Ducati Monster Forum

Hey forum I got this bike for more than 3 years always with the same problem no mechanic in my area can't fix o know enough about this bike the problem that I have is the bike in cold first start and then die and make a puff sound from the air filter when u ride like normal in high rpm all is ok but if u stop the  bike idle like crap and die  always making that mysterious noise from the air filter any ideas try already new injectors .power commander custom map and now new battery love the bike but this make me crazy helpp [bang]

Sounds like the TPS is off. Do a valve check, belt replacement or torque setting. Them Googe Brad Black and download his 2V papers.

You need to start from the basics:
   Compression is good?
   Valve clearance and timing correct?
   Throttle stop screw set correctly?
   TPS correct?
   No vacuum leaks?
   Throttle synch and CO trim set correctly?
   Maybe a thing or two I forgot.

To set CO properly you will need a scan tool and exhaust gas analyzer.  TPS can be done with a multimeter.

Check with your local club board on this forum for recommendations on a good shop.

My 2000 ie does exactly the same, always has.

If I adjust the idle screw so it revs at about 1100 rpm at idle it starts instantly and runs perfectly BUT I hate it to be idling that fast when it is in neutral at the traffic lights so I have adjusted the idle so it idles at about 900 rpm.

When the motor has warmed up after a few minutes riding it will idle at the traffic lights at 900 rpm for a few seconds then it begins to splutter and I give the throttle a blip.

For a cold start I open the throttle about 1/8th of a turn and it starts instantly.

I have got used to all of this. Maybe some fine tuning would fix this "problem" but I don't care, and I live happily with it.

1100 or 1200 rpm is good. 900 is a bit low.
You had it set nice

Follow Howies advice.

Quote from: koko64 on July 06, 2015, 05:53:58 AM
1100 or 1200 rpm is good. 900 is a bit low.
You had it set nice

+1