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FUELING ISSUE - FUEL FILTER

Started by greenohawk69, March 31, 2017, 07:41:17 AM

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ducpainter

#30
April 10, 2017, 05:56:58 AM Last Edit: April 10, 2017, 06:05:50 AM by ducpainter
I know you removed the vacuum petcock...I was referring to the manual petcock/shutoff.

That's normal. Fuel won't flow with the engine off if you have a fuel pump between the tank and the carbs. It also won't flow if the float bowls are full. There's no place for it to go. Even with the engine running you wouldn't be able to observe flow because the fuel requirement is so low. You could disconnect the fuel line at the carbs and crank the engine. Fuel should spurt from the line with the vacuum pulses from the engine. It won't do this until the lines/pump/filter are full.

The vacuum line is probably 5mm. 3/16" is the closest inch size.

ETA...If you crank the motor with a dry fuel filter you should see fuel start to fill the filter.
"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."


greenohawk69

#31
May 06, 2017, 07:05:22 AM
Tried to crank with fuel line unattached at the carb. No dice

Re-connected fuel line and still not cranking over. Seems like it wants to.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

greenohawk69

#32
May 13, 2017, 11:25:58 AM
Ran fuel line through the fuel pump and also directly to the carb (poured a small amount in the carb to assist starting).

Got the bike to start both ways, but not for more than 10-15 seconds at best and just quits like it is not getting fuel.

Fuel lines, vacuum lines and tank vent lines are all new, as is the vacuum cap for closed off spigot for the removed vacuum petcock.

I've used compressed air on the tank and all vents and have changed out the fuel filter six times.

My guess is I may have a carb issue (e.g. blockage) somewhere.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

Howie

#33
May 13, 2017, 11:09:40 PM
There is a filter many people seem to not know about before the carbs.  It is located where the line from the pump enters the carbs (assuming it is still there).. 

ducpainter

#34
May 14, 2017, 05:38:22 AM
Does fuel come out of the fuel line when disconnected from the pump and the manual tap is turned on? Yes or no? Does fuel come out of the fuel line if disconnected from the carbs, and the starter is cranked? Yes or no?
"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."


greenohawk69

#35
May 14, 2017, 12:39:46 PM
Howie - I did find the carb fuel filter and it was pretty much clean.

Dp - Yes. Yes.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

greenohawk69

#36
May 14, 2017, 01:28:11 PM
Got it to run a bit, but was popping through the carb (mainly left side/vertical cylinder) and also popping via the exhaust (right side).

Also had some smoke coming out of the exhaust.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

ducpainter

#37
May 14, 2017, 04:51:25 PM
Clean 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."


greenohawk69

#38
May 27, 2017, 10:31:14 AM
Carbs were gunked up. Gel around the jets/openings. Soaked and cleaned up.

Ran it this AM and it appears to me (not a tuner by any means) that I'm running rich.

Appears to be a 175 jet and not sure about the slow jet.

Needle jet is on 5th clip and had 1 washer underneath the jet, in addition to the thicker plastic washer.

Bike starts up and idles ok. Got on tje freeway and it pulled fine with no drop off. I do get quite a bit of decel popping.

What suggestions do you have?
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

Speeddog

#39
May 27, 2017, 12:03:42 PM
Engine mods?

Full system/cans/stock exhaust?

Pods/open airbox/ stock lid?

400/600/750/900?
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greenohawk69

#40
May 27, 2017, 12:07:01 PM
No engine mods that I know of.

97 M900.

Stock with CF exhaust (Sil Motor).

Open airbox with K&N.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

koko64

#41
May 27, 2017, 03:11:29 PM Last Edit: May 27, 2017, 03:29:09 PM by koko64
If they are Dynojet main jets then that equals roughly 165 in Mikuni jets. If there is no mark identifying them as Dynojet jets and they have the little Mikuni symbol then they are way too large by about 4 sizes at least. Maybe they are Mikuni copies.
I run Mikuni 165 mains (175DJ) with an open airbox, but your local guys will have jetting specs for your fuel.
You should check the needles for markings to see what you have. Pics will help local guys identify the needles and what clip position is best for your intake mods.
I would give the carb an overhaul with new Factory Pro needle jets (emulsion tubes) if they are stockers with more than 10,000 miles on them. It's ok to pay a pro to overhaul carbs if you are not confident doing it.

Nice looking bike.
2015 Scrambler 800

Bergweiserus

#42
June 22, 2017, 09:51:33 AM
Hi greenohawk69,  where did you get that neat-o fuel filter with the clear housing?  I need to replace mine and want THAT one  :)
'99 Dark with '94 large-valve 900.  Tons of mods...

2003 K1200GT...a few mods..

2011 Multistrada 1200S...lotsa mods (it's a beast)

greenohawk69

#43
June 22, 2017, 10:37:39 AM
From Autozone, FF3407DL, and has been hanging up on the wall by the other fuel filters, ~ $3-4.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

Bergweiserus

#44
June 22, 2017, 11:12:52 AM
Quote from: greenohawk69 on June 22, 2017, 10:37:39 AM
From Autozone, FF3407DL, and has been hanging up on the wall by the other fuel filters, ~ $3-4.

Thank you!   picking one up today after work  [thumbsup]
'99 Dark with '94 large-valve 900.  Tons of mods...

2003 K1200GT...a few mods..

2011 Multistrada 1200S...lotsa mods (it's a beast)
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