Is this normal?

Joined
May 5, 2017
Messages
24
Location
Bristol
Started the ST1100 up for the first time in the cold (well it was about -2 C) yesterday and I noticed that there was a lot of fumes/water vapour coming out under BOTH exhausts just before the silencers? Seems weird that it was on both sides. I have posted a clip here https://youtu.be/YDM9vOOY4JY
Is this normal or do i have a problem?
 
Last edited:

Mellow

Joe
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Joined
Dec 1, 2004
Messages
18,826
Age
59
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'21 BMW R1250RT
2024 Miles
000540
yes, normal.. it's to allow moisture that's built up to leak out and prevent rust.
 

ST Gui

240Robert
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Joined
Sep 12, 2011
Messages
9,262
Location
SF-Oakland CA
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ST1300, 2010
Honda has been doing that for years to prevent rusting in the mufflers. I clearly remember than on my CB750 and paid no attention since then.
 
Joined
Nov 10, 2017
Messages
1
Location
Busselton
Bike
st110 HONDA
I don,t get that problem living in Australia...but when i lived in the UK it did happen with my cb750
 
Joined
Aug 10, 2015
Messages
2,029
Location
Fort Worth, Texas
Bike
91 ST1100/06 ST1300
My 1100 and 1300 do this on cool morning starts. It does encourage me to inspect the collector condition behind the center stand. Otherwise, it's normal.
 
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