Review of Sporster Fuel Gauge 75338-09 - Harley Davidson Forums: Harley Davidson Motorcycle Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 34 (permalink) Old 04-17-2010, 12:25 PM Thread Starter
Senior Member
 
Roosterman's Avatar
 
Join Date: Sep 2009
Location: H-D Hometown
Posts: 108
Review of Sporster Fuel Gauge 75338-09

During the winter I took some gift cards I had received and bought the HD 75338-09 fuel gauge for my Sportster. It is fairly expensive at $250. I know everyone just says use the trip odometer. I just decided I wanted something more visual.

I finally got around to installing the gauge this weekend. It went well enough until I had to make some connections with existing wiring. The service manual was very helpful with pictures and directions. Taking off the fuel tank and removing the fuel pump where fairly start forward. Removing the fuel pump fuse and main fuse were again well documented. When it came to the wiring Things were not so clear. There are loads of schematics in the back, but they don’t show the actual harnesses, connections and locations. The directions for the fuel gauge used such useful directions like “Find fuel sender resistor assembly [200A] located between the oil tank and frame near the seat pan.” Another was “Splice the orange wire of the fuel gauge into the orange/white wire… near rear lighting connector [7A] located in the seat pan area.” Not having seen these types of things it would have been nice to see a picture to know what I was looking for.

I finally found the fuel sender resistor connector on the opposite side that the directions lead me to believe. I guess you could saw it was on the driver’s side not the passenger side like I thought. Below are some pictures showing the hiding place, the sender resistor connector and the resistor for the low fuel indicator light.
The last piece to find was the 7A connector. There was just nothing I could see for the 7A. That which I could see was labeled so I knew they were not the elusive 7A. I finally got the idea to pull and move the ones I could see and this revealed the 7A underneath the others. Again I have a picture showing the lighting connector.

The earlier stages I didn’t take pictures since they are well documented in the instructions. It was interesting to see what it is that turns on the low fuel light. It is just a small plunger like piece that once it isn’t floated by fuel, sends the signal and the light goes on. That was removed and replaced with a long sensor, that I am assuming detects the fuel level and lights or turns off a light as fuel is used. Finally, once it is low enough where it isn’t detected, the fuel gauge starts the final line to blink.

It was an interesting experience to install the gauge and best of all it works. The final couple of pictures show what the gauge looks when near empty and then full.

UPDATE: I just got to the end of the first tank with the gauge. The small indicator for when fuel level is low starts to blink when the tank had .8 gallons left. I noticed it blinking and went a few more miles to a gas station. I filled it as full as possible and it took 3.7 gallons.

Hiding place


Resistor connector


Low fuel light resistor


7A connector


Low fuel


Full tank

Last edited by Roosterman; 04-17-2010 at 05:17 PM. Reason: Update to the post
Roosterman is offline  
Sponsored Links
Advertisement
 
post #2 of 34 (permalink) Old 04-17-2010, 02:06 PM
Luke 22:36
 
Kainam's Avatar
 
Join Date: Oct 2006
Location: Kansas City
Posts: 19,926
Images: 149
Garage
Pretty slick.

'05 Carbed Night Train
111 rwhp, 112 rwtq
Best 1/4 ET 12.557s
Best 1/4 MPH 108.59
Kainam is online now  
post #3 of 34 (permalink) Old 04-17-2010, 03:03 PM
Junior Member
 
75 Iron's Avatar
 
Join Date: Apr 2010
Location: Ct.
Posts: 18
Yup, thats sharp looking...
75 Iron is offline  
post #4 of 34 (permalink) Old 04-17-2010, 03:08 PM
Senior Member
 
tibadoe's Avatar
 
Join Date: Jun 2009
Location: Gladys, VA
Posts: 5,297
Images: 10
Neat guage.

Joe

2009 FLHTCU Ultra Classic Electra Glide - Vivid Black

Stage I w/SE A/C & SEST
V&H Dresser Duals
Screaming Eagle Mufflers
HD Oil Cooler
Flo Oil Filter/Cooler


"Whether you think you can or whether you think you can't, either way you're right!" - HF
tibadoe is online now  
post #5 of 34 (permalink) Old 04-17-2010, 04:26 PM
Does His Own Stunts
 
Old Milwaukee's Avatar
 
Join Date: Mar 2010
Location: British Columbia
Posts: 95
I like it!

1999 XL883C (slightly modified)
2000 FLTR (heavily bagsterized)

PGR #179937
Old Milwaukee is offline  
post #6 of 34 (permalink) Old 04-17-2010, 04:47 PM
Member
 
haknslash's Avatar
 
Join Date: Apr 2010
Location: Alabaster, AL
Posts: 77
I plan to get one. Sharp looking guage and thanks for the heads up and pictures! Does this same unit work for the 3.3 gallon peanut tank or is it calibrated to just the larger tank or does it even matter?
haknslash is offline  
post #7 of 34 (permalink) Old 04-17-2010, 05:12 PM Thread Starter
Senior Member
 
Roosterman's Avatar
 
Join Date: Sep 2009
Location: H-D Hometown
Posts: 108
Quote:
Originally Posted by haknslash View Post
I plan to get one. Sharp looking guage and thanks for the heads up and pictures! Does this same unit work for the 3.3 gallon peanut tank or is it calibrated to just the larger tank or does it even matter?
Glad it may help. I was getting a bit frantic looking for these things when I had no idea what I was looking for. And to be honest, I didn't notice anything in the instructions to do it different for the 3.3 or 4.5 gallon. I don't think there is any difference. I just checked the HD site and but in a 883XL model and it is the same part number. I'm guessing it is the same for all 2007 and later XL.

My only complaint is my own fault. I got the chrome when the master cylinder is black. I should have gotten the black.
Roosterman is offline  
post #8 of 34 (permalink) Old 04-17-2010, 06:24 PM
Member
 
haknslash's Avatar
 
Join Date: Apr 2010
Location: Alabaster, AL
Posts: 77
Good to know they have it in black. Can't wait to get my Nightster! Again thanks for the info rooster.
haknslash is offline  
post #9 of 34 (permalink) Old 04-17-2010, 06:53 PM
Senior Member
 
Ralphy's Avatar
 
Join Date: Apr 2010
Location: Australia
Posts: 816
Images: 59
Nice work mate I,m going to look into one of those.
Ralphy is offline  
post #10 of 34 (permalink) Old 04-17-2010, 10:38 PM Thread Starter
Senior Member
 
Roosterman's Avatar
 
Join Date: Sep 2009
Location: H-D Hometown
Posts: 108
Quote:
Originally Posted by Ralphy View Post
Nice work mate I,m going to look into one of those.
Good luck.
Roosterman is offline  
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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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