The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Intake and Exhaust > Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

Active Threads
0 Crank failure and ?? killed my 1275 Hammer Build
Last Post: npaisnel
Posted On: 1 Minute Ago
Replies: 125
Views: 2,402
0 Vintage tires
Last Post: Ferrous Head
Posted On: 7 Minutes Ago
Replies: 7
Views: 140
0 Iree's late night cafe
Last Post: ~Grind~
Posted On: 11 Minutes Ago
Replies: 1,678
Views: 225,600
0 Hottie of the day, no nudity.
Last Post: ronccc
Posted On: 55 Minutes Ago
Replies: 20,989
Views: 2,157,127
0 I need to polarize the generator each time I start the bike
Last Post: randy3934
Posted On: 1 Hour Ago
Replies: 4
Views: 181
9 1970 XLCH Project Not starting
Last Post: Ferrous Head
Posted On: 1 Hour Ago
Replies: 4
Views: 100
0 ....1
Last Post: Graywolf
Posted On: 2 Hours Ago
Replies: 5,706
Views: 330,022
0 Corona Virus
Last Post: BKB
Posted On: 2 Hours Ago
Replies: 778
Views: 64,699
0 Brand new 2020 XL1200NS
Last Post: Hippysmack
Posted On: 2 Hours Ago
Replies: 2
Views: 66
0 Remember these?
Last Post: bill smith
Posted On: 4 Hours Ago
Replies: 17
Views: 708
0 What Sort Of Sporty Have You Got?
Last Post: rokytnji
Posted On: 4 Hours Ago
Replies: 1,140
Views: 341,345
6 Happy Birthday Iree!!!
Last Post: Steve9
Posted On: 4 Hours Ago
Replies: 7
Views: 81
0 ‘79-81’ rear wheel offset or spacing ing issue?
Last Post: Ferrous Head
Posted On: 5 Hours Ago
Replies: 1
Views: 85
0 CV carb running way rich!
Last Post: John Harper
Posted On: 5 Hours Ago
Replies: 6
Views: 322
4 1977 ironhead frame modification help
Last Post: mikethebike61
Posted On: 5 Hours Ago
Replies: 6
Views: 542
0 This week on Craig's list
Last Post: Ferrous Head
Posted On: 6 Hours Ago
Replies: 4,764
Views: 639,552
0 1275 Map For Thundermax...Need Help
Last Post: XL1275
Posted On: 7 Hours Ago
Replies: 0
Views: 49
5 Accidentally put Synthetic auto oil and caused engine to seize
Last Post: Hippysmack
Posted On: 7 Hours Ago
Replies: 32
Views: 1,549
0 Down on oil
Last Post: Hippysmack
Posted On: 8 Hours Ago
Replies: 48
Views: 1,850
0 Sticky Ironhead trans
Last Post: Hap
Posted On: 8 Hours Ago
Replies: 4
Views: 296
0 Food porn
Last Post: Graywolf
Posted On: 8 Hours Ago
Replies: 2,038
Views: 396,470
0 Rocker box leak on rear cylinder after 16 years (2004) old bike
Last Post: rocketmangb
Posted On: 9 Hours Ago
Replies: 35
Views: 780
0 Koso hd-01-04 2014+
Last Post: SonWon
Posted On: 10 Hours Ago
Replies: 7
Views: 309
0 Hot Rods, Rat Rods, and Customs.
Last Post: Stairman
Posted On: 11 Hours Ago
Replies: 4,162
Views: 601,267
0 Rear lights
Last Post: IXL2Relax
Posted On: 12 Hours Ago
Replies: 3
Views: 202
3 Wtb, Wts, Wtt, Wtg (Ironhead)
Last Post: ironsquirrel
Posted On: 12 Hours Ago
Replies: 30
Views: 262,153
0 Magneto Sportster's Original Paint 1965 XLCH Project
Last Post: Tim The Grim
Posted On: 12 Hours Ago
Replies: 14
Views: 415
0 New to Harley - 2007 883R
Last Post: Mike1nw
Posted On: 14 Hours Ago
Replies: 17
Views: 708
0 Cancelling auto renew
Last Post: Billy1200
Posted On: 14 Hours Ago
Replies: 4
Views: 141
0 Clutch release mechanism
Last Post: Rioo
Posted On: 15 Hours Ago
Replies: 3
Views: 237
More...
Members Birthdays
Reply
 
