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Carb hose and other sundry questions

Started by bdfinally, April 04, 2015, 09:53:24 AM

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ducpainter

#15
May 09, 2015, 01:39:43 PM
Try tightening the screw.
"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."


bdfinally

#16
May 09, 2015, 02:07:38 PM
Already did [beer], needed to let everything cool down and figure out which contortion tool might fit. No puddling!

Would the shop have loosened that up during a rebuild?

Are we talking about an idle speed or idle mixture adjustment and how long a screwdriver do you recommend?
The tyranny of the rat race is not yet final...HST

ducpainter

#17
May 09, 2015, 03:23:46 PM
They might have.

Idle speed. It's easiest to remove the oil cooler and use a long one.

Make sure not to turn the synch screw. There are pics online as to which is which.

Did the shop set these carbs up on the bike, or did the have just the carbs?
"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

#18
May 09, 2015, 04:33:41 PM Last Edit: May 09, 2015, 04:37:32 PM by koko64
Ive noticed carb flooding on a few sets of carbs after a rebuild until the float needles settle.  I dont remember it being that way years ago.
The shop good with carbs and know these carbs?

Give a flooding float bowl a tap with the back of a screwdriver to seat things.

+1 on DPs question about the carbs being set up on the bike or not.
2015 Scrambler 800

bdfinally

#19
May 09, 2015, 05:07:19 PM Last Edit: May 09, 2015, 05:13:36 PM by bdfinally
You mean like this ol' nugget?



(the green instructions still hold true?)

Yeah I took them off and left them at the shop. Did it in about 7 days. Shop has been around for more than a decade and had a sterling rep around here with the Ducatisti and vintage collectors.

How sensitive to turning is that idle speed screw. Since I'm probably on my own doing this, I might not be able to keep it running AND adjust at the same time.

The tyranny of the rat race is not yet final...HST

koko64

#20
May 09, 2015, 05:16:01 PM Last Edit: May 09, 2015, 05:20:21 PM by koko64
That site is still gold. [thumbsup]

That means you have to do the set up with it running on the bike. What is the recommended idle mixture setting for the carb kit? Stock or DJ or Factory Pro kit?  That can be your standard setting. It's often said 3 1/2 turns out is a good start (from lightly seated). I saw that the pic said 3 turns out, so why not try that.


You may have to hold the throttle at a high idle to warm it up, then set the idle speed with the screw in the pic. Once you've set the idle speed, then you may consider doing the carb synch if the shop hasn't done it "manually" with the carbs off.
2015 Scrambler 800

ducpainter

#21
May 09, 2015, 05:20:07 PM
Quote from: bdfinally on May 09, 2015, 05:07:19 PM
You mean like this ol' nugget?



(the green instructions still hold true?)

Yeah I took them off and left them at the shop. Did it in about 7 days. Shop has been around for more than a decade and had a sterling rep around here with the Ducatisti and vintage collectors.

How sensitive to turning is that idle speed screw. Since I'm probably on my own doing this, I might not be able to keep it running AND adjust at the same time.


Turn the speed screw in a 1/2 turn and see if it'll stay running. You don't want your idle too high or the bike won't settle back to an idle after revving because the ignition advance will kick in.

Try to keep it around 1100 rpm.

Those carbs should be synched too.
"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

#22
May 09, 2015, 05:23:41 PM
Enjoying this old school thread.
Something reassuring about the concrete technology of carbs.
2015 Scrambler 800

bdfinally

#23
May 09, 2015, 05:58:20 PM
Had a stage II kit put in it 6 months after buying it in 2001. Didn't ask if it was a Dynajet or Factory Pro. K&N filter w/o snorkels on lid. Sil Moto conicals.

I'll start with small steps on the adjustment tomorrow morning and see where that takes it.
The tyranny of the rat race is not yet final...HST

koko64

#24
May 09, 2015, 06:11:17 PM
Would be Dynojet then.

Let us know how you go.
2015 Scrambler 800

bdfinally

#25
May 11, 2015, 07:24:37 AM
Quote from: ducpainter on May 09, 2015, 05:20:07 PM
Turn the speed screw in a 1/2 turn and see if it'll stay running. You don't want your idle too high or the bike won't settle back to an idle after revving because the ignition advance will kick in.

Try to keep it around 1100 rpm.

Those carbs should be synched too.

Took 3/4 of a turn to keep it running and yup, doesn't want to settle back off throttle very well. It will, but takes a few to.
The tyranny of the rat race is not yet final...HST

ducpainter

#26
May 11, 2015, 09:57:51 AM
Quote from: bdfinally on May 11, 2015, 07:24:37 AM
Took 3/4 of a turn to keep it running and yup, doesn't want to settle back off throttle very well. It will, but takes a few to.
Out of synch can do that too.

It might be cheaper to take it in and have the shop do it rather than trying to get the tools together to do that.
"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."


bdfinally

#27
May 11, 2015, 12:55:46 PM
That's what I'm thinking too. Shame, I was hoping to ride down to VIR this w/e for MotoAmerica, but not certain I'd trust it at this point.
The tyranny of the rat race is not yet final...HST

bdfinally

#28
May 12, 2015, 07:46:04 AM
Maybe I spoke too soon. Just got off the phone with the shop and got the feeling they were pushing a valve adjustment too. Said that could be the reason for it not settling off of throttle. Really?
The tyranny of the rat race is not yet final...HST

ducpainter

#29
May 12, 2015, 10:58:09 AM
Quote from: bdfinally on May 12, 2015, 07:46:04 AM
Maybe I spoke too soon. Just got off the phone with the shop and got the feeling they were pushing a valve adjustment too. Said that could be the reason for it not settling off of throttle. Really?
Not really IMO.

It's almost always synch/idle speed related.
"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."


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