noob 748R Q\'s
 

Guys, excuse the beginner questions but after a few miles on the 748R I feel I must ask thee:

1. I have an STM slipper clutch, newish, and it is impossible to pull away with any degree of finesse and a quick or hill start is radically embarrassing :burn: Mega snatchy, slip and grab even at slow speed on the flat. I assume from reading that this is normal but thought I'd check with the experts.

2. It's impossible to go slow (as if I'd want to) but seriously, 30 mph is a challenge and below that is a skill I have yet to develop (makes for a heroic display in town traffic, and a noisy one too). Below 4000rpm she is not happy. I understand it's the nature of the beast but having no previous experience I wanted to make sure I wasn't riding around enjoying, in my ignorance, some kind of problem.

Thanks all.

Nate

Clutches seem to get better when there warmer.
Give Pro Twins in Godstone a ring and get an ultimap chip, they make one for the 748R, I can recomend them. :cool: :cool: :cool:

Mines exactly the same and mine doesn't have a slipper clutch.

Apparently the slipping can be caused by a build up of dust from the dry clutch, if you've got a sealed clutch cover then it may be worth cleaning it out. (I need to do the same with mine)

Hillstarts can be tricky as too much gas and you'll either wheelie or the clutch will slip and you'll buckaroo up the road a few times, too little gas and it will stall. I've found it best to just be progressive with the clutch as you apply the throttle, start with low revs and increase while slipping the clutch out.

These bikes aren't town bikes by any stretch of the imagination, they are a riders bike and so prefer to be on the track or the open road. Below 4000 as you say it clatters and rattles and isn't happy.

If you're trundling through town just work the gearbox a bit more and keep it revving to 4k+.

If its a wet day in town I'd personally give it a miss.

I also have an R and yep,you've described it better than i could.I once in a while drag race mine and the clutch action is callenging to say the least,i've now junked the slipper and put one in from a 748 S .The clutch plate wear is also interesting ( 3.000 miles ),which should also improve.The horrible (fluffy)low throttle and R.P.M responce is kind of normal too.Dont forget that they are basically ever so slightly detuned race bikes.If you fit a F.I.M chip instead of the usual,the whole fueling can be adjusted by a "plug in and play"on the rolling road.They really are pleasure and pain in one package but put 50mm Termis on and the noise is ,well frankly expensive,boom and bite at the same time.:cool:

My clutch has been crap from day1................. but its perfectly ok for a Ducati, trouble is I`m so used to a nice big oil cluctch on the Lav`

It's worthwhile doing a search on here. There have been a number of 748R clutch and throttle control posts. As far as I remember the 748R came standard with a slipper clutch.

Hi Nate, at the end of the day, the whole point of the dry clutch is that it grabs hard, that's what they do! The only way to pull away smoothly on the R IMO is to dial in about 8K and dump the clutch, it all works just like it should do then :lol:
Obviously not the done thing outside Woolys but there you go ;)
The low speed nastiness is the price you pay for all that lovely top end I'm afraid, even with the slightly smaller throttle bodies you're always gonna have low speed running issues with intakes that size.
I also used to find it hysterically uncomfortable around town for any length of time, as well as hot!
Oh yeah, and remember, you always have to snick her into neutral at junctions and the like otherwise your snazzy new STM clutch will wear out in about 25 minutes! (Just to make town riding even easier)

you can forgive her everything when you get her wound up on those big flowing A roads though ;)

Can someone please confirm why putting it in neutral is any different from holding the clutch in?

Also how long is too long to hold the clutch in?

if its in gear and you have the leaver in it will drag and get hot.
if its in neutral the plates aren't apart and skimming each other to revolve so wont wear or get hot.
if im stopped I always knock it into neutral

Hi guys

Thanks for the feedback. I appreciate, understand and enjoy all the quirks. Just wanted to be sure I wasn't incubating a future disaster .. although I might be if I don't get into the habit of finding neutral at a standstill :-)

Jen: I'll try the 8k take-off and report back:frog:

The FIM route does help, but it needs setting up correctly.
The stock gearing is very high. 14/36.................making town riding difficult.
14/38 will help and you'd not need to change the chain. 14/40 is pretty popular but you'll need a longer 96 link chain.
Slipper is stock on the R, although your aftermarket one will be more refined using bearings rather than plain ramps. Doesn't affect pulling off though.............
You can check, and if possible fit one or two dished plain plates. This will make the take up a little more refined, although still grabby.
One other "help" is a different clutch slave cylinder. Makes the lever lighter and helps with feel a little.

Hi noob,
I've returned to biking this year after a few years absence (initiated by plowing my FZR400 into a deer at 80mph!) and plumped for my first Duke, a 2001 748R.
It was just as you say, impossible to use the clutch effectively and no fun to ride at low revs.
Moto Rapido have been absolutely excellent so far and have worked wonders on the bike. The slipper clutch was worn and the basket teeth were a bit battered. These were replaced with standard Ducati parts.
An FIM chip was also installed and tuned (106.7BHP:sing: ) and the transformation was unbelievable. I have no problems using the clutch at all, and whilst the performance below 4000rpm is uneaven, it's not unbearable.
The best part about the FIM chip is that it has liberated the Carbon Termis even more, and the pop and crackle like thunder (trying to keep to 30mph is so much fun when you keep backfiring at the people behind you:devil: ).

Wilf also explained a few things about the 748R which have really helped me, and I will pass on..

The injection system on the R is the world supersport derived 'shower' injectors where the fuel is squirted into the top of the carb. Fuel can often gather on the top of the butterflies when they go from open to closed (when you come to a stop), and when you try to pull away with a light throttle, this extra fuel comes off the top of the butterfly and is dumped in the carb, resulting in a very lumpy response.
This is helped by the FIM chip which can be configured to run leaner just as you shut off the throttle.

I hope you're enjoying yours as much as I am mine!!!

Rich

[Edited on 7-7-2005 by Richd]

I have a 2002 748R with an STM slipper clutch fitted. The standard clutch was perfect for pulling away, not that snatchy, and did not make any noise or juddering. Where as the STM is and always has been a piece of crap. You either have to rev the crap out of it to pull away, which makes it shake or you try to pull away normally and the bike stalls. I have now bought a Corse clutch to see if it’s any better, have been looking for an original 748r slipper for ages, but have not found one.
Fueling as everyone says is down to setup, mine was great up until I had it serviced recently, now it stalls when I slow (which most 748r do anyway), and it coughs and splutters when rolling off the throttle.
Think I might put a PC on it to see if that will help.
Thing is, I could never get rid of it. Almost bought a Suzuki 1000 k5 after a test ride a few weeks ago. They are everything that the mags say but it doesn’t have the ducati thing.

748R
 

When i put my 748R together i put a 40 tooth rear sprocket on and Nelly set the bike up with a DP chip with 50mm termis, and there is absoltely no flat spots, occasionally it might stall when coming to a stop with the clutch in. But it dusnt feel especially lumpy below 4k just feels like it wants to be off, and when the throttles cracked thats exactly what it does! No probs with the clutch either, i think you just need the fuel injection setting up properly and i can reccomend no one better than Nelly at Cornerspeed to do that!