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 Late 84-85 primary cover to 86-90 cover??
Last Post: 85IRONDIRT
Posted On: 1 Minute Ago
Replies: 43
Views: 2,140
0 Keep & Kill
Last Post: Crusty
Posted On: 1 Minute Ago
Replies: 21,406
Views: 1,265,628
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: cal43
Posted On: 23 Minutes Ago
Replies: 50,364
Views: 8,271,197
0 This is gonna hurt.
Last Post: Stairman
Posted On: 23 Minutes Ago
Replies: 8,453
Views: 1,873,064
0 Corona Virus
Last Post: rejeanprimeau
Posted On: 42 Minutes Ago
Replies: 1,643
Views: 160,886
0 2018 Iron 1275 Project
Last Post: Highly-Dangerous
Posted On: 51 Minutes Ago
Replies: 32
Views: 3,579
0 ....1
Last Post: Highly-Dangerous
Posted On: 1 Hour Ago
Replies: 6,034
Views: 357,760
0 yost power tube guy
Last Post: Serious Blac
Posted On: 3 Hours Ago
Replies: 93
Views: 5,199
0 Bought a 48 with apes
Last Post: harley506d
Posted On: 3 Hours Ago
Replies: 2
Views: 59
0 Hot Rods, Rat Rods, and Customs.
Last Post: cal43
Posted On: 3 Hours Ago
Replies: 4,476
Views: 736,888
0 1994 883 xlh wiring
Last Post: cal43
Posted On: 4 Hours Ago
Replies: 1
Views: 61
0 Hottie of the day, no nudity.
Last Post: cal43
Posted On: 4 Hours Ago
Replies: 28,416
Views: 3,025,209
0 Hot Chicks on Hot Bikes
Last Post: cal43
Posted On: 4 Hours Ago
Replies: 11,898
Views: 2,530,293
0 Hammer 1275 clang noise, slow oil feed, kinked crankcase vent.
Last Post: BestCoastXL
Posted On: 6 Hours Ago
Replies: 479
Views: 15,778
0 Iree's late night cafe
Last Post: ~Grind~
Posted On: 7 Hours Ago
Replies: 1,873
Views: 280,345
0 KT - 2021 - You're In It Now
Last Post: IXL2Relax
Posted On: 8 Hours Ago
Replies: 21
Views: 2,152
0 WTB mid-controls for 2002 XLH1200C
Last Post: stevehendo
Posted On: 8 Hours Ago
Replies: 0
Views: 28
0 2002 XLH1200C what foot controls are stock
Last Post: stevehendo
Posted On: 8 Hours Ago
Replies: 0
Views: 83
0 Rubbermount oil consumption poll
Last Post: Hippysmack
Posted On: 8 Hours Ago
Replies: 232
Views: 124,193
0 Magneto Sportster's 1964 XLH Restoration Project
Last Post: brucstoudt
Posted On: 9 Hours Ago
Replies: 59
Views: 7,983
0 WTB 04-06 intake manifold
Last Post: aswracing
Posted On: 11 Hours Ago
Replies: 11
Views: 331
0 Kick starter slips
Last Post: farmersemail
Posted On: 11 Hours Ago
Replies: 7
Views: 123
0 Steering Neck Tapered Bearin Kit
Last Post: randy3934
Posted On: 11 Hours Ago
Replies: 2
Views: 216
0 Caliper Rebuild....... Parts? Tools? Experiences?
Last Post: Rangry64
Posted On: 13 Hours Ago
Replies: 6
Views: 258
0 Swing arm bearing change
Last Post: brucstoudt
Posted On: 14 Hours Ago
Replies: 8
Views: 487
0 1970 XLH smoke from rocker box gasket
Last Post: Rolschnee
Posted On: 15 Hours Ago
Replies: 12
Views: 531
0 Pinion and sprocket side bearing questions
Last Post: GA_Ironhead
Posted On: 15 Hours Ago
Replies: 6
Views: 382
0 dragging a parachute
Last Post: bustert
Posted On: 16 Hours Ago
Replies: 26
Views: 1,200
7 Hi from California
Last Post: Lester Patto
Posted On: 17 Hours Ago
Replies: 11
Views: 312
0 Backfiring
Last Post: IXL2Relax
Posted On: 17 Hours Ago
Replies: 37
Views: 2,223
More...
Members Birthdays
leprechaun50 (71), Hammerhead (58), c.wissler (51), kjy026 (49), RoseLady (49), Jayjunior (44), hradek422 (33)
Reply
 