Share Thread Tools Display Modes
  #1  
Old 1 Week Ago
Mission1's Avatar
Mission1 Mission1 is offline
Flat Track Racer
 
Join Date: Mar 2020
Location: Cleveland
Posts: 223
Sportster/Buell Model: XL 1200
Sportster/Buell Year: 1988
Reputation: 4424
Mission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really nice
Default CV Carb hesitation

Because I am used to the Bendix and the Super E carbs, how do we adjust the CV carbs?! I’m getting major hesitation at start up!
__________________
Mark Cunningham 88’ 883/1200
Reply With Quote
  #2  
Old 1 Week Ago
sportsterpaul's Avatar
sportsterpaul sportsterpaul is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2009
Location: In a swamp/Michigan
Posts: 14,575
Sportster/Buell Model: XL1460C
Sportster/Buell Year: 2000
Sportster/Buell Model #2: XL1200R
Sportster/Buell Year #2: 2006
Other Motorcycle Model: XL1200R
Other Motorcycle Year: 2004
Reputation: 11909948
sportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond reputesportsterpaul has a reputation beyond repute
Default

There are many threads and posts on site with all the answers you’re liable to need. Also, peek into the C.V. Carb section in “Sportsterpedia” a most excellant resource. There’s a link in my signature.
__________________
I.B.A.#26543, Growing old-Mandatory/ Growing up-optional. Men do not quit playing because they get old, they get old because they stop playing!

The XL Forum Sportsterpedia:
http://sportsterpedia.com/doku.php/start
Reply With Quote
  #3  
Old 1 Week Ago
Billy1200's Avatar
Billy1200 Billy1200 is offline
Know It All
 
Join Date: Dec 2019
Posts: 199
Sportster/Buell Model: XL1200 C
Sportster/Buell Year: 2002
Other Motorcycle Model: Xvs650 dragstar
Other Motorcycle Year: 1999
Reputation: 58718
Billy1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to beholdBilly1200 is a splendid one to behold
Default

As above , I'v had 2 sporties now both with carbs set up wrong .. It took me a while of asking and reading for it to click .. I'v found first thing is make sure the throttle blade is in its closed position and work from there ... Both my sporties were open too far so the mixture screw wasn't doing much but as soon as I had it running on idle circuit the difference in adjustments was much easier ( for that circuit ) .

You find the transfer ports " kick in" when they should

Not a tech answer but I'v found I'm a lot more confident knowing where to start and work up through the circuits ...
__________________
2002 XL 1200C
Reply With Quote
  #4  
Old 1 Week Ago
IXL2Relax's Avatar
IXL2Relax IXL2Relax is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2013
Location: Let Freedom Ring in PA
Posts: 7,706
Sportster/Buell Model: Sportster 883►1200
Sportster/Buell Year: 1994
IXL2Relax has disabled reputation
Default

The Sportsterpedia has extensive information about tuning the CV40 Carb:
http://sportsterpedia.com/doku.php/techtalk:evo:carb02

You have to read it over carefully to understand all that is there and check everything properly from the tank all the way to the cylinders...


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
  #5  
Old 1 Week Ago
Mission1's Avatar
Mission1 Mission1 is offline
Flat Track Racer
 
Join Date: Mar 2020
Location: Cleveland
Posts: 223
Sportster/Buell Model: XL 1200
Sportster/Buell Year: 1988
Reputation: 4424
Mission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really niceMission1 is just really nice
Default

So now the CV carb’s over flow is pouring fuel upon turning the gas on?! Is the float sticking?!
Reply With Quote
  #6  
Old 6 Days Ago
rokytnji's Avatar
rokytnji rokytnji is offline
XL FORUM LIFE MEMBER
 
Join Date: Apr 2016
Location: Texas/Mexican Border
Posts: 2,950
Sportster/Buell Model: xls 1000
Sportster/Buell Year: 1980
Sportster/Buell Model #2: xls 1000
Sportster/Buell Year #2: 1983
Other Motorcycle Model: 1200 Chopper XL
Other Motorcycle Year: 1990
Reputation: 5399606
rokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond reputerokytnji has a reputation beyond repute
Default

Float height setting is done at a angle.

Youtube videos show how a block of wood can be cut at angle to lean the carb against and check the float level.
__________________
*Reference the Sportsterpedia! For Helpful info on your scooter.

I'm not outa place. I'm from outer space.

Traveled to
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 06:36.


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