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 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 26 Minutes Ago
Replies: 22,300
Views: 2,282,159
0 100 vs 110 front tire
Last Post: Nibelungen
Posted On: 29 Minutes Ago
Replies: 121
Views: 75,438
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 44 Minutes Ago
Replies: 48,416
Views: 7,819,829
0 painthuffer's bobber build (pic heavy)
Last Post: bill smith
Posted On: 53 Minutes Ago
Replies: 199
Views: 32,840
0 old parts
Last Post: bill smith
Posted On: 1 Hour Ago
Replies: 14
Views: 421
0 Moto Iron Springer on a Stock 2001 Sportster
Last Post: FiftySixer
Posted On: 1 Hour Ago
Replies: 3
Views: 177
6 Secret photo"s of folkies loft
Last Post: DEEP DIVER
Posted On: 1 Hour Ago
Replies: 1,515
Views: 238,741
0 Starter for an XLCH
Last Post: Imaginearat
Posted On: 1 Hour Ago
Replies: 0
Views: 9
0 79-85 Breather Vent Mod - Adding a Secondary Vent Hose at 6:00 Position
Last Post: Ferrous Head
Posted On: 1 Hour Ago
Replies: 77
Views: 2,723
0 Hot Chicks on Hot Bikes
Last Post: trainman
Posted On: 7 Hours Ago
Replies: 11,085
Views: 2,184,053
0 Keep & Kill
Last Post: Crusty
Posted On: 7 Hours Ago
Replies: 18,146
Views: 1,072,334
0 Tired of hearing the Sportster is a girls bike (The one and only Girly Bike Thread)
Last Post: Nibelungen
Posted On: 7 Hours Ago
Replies: 4,019
Views: 794,944
0 cant bleed my brake please help !
Last Post: Hippysmack
Posted On: 8 Hours Ago
Replies: 26
Views: 1,099
0 so it's officially ended
Last Post: Nibelungen
Posted On: 8 Hours Ago
Replies: 40
Views: 2,221
0 Was your 1st bike a Sportster?
Last Post: Nicktater
Posted On: 8 Hours Ago
Replies: 1,030
Views: 257,121
0 Xl???
Last Post: Hippysmack
Posted On: 9 Hours Ago
Replies: 16
Views: 372
0 1972 Build thread please subscribe
Last Post: Iron Mike
Posted On: 9 Hours Ago
Replies: 95
Views: 8,297
0 Sportster drag bike
Last Post: Zip1
Posted On: 10 Hours Ago
Replies: 0
Views: 63
0 Harley quoted me $1300 for a mini ape install
Last Post: robbie202
Posted On: 10 Hours Ago
Replies: 186
Views: 42,932
0 Rear head removal on 77 Sportster
Last Post: ericfreeman
Posted On: 11 Hours Ago
Replies: 12
Views: 340
0 What gas mileage do you get for touring?
Last Post: FrankGS
Posted On: 13 Hours Ago
Replies: 149
Views: 56,470
0 '66 XLCH VM38 Conversion
Last Post: ryder rick
Posted On: 13 Hours Ago
Replies: 11
Views: 500
0 CV Carb hesitation
Last Post: IXL2Relax
Posted On: 14 Hours Ago
Replies: 7
Views: 580
0 Peanut, 3.3 or 4.5 gas tank ?
Last Post: 60Gunner
Posted On: 14 Hours Ago
Replies: 238
Views: 70,755
0 Mikuni VM-38 bogs in cool weather
Last Post: owlsplace
Posted On: 14 Hours Ago
Replies: 10
Views: 310
0 MPG HONESTLY, what do you get?
Last Post: Nicktater
Posted On: 15 Hours Ago
Replies: 613
Views: 88,234
0 Tuners
Last Post: npaisnel
Posted On: 15 Hours Ago
Replies: 1
Views: 71
0 Morning default to odometer
Last Post: Nicktater
Posted On: 16 Hours Ago
Replies: 10
Views: 367
0 Roads I'd like to ride.
Last Post: Graywolf
Posted On: 17 Hours Ago
Replies: 3,246
Views: 312,134
0 What jets do you use?
Last Post: Thack
Posted On: 18 Hours Ago
Replies: 245
Views: 83,652
More...
Members Birthdays
longrun-pa (70), goose59 (61), Stumble (56), Rowdy65 (55), peten (54), roderash (53), flightmedic (51), sportster steve (50), buscuit88 (32)
Reply
 
Share Thread Tools Display Modes
  #1  
Old 2 Weeks Ago
Greasyman Greasyman is offline
Biker
 
Join Date: Jun 2019
Posts: 72
Sportster/Buell Model: XLH
Sportster/Buell Year: 1974
Reputation: 4189
Greasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really niceGreasyman is just really nice
Default '74 hard to start, won't idle

Bike will start and rev but quickly dies and won't idle. Is also finicky about starting, likes one twist of the throttle and no choke.

