96 m900 fcr41 carb leaking issue

[ducriderinct]

Thanks for all the great info.

Where exactly am I supposed to install an overflow hose? I felt up in between the two carbs, and was unable to find any sort of a nipple to put a hose on on either carb. Is there a center nipple for an overflow hose that both carbs share?

I'm not sure what pump is in the bike, it was on the donor bike and running fine with the FCR's prior to the bike being hit. There were no known carb flooding or fuel pressure related issues. I put about 1000 miles on the bike after purchasing it before it got hit and totaled.

Is there a particularly recommended or commonly used fuel tap for this application? I've owned lots of Ducati's but they have all been fuel injected up until this one and the donor bike I'm pulling my parts off of.

[koko64]

There should be a T piece between the carbs above the fuel inlet T piece that you can clamp a hose to and run down safely to the LHS of the bike. The oem pump is a pentagon shape and does a good job.
You got a pic of the carbs and pump?

[ducriderinct]

Ah ok. That would explain why I couldn't find one on the carb itself. I'll do that first chance I get when I get back in town on Monday. I'll take some photos of the carbs and fuel pump as well.


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[ducriderinct]

Do I need to flush the system with the same synthetic 20w50 oil i normally run or can I use cheap conventional oil of the run of the mill 10w40 dino oil?

If no, which is more important, The viscosity or the syn/vs dino?

Also, I found the spot for the overflow hose. I have a quick disconnect on the fuel line at the tank. Can I use that to simulate shutting off the fuel tap to reseat the needle valves?

[ducpainter]

Run of the mill dino oil is fine for the flush.

You can shut off the fuel any way you want, but it's important to shut the fuel off on FCR's whether you have a manual tap or you disconnect the line.  Always shut off the fuel if you trailer the bike.

[ducriderinct]

Thanks for the quick response. Much appreciated 

[koko64]

+1 with DP's comments.
I turn the tap off every night or if parked out of habit. I like an in line fuel tap I can get to while the bike is running. 10 seconds off and back on usually clears flooding while on the run.

[ducriderinct]

Any recommendations of. Where to buy one or which can one in particular works best for this application?

[koko64]

I have seen a tidy looking Motion Pro tap with a round knob and pointer. I think the old oem tap could be cable tied to the frame or bolted to a simple bracket. The oem tap is large enough to easily grab on the run with a knob and pointer. So a local dealer may have old stock. I have had luck at lawn mower shops too.
Someone stateside should know of actual stores in your part of the world. Maybe an email to some of our sponsors.

[Speeddog]

https://www.motionpro.com/product/12-0036

[koko64]

That's the one . It's tidy.

[ducriderinct]

Thanks! I just changed the oil filter for a new one and ran two oil flushes through the engine on the new filter. Seemed to run fine, however when I drained the oil it was VERY milky.

It's worth noting that while all of the oil was new ( of various viscosities), it came from containers which have been sitting for quite a while outside in my shed. I'm not sure this mattered or had any effect on the oil coming out that way... It was mostly 5w30 and one quart of Dino 20w50. The bike was run for 3 minutes or so before draining it.

Is it possible this is a normal result from only running the bike for a few minutes and it not reaching operating temperature?

I took a video of the second oil flush draining out:



Any tips on securing that fuel tap to the bike? Zipties or hose clamps?

Thanks again!

[koko64]

If the hoses are Ziptied to the frame the inline tap should be fine. The oem tap bolts to a frame bracket deleted on later models but the bolt holes on the tap could take Zipties I guess.

[ducriderinct]

Thanks. I ordered one today.

So after 2 quick oil flushes, I let it drain overnight. Today I filled with the correct oil and a new filter and ran it for a bit at idle. Topped it off to the correct level and now I see this:


It would seem that there is still fuel in the oil. Will this be ok to run the bike or do I need to continue throwing money away doing oil flushes until it's clear? I'm on my 3rd filter now and a lot of $$$ in oil

Am I just being paranoid and this is normal condensation in the oil?

I used valvoline full synthetic 20w50 and a new k&n filter

My budget is pretty exhausted at this point...

[ducriderinct]

Thanks. I ordered one today.

So after 2 quick oil flushes, I let it drain overnight. Today I filled with the correct oil and a new filter and ran it for a bit at idle. Topped it off to the correct level and now I see this:


It would seem that there is still fuel in the oil. Will this be ok to run the bike or do I need to continue throwing money away doing oil flushes until it's clear? I'm on my 3rd filter now and a lot of $$$ in oil

My budget is pretty exhausted at this point...