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

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

Active Threads
0 Tubeless valve stem
Last Post: IXL2Relax
Posted On: 21 Minutes Ago
Replies: 4
Views: 74
0 3 pole Ig Switch numbers
Last Post: IXL2Relax
Posted On: 30 Minutes Ago
Replies: 4
Views: 42
0 Race Report (Short Video)
Last Post: simonster123
Posted On: 48 Minutes Ago
Replies: 2
Views: 32
0 Removing oil pump
Last Post: Hippysmack
Posted On: 49 Minutes Ago
Replies: 55
Views: 1,059
0 How to eliminate TSM on 2000
Last Post: IXL2Relax
Posted On: 1 Hour Ago
Replies: 11
Views: 259
0 What did you do for your sporty Today?
Last Post: Lowe175
Posted On: 1 Hour Ago
Replies: 6,146
Views: 781,228
0 no need to take off derby cover??
Last Post: mikeLI_77
Posted On: 1 Hour Ago
Replies: 9
Views: 104
0 Primary will not seal
Last Post: dodgetrucken
Posted On: 1 Hour Ago
Replies: 29
Views: 533
0 gearing is too high ?
Last Post: Ronan978
Posted On: 1 Hour Ago
Replies: 17
Views: 992
0 Hottie of the day, no nudity.
Last Post: rokytnji
Posted On: 1 Hour Ago
Replies: 12,340
Views: 1,123,890
0 Sportster Crankcase Pressure / Engine Breathing / Wetsumping and Mods
Last Post: dieselvette
Posted On: 2 Hours Ago
Replies: 125
Views: 4,276
0 1982 Ironhead Washer Part
Last Post: IronMick
Posted On: 2 Hours Ago
Replies: 8
Views: 137
0 Hawgfest Carlsbad NM
Last Post: kkbii
Posted On: 2 Hours Ago
Replies: 2
Views: 70
0 cscycle service Mt. Victory , Ohio
Last Post: dieselvette
Posted On: 2 Hours Ago
Replies: 7
Views: 234
0 Leaking Head Gasket, Loose head bolts
Last Post: Blue Scoot
Posted On: 2 Hours Ago
Replies: 6
Views: 166
0 I need 33.4 internals!
Last Post: easyspeed
Posted On: 2 Hours Ago
Replies: 0
Views: 16
0 ....1
Last Post: Graywolf
Posted On: 3 Hours Ago
Replies: 4,924
Views: 289,740
0 Starter problem
Last Post: koolbreeze
Posted On: 3 Hours Ago
Replies: 3
Views: 71
0 Peg Feelers - Yay or Nay?
Last Post: DRAGONLORD69
Posted On: 3 Hours Ago
Replies: 89
Views: 11,070
0 Clutchlite ramps with pictures
Last Post: Tomcatt
Posted On: 3 Hours Ago
Replies: 42
Views: 5,465
0 Tomatoes
Last Post: mick42
Posted On: 4 Hours Ago
Replies: 3
Views: 77
0 Morris mag wheel question
Last Post: IronMick
Posted On: 5 Hours Ago
Replies: 16
Views: 2,761
0 indicator lamps
Last Post: IronMick
Posted On: 5 Hours Ago
Replies: 1
Views: 68
0 Crusty's Travels
Last Post: Flame__
Posted On: 6 Hours Ago
Replies: 2,296
Views: 288,831
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: BWP 5p
Posted On: 6 Hours Ago
Replies: 44,396
Views: 6,974,192
0 In tank pump and filter work
Last Post: smm1200
Posted On: 7 Hours Ago
Replies: 3
Views: 186
0 what brand of spark plug do you use?
Last Post: gpydeski
Posted On: 7 Hours Ago
Replies: 308
Views: 74,476
0 Photos: King Peanut or Regular Peanut tank?
Last Post: rezchug
Posted On: 8 Hours Ago
Replies: 56
Views: 35,341
0 Motorcycle wash, would you?
Last Post: rezchug
Posted On: 8 Hours Ago
Replies: 3
Views: 206
0 Alternator/generator Conversion
Last Post: Serious Blac
Posted On: 9 Hours Ago
Replies: 141
Views: 69,063
More...
Members Birthdays
stevervp, philvet (76), outlawreb (64), rabes56 (63), Bigmatt (61), Beaker666 (55), hippiemwc (55), wumm883c (53), 2wheeltodd (52), israel (47), XRWeasel (45), Stitch (42), Dekooy (36), Titaniumrust (36), Ameri-Deutsch (35)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #31  
Old 4 Weeks Ago
Ferrous Head's Avatar
Ferrous Head Ferrous Head is offline
XL FORUM TEAM MEMBER
 
