gas the engine completely changed....
 

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Thanks for the replies on the slipper clutches. So it sounds like my 1st gear issues it got to do with tuning then?


Sent from my Motorcycle iPhone app
No man, I'm pretty sure everyone is pointing more towards the tall gearing. :think: They are all running a lower ratio thus not as jerky at start. Very common issue with stock geared ducs across the model range they gear them high. Like everyone said, on street the 14t front sprocket is cheap and easy but if your tracking/racing, might look at whole gear set, lower ratio and different chain.
 

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FWIW, the OP's 15/39 set-up results in an even lower final drive gearing than you get by replacing the 999R stock 15/36 with a 14-tooth front sprocket, so I don't think going lower is a solution.

Damaged/worn/loose cush-drive rubber bushings perhaps?
 

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FWIW, the OP's 15/39 set-up results in an even lower final drive gearing than you get by replacing the 999R stock 15/36 with a 14-tooth front sprocket, so I don't think going lower is a solution.

Damaged/worn/loose cush-drive rubber bushings perhaps?
It's hard to diagnose w/o actually riding the thing. It's hard to modulate the clutch on a base 999 let alone an R with it's lighter crank, rods...plus adding a lighter slipper clutch. It could be any number of things...it could just be drive line lash...even a 15/39 ratio results a little snatchiness....mine showed a marked improvement when I went to a 15/41T, even a 42T would be better....unless you ride the thing WFO all time.
IMO a 14T front isn't the way to go. It's a cheap way to get around the expense of buying a new chain to fit a larger rear sprocket, but a 14T can cause too much chain slap umderneath of he swinger.....even w/ a 15T you can push the chain up against the swinger when it's improperly adjusted...
 

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My base 999 does the same thing. Stock gearing, and is very jerky without feathering the throttle for street riding until I shift to second. Then from there on it is perfect.
My '02 748R does exactly the same thing. Feathering the clutch negates the effect. Just purchased the NGR adjustable slipper that Moto referenced from Matt, will report back after I get it installed and get a few rides in with it.
 

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My '02 748R does exactly the same thing. Feathering the clutch negates the effect. Just purchased the NGR adjustable slipper that Moto referenced from Matt, will report back after I get it installed and get a few rides in with it.
Mystic Connecticut what a great place!!! Mystic Pizza!:D
 

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Mystic Connecticut what a great place!!! Mystic Pizza!:D
Thanks Z... we've been here forever and love it. And if you're ever in town again let me know, I'll take you to where the locals go for great pizza... ;)
 

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Defintely...going to visit in Niantic in the early fall, hope to ride my Ducati up....about 4hrs from my place...what a cool little town. We had a blast walking around seeing the sights. More boats than bikes I guess..?:D
 

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Defintely...going to visit in Niantic in the early fall, hope to ride my Ducati up....about 4hrs from my place...what a cool little town. We had a blast walking around seeing the sights. More boats than bikes I guess..?:D
Yep... we race every Wednesday and Sunday in the summer. I am foredeck on the two boats I crew on. Tonight we took third overall, second in our class which tonight was Ensign.

 

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Discussion Starter #15
My base 999 does the same thing. Stock gearing, and is very jerky without feathering the throttle for street riding until I shift to second. Then from there on it is perfect.
Exactly!!

after 1st the bike is perfect! I already have 15/40 sprocket 520 chain conversion ready to go. But wanted to ride the bike as is for the first trackday and get an overall impression of the bike before modding.

Sucks that my race bodywork haven't arrived yet so I'll be running the stock carbon bodywork, DP carbon tank and DP carbon tail that came with the bike.

It's going to be interesting weekend, been away from trackdays for 3yrs (due to having 2 kids during that span) new bike and new track. Something tells me I'm either going to be grining ear to ear or shaking in my boots. :)
 
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