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96 m900 fcr41 carb leaking issue

Started by ducriderinct, October 23, 2016, 09:07:45 AM

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ducpainter

#30
November 02, 2016, 01:04:44 PM
My opinion...you've done your due diligence to remove any fuel. Fuel would not be white. The condensation is fairly normal for a Duc run at idle in cool temps. I'd ride it and if any condensation still remains, just remove the oil fill cap at the end of the ride. Any moisture should evaporate.

I think you're just a bit paranoid due to your fuel issue.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


ducriderinct

#31
November 02, 2016, 01:10:53 PM
Thanks again for the quick response. Going to take a quick ride now :)

Howie

#32
November 02, 2016, 01:19:58 PM
Covering the oil cooler will help warm the oil.  Removing the oil filler cap for a few minutes after your ride will help get rid of the moisture.

ducriderinct

#33
November 02, 2016, 02:51:02 PM
Well it seems like everything's working as it should. Bike ran good. After a 15 min ride there was a lot of moisture in the sight glass so I rode for another 30 mins or so and there was very little moisture left.

Pulling open the fuel quick disconnect for 15-20 seconds while it was warmed up and running seemed to fix the carb flooding while riding issue though I forgot to check the carb throat to see if there was any vaporized fuel in there. Probably too late at this point since it was like an hour ago. Have to check it next time I ride.

Thanks for all the help and the quick responses! You guys are the best! :)

koko64

#34
November 02, 2016, 03:02:20 PM Last Edit: November 02, 2016, 03:08:05 PM by koko64
Are you running the oem breather hose to the airbox? I cant remember. Running a little breather pod off the breather box under the seat lets steam escape from the oil vapor leaving less moisture to drain back down to the crankcase.

I agree with making an oil cooler cover for winter. The cooler is quite effective and these motors do a good job of shedding heat, considering they are air/oil cooled. These style motors have won Dakar races.

I've learned heaps here.
2015 Scrambler 800

ducpainter

#35
November 02, 2016, 05:14:27 PM
It isn't exactly winter in CT yet... [laugh], but an oil cooler cover is a good idea to allow oil temps to rise enough to boil off water in the crankcase if the ambient temp while riding is around 400F.

Idling in the garage will create lots of condensation even above 40.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


koko64

#36
November 03, 2016, 03:00:34 AM
I bet it would feel like winter to me. ;D
2015 Scrambler 800

ducriderinct

#37
November 03, 2016, 06:56:13 PM
Ha! No not winter yet :) There is a small k&n filter on the crankcase and the breather port is blocked off on the stock air box. I didn't know it would be a good idea to cover the oil cooler. I ride in all sorts of weather.

For what its worth, I had more trouble starting this bike with the stock carbs in the cooler weather than I ever did with the FCR's on the other bike. It's running instantly with the FCR's. No muss, no fuss.

I'm looking forward to installing my fuel valve tomorrow so I can do some riding this weekend :)

ducpainter

#38
November 03, 2016, 07:03:03 PM
I wish my 96 900 started instantly with the FCR's.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Speeddog

#39
November 03, 2016, 07:38:18 PM
Quote from: ducpainter on November 03, 2016, 07:03:03 PM
I wish my 96 900 started instantly with the FCR's.

You'll get the drill figured out.
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~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

ducpainter

#40
November 04, 2016, 04:52:12 AM
Quote from: Speeddog on November 03, 2016, 07:38:18 PM
You'll get the drill figured out.
It may be me, or it could be the way Eric jets them down low. He always re-jets FCR's regardless whether they were purchased from ca-cycleworks, or direct from Sudco.

Other than cold start up the things are flawless.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


greenmonster

#41
November 04, 2016, 07:16:21 AM
What`s Eric`s choise of low speed jet?
M900 -97 
MTS 1100s  -07

ducpainter

#42
November 04, 2016, 07:21:11 AM
Quote from: greenmonster on November 04, 2016, 07:16:21 AM
What`s Eric`s choise of low speed jet?
I wish I had an answer Gert.

I'll ask him and post up, or maybe he'll stop by and let us know.

I do know that he always jets for driveability, and the thing never has as much as a hiccup.

When I say it's tough to start, i mean that it always will fire on the first, and subsequent attempts, but it doesn't stay running on the first few attempts.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


koko64

#43
November 04, 2016, 09:39:06 AM
Interested in Eric's take.

The supplied pilot/slow jet is quite large, especially so for 41's. I haven't met one I have't had to change.
2015 Scrambler 800

ducriderinct

#44
November 04, 2016, 02:02:39 PM
So I don't know if this makes any difference in my setup but here's a couple photos of the fuel pump on my bike:




Fwiw, my carbs came from CA cycleworks.  When its really cold ( like in the 30's ) it's usually running on the 3rd try. Anything above 45 degrees, it's running on the first start attempt.
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