Question about 2002 Ducati 998 S Bostrom

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Weird starting issues

My '02 998 has an interesting problem. Just wondering if anyone else has experienced this. After filling up at a gas station

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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.,,

Posted on Nov 10, 2008

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Difficulty starting


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Nov 10, 2008 | 2002 Ducati 998 S

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

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