Proud new owner of a '06 S2R 800..need some help

[jim_0068]

Ok, so first off i have been doing some searching but didn't quite find all my answers so i started a new thread. Full disclosure: i am certified car enthusiast nutball and at one point had a twin turbo camaro that i built and tuned myself. So i know how motors work but am new to Ducatis and their nuances.

The bike is/was running very rough and had a tough time finding an idle w/o keeping the fast idle on at least a little bit. I bought the bike knowing there was some issues with this; btw it has 4300 miles. I pulled the plugs and they were basically black and sooty which means running too rich. The idle is too low as well, hovering around 850-900rpm and from what i know it is supposed to idle in the 1100-1300 range. Now if i get the idle up that high with the fast idle lever, the bike feels normal and fine.

I put in new plugs and rode it around a bit where i have it stored (haven't transferred title/registered it yet) and the new plugs helped clean up the motor a bit and it ended up being able to idle that low without stalling but i know that eventually it will just foul them out again.

So where do i start? Throttle body syncing? Idle adjustment? TPS reset? Also is there a tutorial on how to do belts? It's an '06 with 4300 miles and i don't believe the belts have been changed.

Thanks 

[Duckintime]

Congrats on your new ride! You have a winna. First off, do the basics.. these bikes come lean from the get go. So if your sooty rich, something isnt right. If you have a PCIII- which is a Power commander, the wrong map for your bike might be installed. You know instantly if you have one. Box about the size of a pack of cigs, and is tapped piggy back into the injectors and TPS. I own an 05 and it doesnt have the 02 sensor that yours does. So, those folks on here can chime in on any mods done that can contribute to the problem. Another thing is to check the air filter. Your due for a valve adjustment and of corse belt replacement. Do a youtube search an youll find a great tutorial on how to do belts and valves on your engine- courtesy of CA cycleworks. The prev owner may have messed with the idle air bleed screws which does mess with the sync. A good Duc service shop can get those readings where they should be. But like i say, check all your basics. One last thing I recommend is fresh gas, and a can of injector cleaner, and flog crap out of that bike like it was meant to be. Unlike what most people think, Ducs dont like to be babied..... Just give it a kiss and tuck it in at night 

[jim_0068]

Thanks for the response, couple things:

1) No PCIII, bone stock bike and i do realize that they run lean to meet emissions so obviously something is wrong.
2) No 02 sensor, not sure why you think there is one. 
3) Why would i need a valve adjustment @ 4000 miles? Can they be THAT out of spec? I thought valve adjustment is at 6000 miles.

Yes i'll get the belts replaced, however, can anyone tell me why they need to be replaced every TWO YEARS? I don't buy into it. How can they go bad in 2 years if they are rated for 12000 miles?

[stopintime]

Fixing your issues isn't very time consuming, I pay for one hour. The shop hook up their electronics and adjust from there.

The belts may be good for years more, but it's cheap insurrance. They will be stiff even if the bike is just sitting there, so the two years is usually enough.

S2R800 '07 had the O2 sensor, EURO3 specs, but I think US '07s were still EURO2 = no sensor.

[Howie]

Ducati's maintenance interval for belts on your '06 is 12000 miles or two years, whichever comes first.  Chances are good they will not break, but if they do it will cost you a lot of $$$! 

Since you just bought the bike you need to check that the throttle stop screw is set correctly, throttle position sensor is set, then check CO, synch throttles, adjust idle speed with the air bleeds, rinse, repeat if needed.  This means you need to get the bike to someone with a scan tool and exhaust analyzer, or you could invest in the Technoresearch software available at 
http://www.ca-cycleworks.com    You would still need an exhaust analyzer, though.  You may get away with just setting the idle speed and throttle synch, but you would be assuming all else is good.

A video on a 2V belt change is here:
http://ducatimonsterforum.org/index.php?topic=1011.0

If you don't know when your brake and clutch fluid were last changed, add that to your "to do" list.

As far as O₂ sensors go, your 800 is the "odd duc" not having one.

[erichan8757]

The bike is/was running very rough and had a tough time finding an idle w/o keeping the fast idle on at least a little bit. I bought the bike knowing there was some issues with this; btw it has 4300 miles. I pulled the plugs and they were basically black and sooty which means running too rich. The idle is too low as well, hovering around 850-900rpm and from what i know it is supposed to idle in the 1100-1300 range. Now if i get the idle up that high with the fast idle lever, the bike feels normal and fine.

I put in new plugs and rode it around a bit where i have it stored (haven't transferred title/registered it yet) and the new plugs helped clean up the motor a bit and it ended up being able to idle that low without stalling but i know that eventually it will just foul them out again.

So where do i start? Throttle body syncing? Idle adjustment? TPS reset? Also is there a tutorial on how to do belts? It's an '06 with 4300 miles and i don't believe the belts have been changed.

Thanks 

Had similar issues on my 06 M620
not sure it its the same thing.
bike been idling rough and could roam up and down but not steady and somethings just stalled
Most likely to be around 900 and had to ride with choke slight engaged.

Been to  two fixings, one found some water in the gas tank which leads to foul gas intake
second one, and this is one is with all the symptons above, I took it to the dealer for maintanance,
and what they did was, valve adjustment, plugs( assuming you've done this)  and the bike runs
as good as new since,

some ideas for you to look for the problem.
hope it helps

e.

[jim_0068]

Ya i replaced the plugs but they were fouled out, so generally unless you fix what fouled them in the first place they will just foul again. Looks like i'll just take it in for some service.

[Duckintime]

Guess I was wrong? I thought monsters 06 and up had the O2

[ute]

great bike

i have the same baby ...no o2 sensor ..i don't think any s2r's had o2's

so do you you know if its had its emission can removed ?  check where the tb's are plugged  form where the e-can  hose's were

also check fuel filter ..replace

but that being said these are lean condition's

heat range of plugs

[jim_0068]

No, it's BONE STOCK. It's something with the FI system for sure. I put in the proper plugs, it probably needs some kind of TB sync and idle/TPS adjustment. Just going to make an appointment.

[jim_0068]

Since you just bought the bike you need to check that the throttle stop screw is set correctly, throttle position sensor is set.

what is the throttle stop screw? Is it like a universal idle screw on the throttle body? Sorry i am learning all this new ducati lingo lol. Also, are there tutorials on how to set up this screw and TPS without any special data management stuff?

[jim_0068]

wow...look at this:

http://www.desmonorthwest.com/forums/showthread.php?t=9263

Maybe i'll just tinker with it myself

[scott_araujo]

I have the same engine in my '03 800 Dark.  Your bike has a linear TPS.  You cannot adjust the TPS with a voltmeter.  You need the the VDSTS software or Mathesis tester to reset the TPS.  You also need it to set the CO at idle.  This is basically like an idle mixture screw on a carburetor.

You may be able to just raise the idle by opening up the air bleed screws on the throttle bodies.  This would normally lean out the bike but since you're running rich it may end up just right.  Also, synch the throttle bodies while you're at it.

I would say since you're almost due for a regular tune up at 6000 miles you could just do it now.  You should check the valves, it's very easy to do yourself and you may even be able to reuse the valve cover gaskets.  The other things involved are fuel filter, air filter, spark plugs, TPS reset, TB synch, idle speed set, and CO set. 

Scott