Wondering what my plan of attack should be. Is it more likely to be the carb or ignition?

Bike has sat for long time, probably over a year, so maybe it has a gummed up carb (Bendix).

Ignition is Dyna S, so unless someone messed with it it's probably ok.

Plugs are new.

Bike is quite clean. Was one owner and well cared for until owner died. I bought it from a guy who owned it briefly and messed with it a bit. I've had it for a few months, it's been sitting all this time and now I'm trying to get it to run properly.

What can I do about a gummed up carb? I've never had that problem. Will running some Gumout thru it help, or will I have to take the carb apart to clean it?
Reply With Quote
  #2  
Old 2 Weeks Ago
IronMick's Avatar
IronMick IronMick is offline
Rider Of The Iron Steed
 
Join Date: Dec 2003
Location: London, ON Canada
Posts: 32,447
Sportster/Buell Model: XLH
Sportster/Buell Year: 1978
Reputation: 1213037
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

From the Stickys...

Cleaning a Carb
http://xlforum.net/forums/showthread.php?t=185361

__________________
Mick
IronHead Forever!

Visit Mick's WebSite
[And Check Out My Autobiog]
Reply With Quote
  #3  
Old 1 Week Ago
ryder rick's Avatar
ryder rick ryder rick is offline
Senior Master Custom Bike Builder
 
Join Date: Jun 2008
Location: Cornelius, OR
Posts: 9,265
Reputation: 1114996
ryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond repute
Default

Your bike must idle well in order to start well.

Sounds like you need to chase the boogers out of that carb.

Just cleaning the low speed jet may fix it.
__________________
Ryder Rick "I know right from wrong, but sometimes, wrong feels right"
Reply With Quote
  #4  
Old 1 Week Ago
Ferrous Head's Avatar
Ferrous Head Ferrous Head is online now
Blind Owl
 
Join Date: Jun 2009
Location: Sunshine Coast
Posts: 5,531
Sportster/Buell Model: XLB, XLCH, Sporton
Sportster/Buell Year: 1962
Sportster/Buell Model #2: XLCH
Sportster/Buell Year #2: 1966
Other Motorcycle Model: XLCH (Another one)
Other Motorcycle Year: 1966
Reputation: 1233851
Ferrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond reputeFerrous Head has a reputation beyond repute
Default

OK. Here's another can of worms.

For $59 you can buy a "fake" S&S Super E off Ebay.

It bolts straight on and if you pick the correct option when you buy one it will already be jetted for your bike.

If it works well you have two choices. Stick with the new "fake" or rebuild your old one.

But bolting on a new correctly jetted carb will tell you if the problem is somewhere else.
__________________
"I know only too well the evil that I propose. But my inclinations get the better of me."
Reply With Quote
  #5  
Old 1 Week Ago
doodah man's Avatar
doodah man doodah man is offline
Senior Master Custom Bike Builder
 
Join Date: May 2009
Location: 37° 25' 28" N by -80° 03' 42" W
Posts: 10,906
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1975
Reputation: 790366
doodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond reputedoodah man has a reputation beyond repute
Default

My favorite carb cleaning method, dismantle, soak in berryman's for a day or night, pour a pot of boiling water through every hole and orifice in the carb body, dry and reassemble.
__________________
"when you don't know where you're going, any road'll take you there"
Reply With Quote
  #6  
Old 1 Week Ago
Guidorey Guidorey is offline
Biker
 
Join Date: Jul 2019
Posts: 15
Sportster/Buell Model: Sportster XLH
Sportster/Buell Year: 1959
Other Motorcycle Model: Ariel Square Four
Other Motorcycle Year: 1951
Reputation: 6858
Guidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really niceGuidorey is just really nice
Default

And in addition adjust your pushrods, take the fuel tap off and make sure the gauze filter and fuel line is clean, adjust your float bowl level properly after cleaning the carb.
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 12:15.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC