'93 M900 running poorly at steady speeds... [SOLVED!]

[koko64]

+1 maintenance.

[Howie]

For cheap insurance, change out your fuel filter. It could be clogged, giving you fuel delivery problems.

You can use the Napa Gold filters (Part #  FIL-3032) as a good replacement.

Ummm, that is for a fuel injected bike, no?

[Dellikose]

Ummm, that is for a fuel injected bike, no?

I hope not, because it's what I used on my '99 carbed M900!

Found the info here: http://ducatimonsterforum.org/index.php?topic=698.0

No problems after about 1000 miles.

edit: I see what you are saying though... I had some extra hose to work with to get it flowing the right way.

http://www.ducatimonsterforum.org/index.php?topic=32659.0

Just head to Autozone (FF3407) and they can hook you up.

[NFG]

No Autozone or Napa in Australia, sadly.  Surely though there's something I can find.

It just dawned on me it's been a very long time since I bought the bike, and had it serviced.  It's been a year since the local shop closed up to go racing, which was when I realized it was due for a service... 

Oops.  <_<

It was very well looked after before I bought it! 

[NFG]

Update!

The bike basically stopped running today, would chuff and stall more than it'd run.  So I was poking at it with my dad today and we learned a few things...  The top cylinder was not sparking well, the brand new plug was fouled with carbon 'cause it was running way too rich, so it seemed. 

Checked the choke cable seemed OK, so we stared at it thoughtfully and then called a Ducati shop.

"Oh, that sounds like the needle jets."

Ordered up a set of jets, and a fuel and oil filter for good measure.  Time for a little maintenance.  ^_^

[Dellikose]

Hopefully that solves your problem.

If not, you know you're up to date on those items and can keep narrowing it down.

[NFG]

Problem solved!

It was the left-carb (top cylinder) emulsion tube.  Got two of 'em in the mail this morning, sat in the office parking lot after lunch and learned how to pull the carbs off and swap the tubes. 

Some four hours later the bike started on the first turnover, idled smooth and runs like a dream.

I didn't see any problems with the tubes...  For sure though, new ones solved the problem.  And I'm happy, my fingernails are black, and the bike is back.  =D

Thanks for the tips, guys.