Carb off, fuel. Carb on, No fuel - Harley Davidson Forums: Harley Davidson Motorcycle Forum
 5Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 08-27-2019, 12:09 PM Thread Starter
Junior Member
 
Ironcliffs's Avatar
 
Join Date: Aug 2019
Posts: 14
Carb off, fuel. Carb on, No fuel

So I have 97 Fxdwg. It was sitting for 9 months. Accelerator pump nozzle wasnt spraying spraying fuel into carb. Get carb all clean. Soak jets and lower bowl in vinger and lemon juice. Check it off the bike sprays fuel perfectly. Put it on the bike and after a couple throttle twists I get no fuel out of the nozzle.

Drain my gas tank because I've had these paint chips coming loose from a previous owners lining of the tank. (Attached pic). After draining there was definitely dirt and sediment in the bottom of the bucket. (Attach pic of fuel filter). Brand new fuel line from petcock to carb inlet.
Attached Thumbnails
Click image for larger version

Name:	20190827_102923_1566925651150.jpg
Views:	34
Size:	2.26 MB
ID:	760809  

Click image for larger version

Name:	20190827_100844_1566925670459.jpg
Views:	23
Size:	2.33 MB
ID:	760811  

Click image for larger version

Name:	20190827_101755_1566925693338.jpg
Views:	25
Size:	1.90 MB
ID:	760813  

Ironcliffs is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 08-27-2019, 12:40 PM
Senior Member
 
candyman1340's Avatar
 
Join Date: Sep 2015
Location: New England
Posts: 19,871
Garage
Don't eat the paint chips!.......they'll give you gas.

Take the tank off and clean out the inside as best you can. Rinse out the tank.
Put some nuts and bolts inside the tank (count them.... so you'll know how many to remove when you are done) and shake the tank to loosen the pealing paint inside the tank.......several old pillows and a clothes dryer will speed up the process and give you time to do more important things.
Central joe likes this.
candyman1340 is online now  
post #3 of 11 (permalink) Old 09-03-2019, 08:45 AM
Call me Gig.
 
Wrgiacona's Avatar
 
Join Date: Oct 2011
Location: El Dorado AR
Posts: 3,964
Garage
Quote:
Originally Posted by candyman1340 View Post
(count them.... so you'll know how many to remove when you are done)
Worth repeating.

____________________________________
6/14/14 2014 FLHXS Street Glide Special Black Denim
6/30/11 2011 FXDC Super Glide Custom Vivid Black
The days I now describe as the dark time.
1979 to 1981 Yamaha 200
1976 to 1979 Suzuki 185
Wrgiacona is offline  
 
post #4 of 11 (permalink) Old 09-03-2019, 04:41 PM Thread Starter
Junior Member
 
Ironcliffs's Avatar
 
Join Date: Aug 2019
Posts: 14
Had tank cleaned at a local shop. Bought a new fuel valve kit with filter and all. James carb rebuild kit, new fuel hoses. When carb is off bike, fuel comes thru accelerator pump nozzle. When I put it on the bike, no fuel going to the carb. Fuel is on. Gas in tank. No fuel. Im at a total loss
Ironcliffs is offline  
post #5 of 11 (permalink) Old 09-04-2019, 10:40 AM
South GA Redneck
 
baggerboy's Avatar
 
Join Date: Apr 2011
Location: Soperton, GA
Posts: 3,869
Images: 4
Garage
Petcock is vacuum operated. If you put carb on bike with no gas in the bowl, it wont fill up until you crank the bike. Cranking the bike will create the vacuum needed to allow the gas to flow into the bowl.


Sent from my iPhone using Tapatalk
Smoketown$1 and 1/2 Ton like this.
baggerboy is offline  
post #6 of 11 (permalink) Old 09-04-2019, 04:19 PM
Senior Member
 
DLM Prez's Avatar
 
Join Date: Sep 2009
Location: Richmond, VA
Posts: 7,383
Quote:
Originally Posted by baggerboy View Post
Petcock is vacuum operated. If you put carb on bike with no gas in the bowl, it wont fill up until you crank the bike. Cranking the bike will create the vacuum needed to allow the gas to flow into the bowl.


