Author Topic: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!  (Read 10078 times)

Offline randy yocum

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #60 on: July 03, 2019, 06:35:13 PM »
Thanks, but I found one ,a nice guy Ed Milich from Guzzitech,on ebay $45.00 including shipping from California .Can't beat that with a stick... :thumb:
« Last Edit: July 05, 2019, 05:56:34 AM by randy yocum »
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2007 Norge
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1981 V-1000 G-5
1997 Ducati 900ss
1983 XL 600R bought new
1978 XS 1100

Offline Tom

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #61 on: July 03, 2019, 07:16:12 PM »
True.   :thumb:
From the Deep Deep South out in left field.  There are no stupid questions.  There are however stupid people asking questions.  🤣, this includes me.  😉

Offline Turin

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #62 on: July 04, 2019, 02:29:34 PM »
Ed could probably provide you with jetting specs for open airbox / pod filters.
1997 Daytona RS
1991 Rennsport California III
1991 LeMans 1000
1987 LeMans SE Dave's Cycle Racer
1984 LeMans III
1985 Sidlow Guzzi
1974 850-T Sport
1969 A-series Ambassador
1996 Triumph Daytona 1200
1996 Triumph Daytona 900
1982 Alfa Romeo GTV6 Balocco SE 3.0

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #63 on: July 04, 2019, 02:44:21 PM »
Ed could probably provide you with jetting specs for open airbox / pod filters.

  I listed the jetting , float levels and placement of the various vent hoses when using pods on a 900 ..But not all 900's are the same ..For the Monster ,96 was the last year of the big valve, hotter cam V2 heads..I'm not sure if the 900 SS continued with the V2 stuff...???

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #63 on: July 04, 2019, 02:44:21 PM »

Offline Antietam Classic Cycle

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #64 on: July 04, 2019, 04:41:37 PM »
Thanks, but I found one ,a guy Ed Multch Milich from Guzzitech,on ebay $45.00 including shipping from California .Can't beat that with a stick... :thumb:
Charlie

Offline Turin

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #65 on: July 04, 2019, 04:53:55 PM »
I had no idea the post '96 motors were lesser spec.
1997 Daytona RS
1991 Rennsport California III
1991 LeMans 1000
1987 LeMans SE Dave's Cycle Racer
1984 LeMans III
1985 Sidlow Guzzi
1974 850-T Sport
1969 A-series Ambassador
1996 Triumph Daytona 1200
1996 Triumph Daytona 900
1982 Alfa Romeo GTV6 Balocco SE 3.0

Offline Tusayan

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Re: carburated Ducati 900ss starving for fuel at 5000 rpm -FIXED- !!!
« Reply #66 on: July 04, 2019, 05:01:16 PM »
  I listed the jetting , float levels and placement of the various vent hoses when using pods on a 900 ..But not all 900's are the same ..For the Monster ,96 was the last year of the big valve, hotter cam V2 heads..I'm not sure if the 900 SS continued with the V2 stuff...???

All carb 900SSs are in the same state of tune, with sport oriented heads/valves/cams.

As noted later Monsters and also Cagiva Gran Canyons had 750 heads/valves/cams on 900 cc cylinders. This reduces power by perhaps 5 HP, about 68 stock versus 73 or so for an SS. Not a factor for a ‘97 900SS CR.

Removing the air box lid on 2V Ducatis of this era potentially adds power due to more air flow at a given throttle position, the dynamically active part of the air box is below the filter so air box tuning issues do not result when removing the lid.  The factory lid reduces intake noise and makes sure the filter stays dry, but reduces power.  When it is removed the increased air flow needs more fuel or a less combustible mixture occurs, lean misfire etc, which does not allow the added power to occur.  Therefore unless the carbs are jetted for the displacement, heads and air box configuration the bike runs poorly.
« Last Edit: July 05, 2019, 07:31:39 PM by Tusayan »

 

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