The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Era Specific and Model Specific > Ironhead Sportster Motorcycle Talk (1957-1985)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

Active Threads
0 NRA files for bankrupcy
Last Post: hammer6315
Posted On: 1 Hour Ago
Replies: 4
Views: 134
0 Keep & Kill
Last Post: hammer6315
Posted On: 1 Hour Ago
Replies: 19,481
Views: 1,162,558
0 Year help on ironhead confused
Last Post: Taker73044
Posted On: 1 Hour Ago
Replies: 10
Views: 150
0 63 XLCH revival
Last Post: Moon Wolf
Posted On: 1 Hour Ago
Replies: 3
Views: 67
0 How to replace Intake Manifold Seals
Last Post: d10221
Posted On: 1 Hour Ago
Replies: 87
Views: 74,980
0 Hottie of the day, no nudity.
Last Post: trainman
Posted On: 2 Hours Ago
Replies: 25,910
Views: 2,658,650
0 New from Ohio
Last Post: Mr Happy
Posted On: 2 Hours Ago
Replies: 0
Views: 27
0 Boardtracker Project
Last Post: JonesL
Posted On: 2 Hours Ago
Replies: 624
Views: 128,778
0 Tribotex
Last Post: Tomcatt
Posted On: 3 Hours Ago
Replies: 5
Views: 305
0 pinion shaft nut question
Last Post: Tomcatt
Posted On: 3 Hours Ago
Replies: 6
Views: 173
0 front end conversion
Last Post: IronMick
Posted On: 4 Hours Ago
Replies: 12
Views: 307
0 From XL to FL - any experience?
Last Post: NLXL
Posted On: 4 Hours Ago
Replies: 40
Views: 902
0 Newbie seeks smoother ride
Last Post: Tomcatt
Posted On: 5 Hours Ago
Replies: 16
Views: 990
0 motorcycle on lift for two+ years
Last Post: xlerate
Posted On: 5 Hours Ago
Replies: 3
Views: 122
0 Snippets
Last Post: sportsterpaul
Posted On: 5 Hours Ago
Replies: 404
Views: 44,899
0 Wedding Ring - Do you wear one?
Last Post: Iron Mike
Posted On: 5 Hours Ago
Replies: 340
Views: 30,812
0 Carb Air Vent hole cracked
Last Post: rocketmangb
Posted On: 5 Hours Ago
Replies: 13
Views: 677
0 1970 sportster overload
Last Post: sungod
Posted On: 6 Hours Ago
Replies: 17
Views: 646
0 My Wife Says …
Last Post: Folkie
Posted On: 6 Hours Ago
Replies: 0
Views: 60
0 my sunday driver...
Last Post: 84rzv500r
Posted On: 6 Hours Ago
Replies: 90
Views: 11,738
0 Hot Chicks on Hot Bikes
Last Post: trainman
Posted On: 6 Hours Ago
Replies: 11,552
Views: 2,362,045
0 History of Harley; One Man's Perspective
Last Post: DEEP DIVER
Posted On: 7 Hours Ago
Replies: 1
Views: 145
0 Identity crisis
Last Post: Edmundas
Posted On: 9 Hours Ago
Replies: 38
Views: 2,015
0 front brake line help - 1980
Last Post: Steve9
Posted On: 10 Hours Ago
Replies: 7
Views: 228
0 1986-90 Evo Sportsters: What every owner should know but were afraid to ask
Last Post: Rollbar
Posted On: 13 Hours Ago
Replies: 420
Views: 66,876
0 Front shock upper bolts
Last Post: Tomcatt
Posted On: 13 Hours Ago
Replies: 4
Views: 288
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 16 Hours Ago
Replies: 49,426
Views: 8,037,443
0 Pinion shaft roller bearing plug fit
Last Post: Jaime1840
Posted On: 19 Hours Ago
Replies: 14
Views: 533
0 What gas mileage do you get for touring?
Last Post: d10221
Posted On: 1 Day Ago
Replies: 153
Views: 58,501
0 Dodgy Group Members
Last Post: Bryan1976
Posted On: 1 Day Ago
Replies: 14
Views: 1,055
More...
Members Birthdays
hillclimber (71), burtondl2 (53), Cet (51), hagar71 (50), ShaneWolfe (49), grizdiesel (44), Confused89 (36), RAIDER0372 (35), spamer80 (35), svwannabe
Reply
 
Share Thread Tools Display Modes
  #1  
Old 11th November 2020
spiritof67 spiritof67 is offline
Biker
 
Join Date: Jan 2012
Posts: 73
Sportster/Buell Model: XLCR
Sportster/Buell Year: 1977
Reputation: 33040
spiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to behold
Default Sender Unit Part Number

I have a #75002-77 cylinder temp gauge...it's the one WITH the light..and I have seen at least three different part's for the sender unit, 75005-77 being one. That part number shows up as an oil temp sender as well. I have also seen 75005-69. Anybody have wisdom on which is correct, or isn't there any difference?
Reply With Quote
  #2  
Old 11th November 2020
72 Ironhead XLH's Avatar
72 Ironhead XLH 72 Ironhead XLH is offline
Senior Master Custom Bike Builder
 
Join Date: May 2005
Location: NJ
Posts: 5,938
Sportster/Buell Model: XLH
Sportster/Buell Year: 72
72 Ironhead XLH has disabled reputation
Default

Why even bother? The only thing you need is the oil pressure light
Reply With Quote
  #3  
Old 12th November 2020
IXL2Relax's Avatar
IXL2Relax IXL2Relax is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2013
Location: Let Freedom Ring in PA
Posts: 8,132
Sportster/Buell Model: Sportster 883►1200
Sportster/Buell Year: 1994
IXL2Relax has disabled reputation
Default

It appears that the -69 version is listed (from suppliers) as compatible thru 1976 and the -77 began to be used in 1977 - which seems to make the -77 the proper sender to match the -77 gauge.




