Ducati Monster Forum

Moto Board => Tech => Topic started by: kawazar on February 16, 2009, 05:27:22 AM

Title: Fuel Injectors
Post by: kawazar on February 16, 2009, 05:27:22 AM
How do the fuel injectors get removed on my 01 900ie? I noticed there is a screw that holds it, remove that then just pull them out? Are there any o-rings that need replacing once their out?
Title: Re: Fuel Injectors
Post by: ghostface on February 16, 2009, 07:06:08 AM
Quote from: kawazar on February 16, 2009, 05:27:22 AM
How do the fuel injectors get removed on my 01 900ie? I noticed there is a screw that holds it, remove that then just pull them out? Are there any o-rings that need replacing once their out?
It take a little muscle. Did you remove then intakes that lead into the airbox (twist action)?
Title: Re: Fuel Injectors
Post by: kawazar on February 16, 2009, 09:10:21 AM
I didn't remove anything yet. Just getting a plan together on what I want to do.
Title: Re: Fuel Injectors
Post by: 2001cromo on February 16, 2009, 09:44:33 AM
Quote from: kawazar on February 16, 2009, 09:10:21 AM
I didn't remove anything yet. Just getting a plan together on what I want to do.

First, what exactly do you think the problem is? What is/isn't the bike doing? What has been done recently and what mods intake/exhaust are done to this bike?

I'll assume it's for the bike you have listed a 2001 M900?

As far as your original question. Yes, just one little torx bolt holds them on. The O rings are on the injectors and usually don't need replacing.
Title: Re: Fuel Injectors
Post by: kawazar on February 16, 2009, 09:56:06 AM
There are no problems with the bike. After talking to my dealer I was going to pull the injectors and soak them in a cleaner. I asked them about cleaning the injectors since I have 42k on the bike, they said to use Castrol Super Clean which is not a harsh solvent. Soak them overnight and throw them back in. They said they usually don't have to clean them but with the mileage I have it won't hurt anything. They agreed with the owners manual not to use liquid cleaners in the tank.
Title: Re: Fuel Injectors
Post by: Howie on February 16, 2009, 01:49:24 PM
Quote from: kawazar on February 16, 2009, 09:56:06 AM
There are no problems with the bike. After talking to my dealer I was going to pull the injectors and soak them in a cleaner. I asked them about cleaning the injectors since I have 42k on the bike, they said to use Castrol Super Clean which is not a harsh solvent. Soak them overnight and throw them back in. They said they usually don't have to clean them but with the mileage I have it won't hurt anything. They agreed with the owners manual not to use liquid cleaners in the tank.

Save yourself a lot of workn no reason to fix what ain't broken, not to mention the Castrol Super Clean probably won't do much for internal cleanliness anyway.
Title: Re: Fuel Injectors
Post by: 2001cromo on February 16, 2009, 03:18:56 PM
Quote from: howie on February 16, 2009, 01:49:24 PM
Save yourself a lot of workin, no reason to fix what ain't broken, not to mention the Castrol Super Clean probably won't do much for internal cleanliness anyway.

+1 on what Howie's sayin.
And do yourself a favor and replace the fuel filter if you want to work on something.
Title: Re: Fuel Injectors
Post by: kawazar on February 17, 2009, 04:48:03 AM
Already replaced the fuel filter. Actually I had been getting my bike serviced at the dealer for most of its life and found out last year they never replaced the fuel filter after all of these miles. The bike actually ran better once I replaced it. Thats why I was looking to clean the injectors as well because of the clogged filter the injectors were not getting properly filter fuel and I can't imagine what was sent through them.
Title: Re: Fuel Injectors
Post by: WTSDS on February 17, 2009, 05:39:54 AM
Has the insides of the tank been cleaned out, or checked for crud ? Easy enough to do.
Title: Re: Fuel Injectors
Post by: kawazar on February 17, 2009, 06:26:23 AM
Yeah, I did that when I did the filter. I checked my paperwork for the services and it showed a fuel filter was used numerous times. However, when I pulled the filter it had a 2000 date on it. I don't think the fuel filters used at the dealer would have a 2000 year when it was replaced in 2007. Its possible it was on the shelf that long but I doubt it. When I turned the filter down all brown stuff came out of it. I can't believe it didn't burn out the pump!
Title: Re: Fuel Injectors
Post by: WTSDS on February 17, 2009, 06:43:02 AM
Good question, I suggest you ask the manager of the dealership, and mention yr concerns about the fuel pump.

Not that I think there's been any work charged but not done, just seems curious...
Title: Re: Fuel Injectors
Post by: kawazar on February 17, 2009, 06:59:11 AM
I'd like to but I moved out of state and the Ducati franchise was sold off to another dealer since I discovered this. The new dealer has my records but none of the service people are at this new dealer.
Title: Re: Fuel Injectors
Post by: ghostface on February 17, 2009, 09:37:47 PM
Just throw some FI cleaner per full tank (ration it in 1/4ths') and ride the bike.
Title: Re: Fuel Injectors [Removal]
Post by: Brooklyn67 on July 28, 2015, 07:28:52 AM
I want to piggyback into this thread since the topic is valid for my question which is -- "How do I remove the fuel injectors".
I don't have my manual with me and though it seems pretty straight forward, I wanted to ask the forum before popping them out.

Bike: 2001 750 Monster
Issue: Bike had been sitting for 4 years and there were a few issues with it in regards to it getting fuel to start the engine.
---- In tank fuel pump was not working >>> it has been replaced and is now pumping fuel at good pressure
---- After draining the old fuel in the tank and putting fresh fuel, the bike started and ran, however, after shutting down and letting it sit overnight, the engine will not start again, but the fuel pump is working and the spark plugs connections are clean and there is a fat blue spark across both plugs.
---- When I poured a little gas directly into the intakes in the bottom of the airbox, the engine fires right away and then dies after the small volume of fuel was depleted

I'm thinking that it has to be the injectors and that small particles of rusty sediment were loosened when the bike was initially started and then when it sat overnight, the sediment settled and clogged the injectors and now the engine isn't getting fuel.

I have new injectors and I have the airbox off.  I can see that there is a torx bolt holding down the fuel distributor cap on top of the injectors.  I know that there are 0-rings at both end of the injectors and would believe that they are tension fit at both ends (in the head and at the fuel dist. cap).

Can someone please confirm the procedure to extract the injectors and if there is a proper method to seating the new ones?  The new ones are in plastic bag with what seems to be some type of lubricant coating them to protect them from corroding/rusing up. Should this lubricant be removed with solvent or will it assist to help seat the injectors?

I need to get the injectors installed tonight, so any ASAP help would greatly be appreciated.

Thanks.
Title: Re: Fuel Injectors
Post by: bagodoosh on August 09, 2015, 02:02:41 PM
if you plan on pulling the injectors i would suggest sending them for ultrasonic cleaning & flow test. it's generally <$20 per injector + shipping. that cost should cover replacing maintenance parts (o-rings, caps, spacer, filter). you should also get before/after flow numbers.

if there's an improvement, re-balance your TB & reset the A/F (CO) ratio.