The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle General Discussion and Problems
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Sportster Motorcycle General Discussion and Problems For discussing problems about your Sportster motorcycle that don't fit anywhere else.

Active Threads
0 Ironhead engine problem?
Last Post: Ferrous Head
Posted On: 56 Minutes Ago
Replies: 36
Views: 1,551
0 1983 Roadster
Last Post: Ferrous Head
Posted On: 1 Hour Ago
Replies: 73
Views: 4,870
0 72 ih stroker advise needed
Last Post: Ferrous Head
Posted On: 1 Hour Ago
Replies: 14
Views: 633
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 2 Hours Ago
Replies: 32,996
Views: 3,882,393
0 Clutch squeal ? Bad throwout bearing ?
Last Post: Tomcatt
Posted On: 4 Hours Ago
Replies: 95
Views: 20,534
0 Acceptable Voltage Drop-Starter Circuit
Last Post: ZTatZAU
Posted On: 4 Hours Ago
Replies: 58
Views: 2,036
0 1968 ex barn dweller thread
Last Post: GA_Ironhead
Posted On: 6 Hours Ago
Replies: 205
Views: 21,026
0 Starter gaskets 74 XLH1000
Last Post: Chuckthebeatertruck
Posted On: 6 Hours Ago
Replies: 5
Views: 158
0 Hot Rods, Rat Rods, and Customs.
Last Post: Stairman
Posted On: 6 Hours Ago
Replies: 4,812
Views: 954,129
0 Video - Why Tire PSI Should Be Checked Often!
Last Post: DK Custom
Posted On: 6 Hours Ago
Replies: 0
Views: 34
0 The Strociek Project
Last Post: spacecoast
Posted On: 8 Hours Ago
Replies: 56
Views: 4,226
0 04 Sportster refurb and build.
Last Post: JimVonBaden
Posted On: 8 Hours Ago
Replies: 29
Views: 1,800
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 10 Hours Ago
Replies: 52,459
Views: 8,852,379
0 This is gonna hurt.
Last Post: cal43
Posted On: 10 Hours Ago
Replies: 9,077
Views: 2,123,207
0 Hot Chicks on Hot Bikes
Last Post: cal43
Posted On: 12 Hours Ago
Replies: 12,601
Views: 2,980,545
0 Starting?
Last Post: Briank
Posted On: 13 Hours Ago
Replies: 4
Views: 184
0 Keep & Kill
Last Post: Crusty
Posted On: 14 Hours Ago
Replies: 25,491
Views: 1,491,739
0 ....1
Last Post: Graywolf
Posted On: 14 Hours Ago
Replies: 6,287
Views: 382,278
0 Iree's late night cafe
Last Post: Graywolf
Posted On: 14 Hours Ago
Replies: 2,172
Views: 374,216
0 "The Blues" thread!
Last Post: Graywolf
Posted On: 18 Hours Ago
Replies: 1,074
Views: 148,024
0 a definitive sportster chain conversion pros and cons list
Last Post: splineman
Posted On: 19 Hours Ago
Replies: 18
Views: 528
0 HAMMERPerf 90" In the Works
Last Post: splineman
Posted On: 19 Hours Ago
Replies: 1,641
Views: 247,012
0 90" of Street-based FUN coming downunder
Last Post: Turbo Sporty 48
Posted On: 22 Hours Ago
Replies: 345
Views: 69,405
0 NOS cases
Last Post: Ferrous Head
Posted On: 23 Hours Ago
Replies: 21
Views: 795
10 1983 XR 1000 Starting Issues.
Last Post: BigMek
Posted On: 23 Hours Ago
Replies: 5
Views: 189
0 Video - Servicing the External Breather Catch Can
Last Post: DK Custom
Posted On: 1 Day Ago
Replies: 0
Views: 64
0 Food porn
Last Post: Stairman
Posted On: 1 Day Ago
Replies: 2,554
Views: 608,082
0 faulty throwout bering
Last Post: sportsterpaul
Posted On: 1 Day Ago
Replies: 18
Views: 2,954
4 Help with intermittent pinging noise at idle after warm-up
Last Post: shanneba
Posted On: 1 Day Ago
Replies: 55
Views: 3,013
0 Lets see your off season builds
Last Post: cycowrencher
Posted On: 1 Day Ago
Replies: 1,739
Views: 281,892
More...
Members Birthdays
phantom, JaggedEdge (75), toe (61), john428 (61), testuser (57), rbuier (46), Insane (44), hdtech237 (41), overland47 (40)
Reply
 
Share Thread Tools Display Modes
  #1  
Old 18th October 2021
Ludwig von Buzzthoven's Avatar
Ludwig von Buzzthoven Ludwig von Buzzthoven is offline
Flat Track Racer
 
Join Date: Dec 2014
Location: St. Louis, Misery
Posts: 203
Sportster/Buell Model: Forty-Eight
Sportster/Buell Year: 2021
Other Motorcycle Model: 2017 Softail Slim
Reputation: 30511
Ludwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to all
Default ‘21 Forty-Eight Stage 1 Hi Flow A/C backplate gasket issue

I went for a nice long ride yesterday on my ‘21 Forty-Eight with no issues. I cleaned the bike off a little, and rolled it in the garage. I just went out to plug the battery tender in and cover the bike, and I notice the gasket on the back of the induction module backplate has, well, done this:



No idea how that happened. You have to screw the A/C mounting studs all the way through, and the hole for the top right one is completely intact/no tears.

