Instrument Cluster Fogging Issue
Tourer
Joined: Jan 2023
Posts: 452
Likes: 305
From: New Zealand
I had the foggy speedo on my previous '20 LRS my '22 LRS has not done it yet finger's crossed, this should not happen at all on a late model bike and HD not wanting to know about fixing it is a disgrace IMO
Intermediate
Joined: Oct 2021
Posts: 25
Likes: 29
From: Bremerton, Wa
I bought a 1999 Sportster 1200 Custom new in 98. Speedo fogged up from time to time the entire time I owned it(23 years). I now own a 2020 Softail Slim and it does it, too. No warranty on the Slim so I guess I'll just drill it. Harley could fix this problem if they really wanted to but we all just keep accepting it. Harley knows this. Until it starts hurting their bottom line they're not going to fix it.
Club Member
Joined: Oct 2022
Posts: 652
Likes: 510
From: United Kingdom
Cruiser
Joined: Jan 2023
Posts: 158
Likes: 57
From: Sh*tty of Lost Angels
Just managed to pickup a brand new speedometer (70900684B) for Ł180 delivered.
Question is....
Do I need to have it installed by my AuthorizedStealer Dealer?
Question is....
Do I need to have it installed by my Authorized
Advanced
Joined: Aug 2021
Posts: 69
Likes: 11
From: Wisconsin
When mine was replaced, the B trip odometer read backwards for about 25 miles then worked as normal. Called the dealer about it and was told it was normal, it was marrying itself to the bike. They also said it was plug and play. No special set up.
Stage III
Joined: Dec 2022
Posts: 3
Likes: 4
From: South Carolina
Problem solved drilled holes
I have the original gauge in my 2018 Heritage classic. I (carefully) hand drilled 5 holes in the back of the gauge with a 3/32 bit. I went riding yesterday and the old gage was fogging at the bottom . I ran 300 miles and couldn't read the LCD . After drilling the same gage today it doesn't fog at all after riding 
Road Captain
Joined: Nov 2017
Posts: 575
Likes: 263
From: Spokane, WA
Drilling works, but you only need 1 or 2 tiny holes, #60 or 1mm. You are only trying to balance the barometric pressure in and outside of the gauge.
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Stage III
Joined: Dec 2022
Posts: 3
Likes: 4
From: South Carolina
Good to know about barometric pressure balance being the issue. Less holes = less chance of ruining the gage and water getting in. Thanks for the tips without these treads my gage would be fogged up right now ...
Seasoned HDF Member
Joined: Jan 2011
Posts: 157,459
Likes: 57,015
From: Michigan 15 Minutes East Of Hell
I'm sure that barometric pressure is the problem ... I'm no scientist and I'm sure that all the other manufacturers have no problem with this ... Barometric Pressure ? ... Drilling holes may resolve the issue but do little to address the original cause ... Does HD have drills ?
