Question about 2003 Ducati Monster 620 i.e.

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I just got a 03 monster and it started and ran after a new bat. but now it wont, it did sit for a year.... clogged injectors?

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Have you solved this problem yet. Did getting the injectors cleaned work?

Posted on Mar 19, 2013


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I put a new rebuild tranny in a 1995 Dakota 4 by4 and now it won't run for crud! Sometimes you can get it to idle for lil bit. But you can't rev it up it anything. Iv replaced the fuel pump ,throttle...

If the car shows these symptoms when in neutral, then it is likely not an issue with the transmission.
Start with checking the basics. You mention it had been sitting for two years. The first thing I'd do is drain the entire fuel system. Fuel usually won't sit for that long without waxing. This is where the make-up of the fuel itself changes over time and causes it to lose it's flammable nature. It will also tend to clog and damage components within the system, including the fuel pump and injectors. You MUST clean the system and refill with fresh pump fuel before attempting any further diagnosis.

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My 2003 duc monster wont start new bat, plugs, it sat for a year...

Hi, Jnseb9073 if your bike has been sitting idle for months or years and you did not do any pre-storage maintenance I feel your pain it will probably have a dead battery and not want to start or if it starts it will idle and run poorly, here are the following steps necessary to complete in order to get your bike back to an acceptable running condition.
1. If your battery was 3 years or older when you last had the bike running you should replace it.
2. If you believe your battery might still be serviceable remove it from the bike and put it on a 1 or 2 amp trickle charger for 24 hours. If it is the old lead acid type with visible cells and acid levels fill each cell to the top line with distilled water and replace the caps, run the vent tube into a plastic or styrofoam cup, any cells that are cloudy/milky replace the battery.
3. After charging remove the leads and let the battery sit for a couple of hours then check the battery voltage with a volt meter, you should have 12.5 volts or better, any readings in the 11 volt range you need to do a proper load test on the battery and replace as necessary, any readings in the 10 volt range you have a dead cell and replace the battery.
4. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
5. Remove your air cleaner and clean and re-oil per Mfg. specifications.
6. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
7. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
8. Replace spark plug with a new one and check for spark.
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.
What to do When Your Motorcycle Won Start Ducati Monster S4R 2003 2006 Factory Service Repair Manual Download...
Ducati OEM Parts Fiche Lookup and Online Ordering
Ducati Maintenance

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The injectors are probably closed or clogged from fuel sitting. Remove the injectors and clean .

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Start with the simple, if the fuel filter has not been replaced. There may be a good chance that the filter may have gotten to the end of it's life and needs to be replaced. The fuel filter should be replaced 15,000 miles or one a year.

Good luck and keep me posted.

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You have a cam or crank sensor that has gone out.

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