Join Date: Jun 2009
Location: Sunshine Coast
Posts: 4,360
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: 478969
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

Passenger's name is Rod and he has NO FEAR.

It happens after the straight on both Lakeside and Broadford. There are uphill right hand turns at both tracks. I've started to think it's loading up rather than running lean.
__________________
"I know only too well the evil that I propose. But my inclinations get the better of me."
Reply With Quote
  #32  
Old 4 Weeks Ago
ryder rick's Avatar
ryder rick ryder rick is offline
Senior Master Custom Bike Builder
 
Join Date: Jun 2008
Location: Cornelius, OR
Posts: 8,417
Reputation: 708293
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

That would does not seem likely to be a fuel delivery issue.
I was expecting a running out of fuel at the end of a long hard pull.

If it's loading up that would be fuel level out of control or just plain jetted rich.

Is the carb shaking? I know, it's an ironhead! But if the carb is not solidly mounted it may "flap" at certain frequencies causing flooding.
__________________
Ryder Rick "You want some mora, Dora? Right here on the flora?"
Reply With Quote
  #33  
Old 4 Weeks Ago
Ferrous Head's Avatar
Ferrous Head Ferrous Head is offline
XL FORUM TEAM MEMBER
 
Join Date: Jun 2009
Location: Sunshine Coast
Posts: 4,360
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: 478969
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

It may well be a vibration problem. Because it was running well last year. Nut at The Aussie Titles it was vibrating so bad the carburetor fell off. Twice.
But down the straight it was hammering. And running like a song.
Turned out my polyurethane engine mount bushings had reformulated themselves into dust. Top of the engine was moving 1/4-1/2 inch side to side. I thought the top engine mount had flogged out.
I'm trying some new Durathane bushes. One step down from mild steel in terms of flexibility. The same sort of stuff they use on the outside of Golf Balls.

Here's the thing. It's nearly impossible to run too rich with Methanol. If there's too much in there to burn it all it just runs out the exhaust. Seriously, that's what happens. I've seen it. Don't have a big enough main jet ? Just drop the jet out all together and run on the jet holder.

It does make more power when the mix is right though. The thing drinks Meth like a skid row bum as it is and at $2 a litre I hate seeing it run out on the ground.

The problem always occurs after I've slowed for a corner after a long straight.

If it was running out of fuel I would expect that to happen while I was still at WOT.
Reply With Quote
  #34  
Old 4 Weeks Ago
Iron Mike Iron Mike is offline
Senior Chief Master Mechanic
 
Join Date: Dec 2014
Location: Phoenix
Posts: 974
Sportster/Buell Model: xlch
Sportster/Buell Year: 1964
Sportster/Buell Model #2: XLCH IR EFI
Sportster/Buell Year #2: 1971
Other Motorcycle Model: BMW K1200RS
Other Motorcycle Year: 2001
Reputation: 135775
Iron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant futureIron Mike has a brilliant future
Default

Quote:
Originally Posted by Ferrous Head View Post
Passenger's name is Rod and he has NO FEAR.

It happens after the straight on both Lakeside and Broadford. There are uphill right hand turns at both tracks. I've started to think it's loading up rather than running lean.
Any left turns with the same symptoms? Does sound like a float control situation. Can you send a pic of the carb and fuel inlet area? Perhaps a closely mounted remote bowl can be added with a different, more stable float setup can be added? Rules?
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



Sponsored Links
All times are GMT +1. The time now is 04:44.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC