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 > Frame Mount EVO Sportster Talk (1986-2003 models)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Active Threads
0 04 Sportster refurb and build.
Last Post: ChinCactus
Posted On: 25 Minutes Ago
Replies: 28
Views: 1,754
0 72 ih stroker advise needed
Last Post: Chuckthebeatertruck
Posted On: 40 Minutes Ago
Replies: 12
Views: 543
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 50 Minutes Ago
Replies: 32,992
Views: 3,879,762
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 59 Minutes Ago
Replies: 52,459
Views: 8,850,188
0 This is gonna hurt.
Last Post: cal43
Posted On: 1 Hour Ago
Replies: 9,077
Views: 2,122,969
0 Hot Chicks on Hot Bikes
Last Post: cal43
Posted On: 3 Hours Ago
Replies: 12,601
Views: 2,978,540
0 Ironhead engine problem?
Last Post: Congojack
Posted On: 3 Hours Ago
Replies: 32
Views: 1,465
0 Starting?
Last Post: Briank
Posted On: 4 Hours Ago
Replies: 4
Views: 157
0 Keep & Kill
Last Post: Crusty
Posted On: 5 Hours Ago
Replies: 25,491
Views: 1,491,541
0 ....1
Last Post: Graywolf
Posted On: 5 Hours Ago
Replies: 6,287
Views: 382,250
0 Iree's late night cafe
Last Post: Graywolf
Posted On: 5 Hours Ago
Replies: 2,172
Views: 372,975
0 "The Blues" thread!
Last Post: Graywolf
Posted On: 8 Hours Ago
Replies: 1,074
Views: 147,699
0 Acceptable Voltage Drop-Starter Circuit
Last Post: The Doctor71
Posted On: 10 Hours Ago
Replies: 57
Views: 1,994
0 a definitive sportster chain conversion pros and cons list
Last Post: splineman
Posted On: 10 Hours Ago
Replies: 18
Views: 492
0 1983 Roadster
Last Post: sportsterpaul
Posted On: 10 Hours Ago
Replies: 70
Views: 4,558
0 HAMMERPerf 90" In the Works
Last Post: splineman
Posted On: 10 Hours Ago
Replies: 1,641
Views: 246,607
0 Starter gaskets 74 XLH1000
Last Post: Spent Brass
Posted On: 11 Hours Ago
Replies: 4
Views: 112
0 The Strociek Project
Last Post: Ferrous Head
Posted On: 11 Hours Ago
Replies: 55
Views: 4,175
0 90" of Street-based FUN coming downunder
Last Post: Turbo Sporty 48
Posted On: 12 Hours Ago
Replies: 345
Views: 69,387
0 NOS cases
Last Post: Ferrous Head
Posted On: 14 Hours Ago
Replies: 21
Views: 766
10 1983 XR 1000 Starting Issues.
Last Post: BigMek
Posted On: 14 Hours Ago
Replies: 5
Views: 177
0 Video - Servicing the External Breather Catch Can
Last Post: DK Custom
Posted On: 16 Hours Ago
Replies: 0
Views: 24
0 Food porn
Last Post: Stairman
Posted On: 17 Hours Ago
Replies: 2,554
Views: 607,125
0 faulty throwout bering
Last Post: sportsterpaul
Posted On: 18 Hours Ago
Replies: 18
Views: 2,902
0 Clutch squeal ? Bad throwout bearing ?
Last Post: sportsterpaul
Posted On: 18 Hours Ago
Replies: 93
Views: 20,484
4 Help with intermittent pinging noise at idle after warm-up
Last Post: shanneba
Posted On: 19 Hours Ago
Replies: 55
Views: 3,006
0 Lets see your off season builds
Last Post: cycowrencher
Posted On: 21 Hours Ago
Replies: 1,739
Views: 281,854
0 1983 motor in 1976 frame
Last Post: Racepres
Posted On: 22 Hours Ago
Replies: 1
Views: 139
0 video & pics
Last Post: cal43
Posted On: 23 Hours Ago
Replies: 566
Views: 59,589
0 Deer hunting at stairman's.
Last Post: Stairman
Posted On: 1 Day Ago
Replies: 53
Views: 4,336
More...
Members Birthdays
phantom, JaggedEdge (75), toe (61), john428 (61), testuser (57), rbuier (46), Insane (44), hdtech237 (41), overland47 (40)
Tags
cv carb, engine missing, jetting, super e carb

Reply
 
Share Thread Tools Display Modes
  #11  
Old 4 Weeks Ago
Racepres's Avatar
Racepres Racepres is offline
Master Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 3,048
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

A Real exhaust... the carb won't have much effect with 20" dumps... lollypops or no.. Lolly's are strictly a band aid... Looks, Loud, Performance, Pick One... maybe 2...Never 3
Nothing in the world that the CV won't do... maybe better, on a stock Evo Sporty
Reply With Quote
  #12  
Old 4 Weeks Ago
Gulf Coaster's Avatar
Gulf Coaster Gulf Coaster is offline
XL FORUM TEAM MEMBER
 
Join Date: Nov 2019
Location: Speed trap between Pensacola and Pensacola Beach
Posts: 77
Sportster/Buell Model: XLH Ironhead 1000 bobber
Sportster/Buell Year: 1982
Sportster/Buell Model #2: XL1200C, chopped
Sportster/Buell Year #2: 2003
Other Motorcycle Model: Honda Goldwing
Other Motorcycle Year: 2003
Reputation: 66658
Gulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud of
Default

