Flooding Ducati 748 - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 8 (permalink) Old 09-26-2007, 04:01 PM Thread Starter
 
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Flooding Ducati 748

I just bought a used 748 Ducati... It "suposedly" has just completed a mojor service, IE: new belts, valve adjustments/planing, plugs, Carbs, Battery etc...
My buddy Chris_491 took it out and killed it at a stoplight and it flooded...We got it going again, and I rode it around for about an hour... Parking it in my garage, I killed it again and seemed to have plenty of battery but couldn't get it to start again. Killed Battery.
From beginning bike was kinda "Hesitant" to start (seemed like starter was weak).

Is this a common Ducati Issue, Rich Carb tune, or bad battery?
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post #2 of 8 (permalink) Old 09-26-2007, 06:29 PM
 
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Quote:
Originally Posted by Mr_geoffrey View Post
I just bought a used 748 Ducati... It "suposedly" has just completed a mojor service, IE: new belts, valve adjustments/planing, plugs, Carbs, Battery etc...
My buddy Chris_491 took it out and killed it at a stoplight and it flooded...We got it going again, and I rode it around for about an hour... Parking it in my garage, I killed it again and seemed to have plenty of battery but couldn't get it to start again. Killed Battery.
From beginning bike was kinda "Hesitant" to start (seemed like starter was weak).

Is this a common Ducati Issue, Rich Carb tune, or bad battery?
the only problem my buddy had on his ducati was the charging system. it started charging at a higher than normal RPM range. his bike would routinely stall from a dead battery if he didn't rev it high. the dealer told him it was normal.

-a|ex
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post #3 of 8 (permalink) Old 09-26-2007, 07:37 PM
 
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post #4 of 8 (permalink) Old 09-26-2007, 10:56 PM
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Check the voltage on the battery after it has been sitting in the garage. Needs to be 12.8 - 13.0 Anything less than that and its not fully charged. I suggest you buy a battery tener jr for $30 and run the provided cord to the battery for fast hook up. Then charge it when you're not riding it. That way every time you leave for a ride its at least fully charged then.




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post #5 of 8 (permalink) Old 09-27-2007, 08:30 PM
 
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Are you sure it's flooding? I think the 748's are fuel injected. I often see a yellow one going the opposite way when I'm on Lookout Mt.
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post #6 of 8 (permalink) Old 09-27-2007, 11:33 PM Thread Starter
 
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cam valve timing ducati desmocedici

it is fuel injected but all the symptoms seem to be flooding...I bought a new battery, and a slow charger...still won't run at all. I now suspect cam/valve timing issues (it has ow developed a nasted burping thru the throttle body)... Does anybody know anything about this? I consider myself quite mechanically incline, and am willing to buy whatever tools/manuals needed to learn this trade. I know how to read, I should be able to be walked thru this...Right???
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post #7 of 8 (permalink) Old 09-27-2007, 11:44 PM
 
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Originally Posted by Mr_geoffrey View Post
it is fuel injected but all the symptoms seem to be flooding...I bought a new battery, and a slow charger...still won't run at all. I now suspect cam/valve timing issues (it has ow developed a nasted burping thru the throttle body)... Does anybody know anything about this? I consider myself quite mechanically incline, and am willing to buy whatever tools/manuals needed to learn this trade. I know how to read, I should be able to be walked thru this...Right???
have you inspected the plugs for discoloration or wetness?

-a|ex
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post #8 of 8 (permalink) Old 09-28-2007, 12:52 PM
 
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Quote:
Originally Posted by Mr_geoffrey View Post
it is fuel injected but all the symptoms seem to be flooding...I bought a new battery, and a slow charger...still won't run at all. I now suspect cam/valve timing issues (it has ow developed a nasted burping thru the throttle body)... Does anybody know anything about this? I consider myself quite mechanically incline, and am willing to buy whatever tools/manuals needed to learn this trade. I know how to read, I should be able to be walked thru this...Right???
Quote:
Originally Posted by Back _Marker View Post
have you inspected the plugs for discoloration or wetness?

-a|ex
If it is flooding (you can smell gas), the first thing I would check is the ignition. Actually, the first thing I would do is pull the plugs to see if they are wet. Plus, if I owned a Ducati the first thing I would learn how to do on the bike is how to adjust the desmodromic valves.
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