Share Thread Tools Display Modes
  #1  
Old 4th October 2016
randy3934's Avatar
randy3934 randy3934 is offline
Master Custom Bike Builder
 
Join Date: Dec 2011
Location: under a roof
Posts: 3,034
Sportster/Buell Model: xlh 1000 69 79 xlch
Sportster/Buell Year: 1977
Sportster/Buell Model #2: 80 FXE 82FLH 83FXR
Other Motorcycle Model: 78FLH 79xlch 96xl 79xlh
Reputation: 187591
randy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant future
Default 36 mm zenith bendix

anyone running a 36mm bendix zenith on a 1,000 cc ironhead? went to rebuild one of my swap meet finds and discovered it's 36mm. will it run good?
__________________
I'm not a complete idiot, some parts are missing. not enough room to list all my harleys.
Reply With Quote
  #2  
Old 4th October 2016
randy3934's Avatar
randy3934 randy3934 is offline
Master Custom Bike Builder
 
Join Date: Dec 2011
Location: under a roof
Posts: 3,034
Sportster/Buell Model: xlh 1000 69 79 xlch
Sportster/Buell Year: 1977
Sportster/Buell Model #2: 80 FXE 82FLH 83FXR
Other Motorcycle Model: 78FLH 79xlch 96xl 79xlh
Reputation: 187591
randy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant future
Default

Also, anyone looking for any 79 xlh parts? picked up a pair for cheap with titles.
Reply With Quote
  #3  
Old 4th October 2016
needspeed needspeed is offline
XL FORUM LIFE MEMBER
 
Join Date: May 2014
Posts: 1,391
Sportster/Buell Model: xlh
Sportster/Buell Year: 1974
Reputation: 951513
needspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond repute
Default

I can tell you about some of the differences between the 38 and 36 bendix that I have.
The 38 is what came stock on a '74 xlh. The 36 was givin to me and I don't know where it came from and I've never used it.

Aside from the venturi size the other main difference that might affect the way it runs is the number of secondary idle discharge ports. These are the holes that get uncovered by the throttle plate at part throttle settings.

The 38 has 3.(in addition to the idle adjustment screw hole).
The 36 has 2.(in addition to the idle adjustment screw hole).

The air cleaner screw bosses on the 36 are smaller and I've heard prone to breaking.



The 36 does not have a bowl vent hole that the 38 has. I can't see why it would need it though.





The 36 should have more air velocity thru the venturi but flow less total CFM.

So to answer your question- will it run good?
Sorry, I don't know.
Reply With Quote
  #4  
Old 4th October 2016
brianbbs67's Avatar
brianbbs67 brianbbs67 is offline
Reformed Savant
 
Join Date: Jul 2011
Posts: 9,457
Sportster/Buell Model: xlch
Sportster/Buell Year: 1961
Sportster/Buell Model #2: XLCH
Sportster/Buell Year #2: 1970
Other Motorcycle Model: XL CE Tribute
Other Motorcycle Year: 1977
Reputation: 1049105
brianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond reputebrianbbs67 has a reputation beyond repute
Default

It was only standard equipment for a year. Must have been a reason. Could your bike run fine on it? Probably.
Reply With Quote
  #5  
Old 4th October 2016
Racepres's Avatar
Racepres Racepres is offline
Master Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 3,035
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1977
Reputation: 56966
Racepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to behold
Default

smaller venturi equals better throttle response, but, a Possible [possible] loss of top end [WFO only] performance.
For putting about, I always choose a Smaller [relatively] venturi. which, in todays world a 38 already is.
YMMV
But, I bet most would Never know the Difference...Honestly.
Reply With Quote
  #6  
Old 4th October 2016
Sprtstr1200s's Avatar
Sprtstr1200s Sprtstr1200s is offline
XL FORUM TEAM MEMBER
 