Quote:
Originally Posted by Racepres View Post
A Real exhaust... the carb won't have much effect with 20" dumps... lollypops or no.. Lolly's are strictly a band aid... Looks, Loud, Performance, Pick One... maybe 2...Never 3
Nothing in the world that the CV won't do... maybe better, on a stock Evo Sporty
Oddly enough, I found the problem and took care of it. I have no doubt that properly engineered pipes with well-designed mufflers would improve the performance, but that's not what I have. It turns out that the previous owner over jetted the carb by two sizes, and that is what was causing the breaking up. I bought a stock main jet and installed it, and my breaking up issue is completely gone. There is a little deceleration popping, but I expect the DK "Thunder Torque" inserts to solve that, once they get here. Is the performance as good as stock? Possibly not, but it is really good, so I'm happy.
Reply With Quote
  #13  
Old 4 Weeks Ago
Gulf Coaster's Avatar
Gulf Coaster Gulf Coaster is offline
XL FORUM TEAM MEMBER
 
Join Date: Nov 2019
Location: Speed trap between Pensacola and Pensacola Beach
Posts: 77
Sportster/Buell Model: XLH Ironhead 1000 bobber
Sportster/Buell Year: 1982
Sportster/Buell Model #2: XL1200C, chopped
Sportster/Buell Year #2: 2003
Other Motorcycle Model: Honda Goldwing
Other Motorcycle Year: 2003
Reputation: 66658
Gulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud of
Default Proper jetting cured the issue

Quote:
Originally Posted by Gulf Coaster View Post
Thanks for the reply. Low speed jet is a 44 and the main is a 185. When I first opened it up there was a 180 in it. I didn't know if that had been a change by the PO when he put the pipes on, or if that had been a mod. I put a thin washer on the slide needle to open the main jet a little sooner, but I don't know if (a) it did anything or if (b) it helped anything. I'm not sure what you mean by the position of the clip on the needle valve. It has the standard wire retainer to hold it on the float tab, but nothing that you could change the position of. Anyway, The shop manual specifies a 170 jet, as you mentioned, and the video that decman provided suggests that the bike is running too rich due to reversion, not too lean. The plugs also read a little rich. I ordered a 170 jet to try again. I'll pull that washer at the same time. I'm also going to get a set of lollipops and see what that does.
The stock 170 jet is what it needed. Cured the breaking up issue completely!
Reply With Quote
  #14  
Old 4 Weeks Ago
Tomcatt Tomcatt is offline
Dazed & Confused
 
Join Date: Feb 2019
Location: Never Never Land
Posts: 2,486
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2017
Other Motorcycle Model: BMW R9T
Other Motorcycle Year: 2015
Reputation: 3105395
Tomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond repute
Default

Quote:
Originally Posted by Gulf Coaster View Post
The stock 170 jet is what it needed. Cured the breaking up issue completely!
That's fine but you're probably too lean now at higher rpm when the slide is fully lifted.

How was the breaking up issue before you shimmed the needle? Did raising the needle make it better or worse. I would suspect it made it worse.
__________________
2017 XL1200C in SE Wisconsin, USA

Last edited by Tomcatt; 4 Weeks Ago at 22:14..
Reply With Quote
  #15  
Old 4 Weeks Ago
Gulf Coaster's Avatar
Gulf Coaster Gulf Coaster is offline
XL FORUM TEAM MEMBER
 
Join Date: Nov 2019
Location: Speed trap between Pensacola and Pensacola Beach
Posts: 77
Sportster/Buell Model: XLH Ironhead 1000 bobber
Sportster/Buell Year: 1982
Sportster/Buell Model #2: XL1200C, chopped
Sportster/Buell Year #2: 2003
Other Motorcycle Model: Honda Goldwing
Other Motorcycle Year: 2003
Reputation: 66658
Gulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud ofGulf Coaster has much to be proud of
Default

I don't really know. I broke the rule of only changing one thing at a time and I shimmed the needle when I but the larger jet in. Now I have the stock jet in and things seem fine. The plugs, which had looked dark, are now in a better color range. Definitely not too light, though. I'm going to remove the shim and do another run and see how it runs/feels and how the plugs look. Seems like I'm getting close, though! Ironic to think I've gone through all this just to find out what I really needed was a stock set up.
Reply With Quote
  #16  
Old 4 Weeks Ago
IXL2Relax's Avatar
IXL2Relax IXL2Relax is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2013
Location: Let Freedom Ring in PA
Posts: 9,001
Sportster/Buell Model: Sportster 883►1200
Sportster/Buell Year: 1994
IXL2Relax has disabled reputation
Default

Quote:
Originally Posted by Gulf Coaster View Post
The stock 170 jet is what it needed. Cured the breaking up issue completely!
So you currently are running a 44 Slow Jet & 170 Main Jet, right?

Have you used the Idle Drop Method to set the Idle Mixture Screw? Have you reset the throttle plate to make sure the idle is running on the Idle Jet & not the Transfer Ports.

Now is the time to get all the settings right.
Here's the Sportsterpedia page on adjusting the CV40 carb:
http://sportsterpedia.com/doku.php/techtalk:evo:carb02

Glad you're making progress.

IXL _______ >>>> My Motorcycle Chronicles Are Here <<<<
For Sportster Tech Info:
Ride The Sportsterpedia - A Toll-Free XLForum Information Highway!
__________________
### The ride is more enjoyable to nowhere in particular! ###
Reply With Quote
  #17  
Old 4 Days Ago
gary59 gary59 is offline
Biker
 
Join Date: Feb 2021
Posts: 59
Sportster/Buell Model: 883
Sportster/Buell Year: 1998
Reputation: 620
gary59 will become famous soon enoughgary59 will become famous soon enoughgary59 will become famous soon enoughgary59 will become famous soon enoughgary59 will become famous soon enoughgary59 will become famous soon enough
Default

I would order a velocity needle from cv performance and not worry about clips and washers. I run a 170/45 jetting and very happy. I am about at sea level. The idle mixture screw should be about 2.5 turns out.
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 13:33.


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