Question about 1998 Ducati 900 SS

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Ducati 900 ss fuel injection

The bike starts perfectly, runs good until it gets hot, then it starts to miss fire and stutters at 5000rpm, what else can i do?

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  • casper willemse Feb 02, 2010

    Thanks, I have serviced the bike, checked all connections, changed the coils around, replaced the fuel pump and cleaned the tank out, also adjusted the bypass screws a bit, as it seemed like a fuel starvation problem, according to the maintenance manual, the fuel mixture gets adjusted by the computer as the engine gets warmer, will this be a too lean or too rich mixture? Is there an easy way to balance these settings with out going to the dealers?

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I have to have you start at the basics first on this one. Check the spark plugs, the plug wires, and most importantly, the timing belt tension. Check all connections going to the crank sensor, and also check the rectifier connections and the coil pack connections as well as the spark boxes. Also, when was the last valve adjustment/belt replacement? Usualy the injected Duc's don't ever pick up missfire conditions. The Carburated versions are sometimes known for it, but usualy it's the result of the carbs out of synchronization. I would be willing to say this is a tune up issue rather than a broken part issue. If it were a broken part, you'd be experiencing the issue almost all the time, not just at high rpm's and high load. Check the tune up, let me know if anything looks out of the ordinary in there.

Posted on Feb 01, 2010

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1 Answer

My '98 900 SS ie misses and backfires at low revs, around 60 k/p/h and slower. Thanks.


The engine misses the firing as there is a faulty electrical issue or a fuel mismatch on the settings.
Now if this happens ONLY on the lower RPM,But there is very good performance at higher RPM then it is possible that the timing is set or is offset. It will best to have the engine tuned with the correct timing using the right equipment. Check the engine firing at low RPM Make sure there is no gasket leak on the manifold/exhaust that would change the firing.

Jan 19, 2011 | 1998 Ducati 900 SS

1 Answer

I have a 2001 Ducati 900ss that cuts out around 5500 rpm. Gets worse the warmer it gets.seems to be running rich soot comes out exhaust. bike has aftermarket d&d exhaust everthing else appears...


Hi, Anonymous the following applies to carbureted also fuel injected models and the usual suspects are:
1. Severely discharged or damaged battery, 9 volts or lower.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
10. Water or dirt in the fuel system, carburetor or filter.
11. Restricted, blocked or kinked fuel line.
12. Fuel tank empty.
13. Gas cap is not venting properly or fuel tank venting system blocked.
14. A failed fuel pump, pressure regulator and or fuel injectors.
15. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
16. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable free downloads that you need please visit the websites below. Good luck and have a nice day.
2001 900ss cutting out Ducati ms The Ultimate Ducati Forum
Free Ducati Motorcycle Service Manuals for download
Ducati OEM Parts Fiche Lookup and Online Ordering
Ducati Maintenance

Jun 23, 2010 | 2001 Ducati 900 SS i.e. N-C

1 Answer

¿How much it will be a good price to sale a Ducati 900 SS 2001?


Hi, Joche85 I don't know what part of the world you live in but in southern Florida USA you could get $6500-$7500 depending on condition in the year 2010 for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. If necessary, transport your bike to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your problem. For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
Free Ducati Motorcycle Service Manuals for download
Ducati OEM Parts Fiche Lookup and Online Ordering
Ducati Maintenance
Ducati 900 SS Nuda 2001
the official tips and tricks thread Speedzilla Motorcycle Message Forums

Mar 27, 2010 | 2002 Ducati 900 SS

1 Answer

My motor bike will turn over the motor but will not fire, new spark plug, new battery, fuel ok?


are you getting spark from lead 2 plug. is it blowing any smoke when u turn it over and if so what colour?

Oct 10, 2009 | 2001 Ducati 900 SS i.e. N-C

1 Answer

When i start my 900 ss it idles ok for about 10 srconds then the idle goes up to 4000


I the bike has carbs (not fuel injected) then an air leak between the carb and cylinder has developed. This leans the mix and increases idle speed. Usually the rubber parts get hard and then cracks show up, and that is where the extra air gets in.

Jun 27, 2009 | 2000 Ducati 900 SS i.e. N-C

1 Answer

900 ss Stalling


Sounds like the carbs are getting starved for fuel as load and rpm's increase. Start with Jack's suggestion on the fuel filter and get a new one. If that doesn't do it check other items in the fuel delivery circut. Rust or scale in the tank plugging the pickup dried out fuel lines that are semi-collapsed dirt and grit in the carbs - stuff like that. Fuel delivery problems typically seem to manifest themselves in the higher gears under load. They don't show up in the lower gears when accelerating simply because the bike pulls through them so quickly. If delivery is barely adequate, it has a split second to catch up when you shift. As the duration of uninterrupted load increases, it will run out of gas before the next shift. Typically, they fire right back up after you pull over and let them sit for a minute with the fuel pump running. Does your bike do this?,,,

Nov 10, 2008 | 2001 Ducati 900 SS i.e. N-C

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