IXL _______ >>>> My Motorcycle Chronicles Are Here <<<<
For FREE Sportster Tech Info from the XLForum:
Explore The Sportsterpedia - The Best Kept Secret on the XLForum!
__________________
### The ride is more enjoyable to nowhere in particular! ###
Reply With Quote
  #4  
Old 12th November 2020
spiritof67 spiritof67 is offline
Biker
 
Join Date: Jan 2012
Posts: 73
Sportster/Buell Model: XLCR
Sportster/Buell Year: 1977
Reputation: 33040
spiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to behold
Default

72 Ironhead. I'll decide what I "need", thanks.

IXL, thank you for straightening that out. Makes sense now. I'll track one down.
Reply With Quote
  #5  
Old 12th November 2020
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 10,212
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 3254109
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

what is happening??
if it is what i am thinking it is, a thermo-resistor. you can test it with an vom and a pot of water on the stove. a thermometer helps to determine scaling.
btw: you can test the gauge with a pot as the sensor, all it does is adjust voltage to ground, start with a high value so as not to over load the gauge and give finer results.

Last edited by bustert; 14th November 2020 at 15:25..
Reply With Quote
  #6  
Old 12th November 2020
IXL2Relax's Avatar
IXL2Relax IXL2Relax is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2013
Location: Let Freedom Ring in PA
Posts: 8,132
Sportster/Buell Model: Sportster 883►1200
Sportster/Buell Year: 1994
IXL2Relax has disabled reputation
Default

I suspect that (in 1977) HD changed the supplier/mfr of either the sender (thermistor) or the gauge itself. Often, they are not interchangeable from different mfr, but rather operate as a set. The resistance characteristics of the thermistor are matched up to the operational characteristics of the gauge...

As I understand it, the average 'inexpensive' gauge can have wide tolerances of accuracy and are mostly used as a relative indicator of temperature rather than a scientific instrument, perhaps being set to be near accurate at the most frequent operating temperature.

- Just surmising

IXL _______ >>>> My Motorcycle Chronicles Are Here <<<<
For FREE Sportster Tech Info from the XLForum:
Explore The Sportsterpedia - The Best Kept Secret on the XLForum!
Reply With Quote
  #7  
Old 12th November 2020
mikethebike61's Avatar
mikethebike61 mikethebike61 is offline
Senior Custom Bike Builder
 
Join Date: Jan 2011
Location: Paradise
Posts: 2,750
Sportster/Buell Model: xlch
Sportster/Buell Year: 1977
Other Motorcycle Model: BMW K-1200/GT
Other Motorcycle Year: 2004
Reputation: 104360
mikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud ofmikethebike61 has much to be proud of
Default

Quote:
Originally Posted by 72 Ironhead XLH View Post
Why even bother? The only thing you need is the oil pressure light
TOO easy

Anything that is simple MUST be made more complex

Otherwise....you are not making it "BETTER"

Besides, when you know how hot that rear head gets....you can drive yourself slightly insane....kind of like the very inaccurate factory gauges in cars years back....a Ford mechanic in my home town told me in 1965 (he had worked at the dealership since 1919 when he separated from the Army) when I asked why no gauges just idiot lights that a huge % of warranty claims were due to those things giving inaccurate reading and people not know how to interpret the readings..
__________________
If loud pipes save lives....imagine what learning to ride will do for you.
Reply With Quote
  #8  
Old 25th November 2020
spiritof67 spiritof67 is offline
Biker
 
Join Date: Jan 2012
Posts: 73
Sportster/Buell Model: XLCR
Sportster/Buell Year: 1977
Reputation: 33040
spiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to beholdspiritof67 is a splendid one to behold
Default temp gauge sender

Mike the Bike, thanks for the reply. I guess some of the others here assume everything you do for a motorcycle has to be because something's wrong. Is that why I searched for the red GLASS cylinder head dots for my 'CR, or the "christmas tree" exhaust pipe clamps? Nah.

So to all, here's my thing: I ride an old Harley. I like the old Harley accessories, so I want to fit an HD accessory cylinder head temp gauge. Nota bene that I have ridden this machine in New York City traffic AND on long highway trips (for a 43 year old machine) without a temp gauge. I don't need it; I already have it and I wanted to put it on the machine. And I really didn't think so much "thinking" was going on about "need". None of us "needs" any motorcycle - we all want 'em though!
Now all I have to do is figure out where you can put the gauge on the there's-no-room-for-anything XLCR....because you can't alter the fairing, and there's damn little real estate on the handlebar!
Reply With Quote
  #9  
Old 25th November 2020
IronMick's Avatar
IronMick IronMick is offline
Rider Of The Iron Steed
 
Join Date: Dec 2003
Location: London, ON Canada
Posts: 32,520
Sportster/Buell Model: XLH
Sportster/Buell Year: 1978
Reputation: 1280341
IronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond repute
Default

I had these on my 1980...

__________________
Mick
IronHead Forever!

Visit Mick's WebSite
[And Check Out My Autobiog]
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump



All times are GMT +1. The time now is 06:58.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC