Question about 2004 Ducati 998 S Final Edition

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Weird 998 problem

My 998 has an interesting problem. Just wondering if anyone else has experienced this. After filling up at a gas station, the bike will frequently crank but not start. A quick opening of the gas tank lid cures the problem. My theory is that the vent opening on the cap and the rubber vent tube are not lining up properly. BTW, it never has fuel starvation while running.

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I think your theory sounds pretty accurate or one of the vents is just clogged.

Posted on Nov 20, 2008

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I would like instructions on how to drain the carb for winter storage


Please do this: Get a fuel stabilizer such as StaBil, from your auto parts or motorcycle shop place. Go to the gas station, put the amount of stabilizer required in yourf tank, then fill the tank. Go for a little ride. When you get home, turn off the fuel valve. Let the engine run until it stop (runs out of gas). Store your bike in a cool, dry place.

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You don't mention any other symptoms so I will assume the electronics, ie speedometer, tach, and such, did't start acting weird? If that is the case check your grounds these old rigid mount sportsters are known for vibrating the grounds loose.

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Weird starting issues


the bike will frequently crank but not start. A quick opening of the gas tank lid cures the problem. My theory is that the vent opening on the cap and the rubber vent tube are not lining up properly. BTW it never has fuel starvation while runningI think your theory sounds pretty accurate or one of the vents is just clogged.,,

Nov 10, 2008 | 2002 Ducati 998 S Bostrom

1 Answer

998 info


I looking to purchase a 998? 1.What is the + & - of this model? 2.Is the 998 a better bike than the 996? 3.What was the production year of the 998 2002 – 2003? 4.Does the 998S have the same engine as a regular 998? 5.What is some of the best mods to do to this bike?1.Its the first generation of the testastretta motor which is a major improvement on the older 4v design. Its a fantastic bike I'd shoot for a later S model, with Ohlins suspension and adjustable steering dampener. In those days, those components worked better. 2. The 996 is not a bike I'd recommend. They had several issues; from mid range hang-ups because of the dual injection, to the notorious flaking rocker syndrome. I'd stay away... the 998 is the right way to go. 3. 2002 - 2004 actually. The best of the 998's was the 2004 FE edition, with a number plate on the triple. If I were to spend any money, thats where I'd go. There is also a limited production 2002 model year ONLY 998R, which is pretty awesome and has carbon fiber everywhere. 4. In the US, the motors are all the same. In europe, the S model had a deep-sump motor, which put out more power. 5. If your riding around town, most guys get bar risers, better seats and of course, rear sets. If you plan on tracking the bike, heh... you're in for a list that will make your eyes bleed. They are great bikes, I truly wish they were cheaper because I'd own one! Just remember, mileage doesn't really mean very much with Ducati's. The big deal is year. The newer it is, the better off you'll be!,,,

Nov 10, 2008 | 2002 Ducati 998 S Bayliss

1 Answer

998 Top Speed?


998 is a great bike... they arn't super fast top speed is 162mph and its gear limited not electronically limited. It will take you a while to get to 162mph quarter mile is 11.5 sec @ 135mph, so I'd guess, 15 sec or so too 162mph, from a stop. You can get a modern-day corvette to do better,,,

Nov 10, 2008 | 2002 Ducati 998 S Bayliss

2 Answers

Difficulty starting


darn thing wouldnt start after I fueled it up. After sitting for 10 min it fires right up and runs great. When starting cold it fires right up with no prob. Someone told mevapor lock is my issue this sound right ? and if so what is vapor lock and how do I prevent it ? thx all for your support.,The vapor lock situation happened to me a few times with my 748, so it CAN happen. To test this theory, just fill your tank to 1/2 of what it normally holds, next time you fill it. Or pop the cap off right now and let it sit for 10 minutes and close it back up again. Al your doing is releasing the pressure on the system. Will this do any good? Well, had always been filling my tank too high and once I realized that popping the gas cap, would release the pressure, I never had a problem after.,,,

Nov 10, 2008 | 2002 Ducati 998 S

1 Answer

998 Top Speed?


998 is a great bike... they arn't super fast top speed is 162mph and its gear limited not electronically limited. It will take you a while to get to 162mph quarter mile is 11.5 sec @ 135mph, so I'd guess, 15 sec or so too 162mph, from a stop. You can get a modern-day corvette to do better,,,

Nov 10, 2008 | 2002 Ducati 998 R

1 Answer

998 info


I looking to purchase a 998? 1.What is the + & - of this model? 2.Is the 998 a better bike than the 996? 3.What was the production year of the 998 2002 – 2003? 4.Does the 998S have the same engine as a regular 998? 5.What is some of the best mods to do to this bike?1.Its the first generation of the testastretta motor which is a major improvement on the older 4v design. Its a fantastic bike I'd shoot for a later S model, with Ohlins suspension and adjustable steering dampener. In those days, those components worked better. 2. The 996 is not a bike I'd recommend. They had several issues; from mid range hang-ups because of the dual injection, to the notorious flaking rocker syndrome. I'd stay away... the 998 is the right way to go. 3. 2002 - 2004 actually. The best of the 998's was the 2004 FE edition, with a number plate on the triple. If I were to spend any money, thats where I'd go. There is also a limited production 2002 model year ONLY 998R, which is pretty awesome and has carbon fiber everywhere. 4. In the US, the motors are all the same. In europe, the S model had a deep-sump motor, which put out more power. 5. If your riding around town, most guys get bar risers, better seats and of course, rear sets. If you plan on tracking the bike, heh... you're in for a list that will make your eyes bleed. They are great bikes, I truly wish they were cheaper because I'd own one! Just remember, mileage doesn't really mean very much with Ducati's. The big deal is year. The newer it is, the better off you'll be!,,,

Nov 10, 2008 | 2002 Ducati 998 R

1 Answer

Difficulty starting


darn thing wouldnt start after I fueled it up. After sitting for 10 min it fires right up and runs great. When starting cold it fires right up with no prob. Someone told mevapor lock is my issue this sound right ? and if so what is vapor lock and how do I prevent it ? thx all for your support.,The vapor lock situation happened to me a few times with my 748, so it CAN happen. To test this theory, just fill your tank to 1/2 of what it normally holds, next time you fill it. Or pop the cap off right now and let it sit for 10 minutes and close it back up again. Al your doing is releasing the pressure on the system. Will this do any good? Well, had always been filling my tank too high and once I realized that popping the gas cap, would release the pressure, I never had a problem after.,,,

Nov 10, 2008 | 2003 Ducati 998

1 Answer

998 Top Speed?


998 is a great bike... they arn't super fast top speed is 162mph and its gear limited not electronically limited. It will take you a while to get to 162mph quarter mile is 11.5 sec @ 135mph, so I'd guess, 15 sec or so too 162mph, from a stop. You can get a modern-day corvette to do better,,,

Nov 10, 2008 | 2003 Ducati 998

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