Join Date: Aug 2016
Location: Space Coast
Posts: 812
Sportster/Buell Model: Sportster XL1200s
Sportster/Buell Year: 1999
Reputation: 559600
Sprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond reputeSprtstr1200s has a reputation beyond repute
Default

Quote:
Originally Posted by needspeed View Post
I can tell you about some of the differences between the 38 and 36 bendix that I have.
The 38 is what came stock on a '74 xlh. The 36 was givin to me and I don't know where it came from and I've never used it.

Aside from the venturi size the other main difference that might affect the way it runs is the number of secondary idle discharge ports. These are the holes that get uncovered by the throttle plate at part throttle settings.

The 38 has 3.(in addition to the idle adjustment screw hole).
The 36 has 2.(in addition to the idle adjustment screw hole).

The air cleaner screw bosses on the 36 are smaller and I've heard prone to breaking.



The 36 does not have a bowl vent hole that the 38 has. I can't see why it would need it though.





The 36 should have more air velocity thru the venturi but flow less total CFM.

So to answer your question- will it run good?
Sorry, I don't know.
Idle discharge ports/ A friend had a new '72 XLH, his Bendix had an "A" stamped on it. I had a new '73 XLCH and had a "B" stamped on it part number. His carb only had 2 ports, mine had 4 ports if I remember correctly.
Reply With Quote
  #7  
Old 21st September 2019
randy3934's Avatar
randy3934 randy3934 is offline
Master Custom Bike Builder
 
Join Date: Dec 2011
Location: under a roof
Posts: 3,034
Sportster/Buell Model: xlh 1000 69 79 xlch
Sportster/Buell Year: 1977
Sportster/Buell Model #2: 80 FXE 82FLH 83FXR
Other Motorcycle Model: 78FLH 79xlch 96xl 79xlh
Reputation: 187591
randy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant future
Default

this post was from a few years back hahaha, I did use that carb, it has adjustable main, I put it on a 74" shovelhead, runs just fine, starts really easy with kicker, don't notice any power loss at WOT, runs right up to 5,550 rpm and still climbing in 4th. should run fine on a ironhead.
Reply With Quote
  #8  
Old 21st September 2019
curiousgeorge curiousgeorge is offline
Master Mechanic
 
Join Date: May 2013
Posts: 267
Sportster/Buell Model: XLH
Sportster/Buell Year: 67
Reputation: 31040
curiousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to allcuriousgeorge is a name known to all
Default

What main and idle tube did you use or what was in it?
Reply With Quote
  #9  
Old 22nd September 2019
Kingrabbit's Avatar
Kingrabbit Kingrabbit is offline
Greasemonkey
 
Join Date: May 2012
Location: Halifax NS
Posts: 116
Sportster/Buell Model: XLH
Sportster/Buell Year: 1973
Other Motorcycle Model: Honda CB550
Other Motorcycle Year: 1974
Reputation: 11
Kingrabbit is an unknown quantity at this point
Default 36mm Bendix



I have a Bendix 36mm with 4 holes on my 73 XLH.
Reply With Quote
  #10  
Old 22nd September 2019
randy3934's Avatar
randy3934 randy3934 is offline
Master Custom Bike Builder
 
Join Date: Dec 2011
Location: under a roof
Posts: 3,034
Sportster/Buell Model: xlh 1000 69 79 xlch
Sportster/Buell Year: 1977
Sportster/Buell Model #2: 80 FXE 82FLH 83FXR
Other Motorcycle Model: 78FLH 79xlch 96xl 79xlh
Reputation: 187591
randy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant futurerandy3934 has a brilliant future
Default

Quote:
Originally Posted by curiousgeorge View Post
What main and idle tube did you use or what was in it?
it has adjustable main
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 12:11.


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