I was going to ride tomorrow. Is it ok to ride with it like this? That gasket sits in between the backplate and the induction module itself. I can’t find where anything leaked at all. But I’m wondering if it might lead to other damage (and if so, what)

Thanks in advance!
__________________
2021 Sportster Forty-Eight in Midnight Crimson
Reply With Quote
  #2  
Old 18th October 2021
John Harper's Avatar
John Harper John Harper is offline
Senior Master Custom Bike Builder
 
Join Date: Apr 2012
Posts: 3,906
Sportster/Buell Model: 1250
Sportster/Buell Year: 1991
Reputation: 2877130
John Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond repute
Default

That is weird. Perhaps a slight leak of unfiltered air into the intake system as a result? Is that an aftermarket AC? Who did the install, and when? Perhaps it's been like that for a while?

John
Reply With Quote
  #3  
Old 18th October 2021
Ludwig von Buzzthoven's Avatar
Ludwig von Buzzthoven Ludwig von Buzzthoven is offline
Flat Track Racer
 
Join Date: Dec 2014
Location: St. Louis, Misery
Posts: 203
Sportster/Buell Model: Forty-Eight
Sportster/Buell Year: 2021
Other Motorcycle Model: 2017 Softail Slim
Reputation: 30511
Ludwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to all
Default

Quote:
Originally Posted by John Harper View Post
That is weird. Perhaps a slight leak of unfiltered air into the intake system as a result? Is that an aftermarket AC? Who did the install, and when? Perhaps it's been like that for a while?

John
It’s an OEM Stage 1 kit, so it’s a Harley bracket, A/C element, and gasket. I did the install myself.
Reply With Quote
  #4  
Old 18th October 2021
John Harper's Avatar
John Harper John Harper is offline
Senior Master Custom Bike Builder
 
Join Date: Apr 2012
Posts: 3,906
Sportster/Buell Model: 1250
Sportster/Buell Year: 1991
Reputation: 2877130
John Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond reputeJohn Harper has a reputation beyond repute
Default

IDK, perhaps it slipped when you installed it, and only now noticed? Your picture looks like there is a gap. Did you use different screws? I recall a few years ago there were a lot of posts about cracked induction modules due to owners using too long bolts when doing the HD aircleaner install. My carb gasket has an extra hole for the bowl vent, but with EFI bikes I have no idea if they changed the gasket design.

Unfortunately there is only one suspect on the install.

John
Reply With Quote
  #5  
Old 18th October 2021
Ludwig von Buzzthoven's Avatar
Ludwig von Buzzthoven Ludwig von Buzzthoven is offline
Flat Track Racer
 
Join Date: Dec 2014
Location: St. Louis, Misery
Posts: 203
Sportster/Buell Model: Forty-Eight
Sportster/Buell Year: 2021
Other Motorcycle Model: 2017 Softail Slim
Reputation: 30511
Ludwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to all
Default

Quote:
Originally Posted by John Harper View Post
IDK, perhaps it slipped when you installed it, and only now noticed? Your picture looks like there is a gap. Did you use different screws? I recall a few years ago there were a lot of posts about cracked induction modules due to owners using too long bolts when doing the HD aircleaner install. My carb gasket has an extra hole for the bowl vent, but with EFI bikes I have no idea if they changed the gasket design.

Unfortunately there is only one suspect on the install.

John
I used the hardware that came with the kit. The gap that you see is where the gasket has slipped out from.
Reply With Quote
  #6  
Old 25th October 2021
Ludwig von Buzzthoven's Avatar
Ludwig von Buzzthoven Ludwig von Buzzthoven is offline
Flat Track Racer
 
Join Date: Dec 2014
Location: St. Louis, Misery
Posts: 203
Sportster/Buell Model: Forty-Eight
Sportster/Buell Year: 2021
Other Motorcycle Model: 2017 Softail Slim
Reputation: 30511
Ludwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to allLudwig von Buzzthoven is a name known to all
Default

Closing the loop on this one...

When I first installed the Stage 1 kit, I noticed a gap of about 5/8” between the induction module backplate and the module itself. Well, that’s because on the stock A/C assembly, there’s a bracket that’s used that the OEM Stage 1 kit doesn’t. But of course, the instructions that come with the kit do not mention it directly. So when I took off the kit to remove the old bracket, I guess I wasn’t paying attention, or I didn’t put Locktite back on threads, because everything was loose: breather bolts, mounting studs, etc.

My dealer had a new gasket in stock, so I replaced it, put Locktite on, tightened up everything like it’s supposed to, and rode it. No more problems.
Reply With Quote
  #7  
Old 25th October 2021
sportsterpaul's Avatar
sportsterpaul sportsterpaul is offline
XL FORUM LIFE MEMBER
 
Join Date: Jan 2009
Location: In a swamp/Michigan
Posts: 15,850
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: 15403397
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

Good for you, and thanks for coming back and sharing that you resolved your issue.
Let the bonding continue!
__________________
I.B.A.#26543,

Dads words of wisdom:”behave and if you can’t behave don’t get caught!”

The XL Forum Sportsterpedia:
http://sportsterpedia.com/doku.php/start
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 22:51.


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