2001 M750 Trouble shooting before I tear into carbs

[ktownbum]

So I have a 2001 M750 that I got awhile back.  Just got it fired up for the springtime, but noticed some interesting issues. 

I have read on here that the idle screw should be set around 3.5 to 4 turns out, but I have mine out all the way at 9 turns out.  Here are the things I found modified on the bike:

-Airbox is open
-two k&n pod air filters on stock Mikuni carbs
-hotter coils and spark
-after market exhaust
-17000 miles on it

Now I don't know what jet is in the carb just yet, but Im sure ill be diggin into that soon.

The bike sometimes will backfire, but not as bad as when I first got it.  Also, if its a cold start, sometimes it will fire back through the carbs.  Throttle seems to hang a little bit after backing off revving it. 

Do you guys think this is just a simple carb needs cleaning and sync issue?  My guess is its got all the mods, but not the right jet.

Let me know what you think,

-Al

[ducpainter]

Sounds like it was never jetted correctly.

I'd get a jet kit. I like K&N, others like FactoryPro. The FactoryPro needle jets are better. I like the Dyno Jet needles and springs. Your choice.

The throttle hanging is due to the idle being too high or poor synch, or both.

[Howie]

I had Dyno Jet needles and springs with Factory Pro jets in mine with a stage 2 Dyno Jet jet kit, open air box.  Good combo.  Unfortunately you need to find out what is in those carbs. 

[scaudill]

Here is an interesting thread about those carburetors.
http://www.ducatimonsterforum.org/index.php?topic=71115.0
It is worth reading to gain some knowledge before you begin.  Not specific to your problem, but worthwhile. 
Sterling

[koko64]

Put a jet kit for an open airbox through it. Maybe new needle jets from Factory Pro and a stage 2 Dynojet kit as some have suggested and set it up as per the instructions.
The intake mods to the bike require a jet kit more than say slip on exhausts.

I'll add that a good carb service after that time and mileage is a good idea, so tune and synch with the jet kit and needle jets. It will make a difference.