Sent from my iPhone using Tapatalk
Okay, it might be this, cuz I was going to say you might have a southern hemisphere carb that operates the opposite way a northern hemisphere carb does.

God made everyone right-handed, the truly gifted overcome it.

DLM Prez is online now  
post #7 of 11 (permalink) Old 09-04-2019, 05:57 PM Thread Starter
Junior Member
 
Ironcliffs's Avatar
 
Join Date: Aug 2019
Posts: 14
I thought even with it not running I should be able to pull gas directly from the fuel valve with a vacuum pump? 😔
Ironcliffs is offline  
post #8 of 11 (permalink) Old 09-04-2019, 06:34 PM
Senior Flatulant
 
Smoketown$1's Avatar
 
Join Date: Mar 2018
Location: Smoketown, PA
Posts: 732
Garage
Quote:
Originally Posted by Ironcliffs View Post
I thought even with it not running I should be able to pull gas directly from the fuel valve with a vacuum pump? 😔

Remove the fuel hose from the carb and put it in a container.

Turn on the petcock.

Does fuel run out of the hose?

No?

Attach vacuum line to the vacuum port on the petcock and attach a low volume vacuum pump. ('Oral' works too. Just pinch the hose with Vise-grips so you don't lose the vacuum.)

Fuel run now?

No?

Take petcock apart as you may have a bad diaphragm. Some replacements are/were available from the dealer. Otherwise, it may be new petcock time.

If you're cheap, cut half of the pin length off of the diaphragm and put it back together. Just remember to turn off the fuel when you park the bike.

Good aftermarket ones cost about what a replacement one costs. They also require you to turn off the fuel when you park the bike but, they're almost bullet-proof.

A replacement stock one will cost about the same as the one above but, in theory, if the bike is not running the fuel will not drain into the motor.

Cheers,
Smoketown
1/2 Ton likes this.

2003 FXST & 2013 CVO Ultra
Smoketown$1 is online now  
post #9 of 11 (permalink) Old 09-04-2019, 11:01 PM Thread Starter
Junior Member
 
Ironcliffs's Avatar
 
Join Date: Aug 2019
Posts: 14
Quote:
Originally Posted by Smoketown$1 View Post
Quote:
Originally Posted by Ironcliffs View Post
I thought even with it not running I should be able to pull gas directly from the fuel valve with a vacuum pump? 😔

Remove the fuel hose from the carb and put it in a container.

Turn on the petcock.

Does fuel run out of the hose?

No?

Attach vacuum line to the vacuum port on the petcock and attach a low volume vacuum pump. ('Oral' works too. Just pinch the hose with Vise-grips so you don't lose the vacuum.)

Fuel run now?

No?

Take petcock apart as you may have a bad diaphragm. Some replacements are/were available from the dealer. Otherwise, it may be new petcock time.

If you're cheap, cut half of the pin length off of the diaphragm and put it back together. Just remember to turn off the fuel when you park the bike.

Good aftermarket ones cost about what a replacement one costs. They also require you to turn off the fuel when you park the bike but, they're almost bullet-proof.

A replacement stock one will cost about the same as the one above but, in theory, if the bike is not running the fuel will not drain into the motor.

Cheers,
Smoketown

I have a brand spankin new petcock (stock) on there. Ive done all those things trying to get a drop of fuel to come out to no avail.

My local HD tech thought something might be screwy with the gas cap. Its a vented cap.
Ironcliffs is offline  
post #10 of 11 (permalink) Old 09-04-2019, 11:36 PM
Senior Member
 
candyman1340's Avatar
 
Join Date: Sep 2015
Location: New England
Posts: 19,871
Garage
Quote:
Originally Posted by Ironcliffs View Post
I have a brand spankin new petcock (stock) on there. Ive done all those things trying to get a drop of fuel to come out to no avail.

My local HD tech thought something might be screwy with the gas cap. Its a vented cap.


Loosen the cap.
If the tank has a vent tube , make sure it is not blocked.
Smoketown$1 likes this.
candyman1340 is online now  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Harley Davidson Forums: Harley Davidson Motorcycle Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome