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Exhaust moisture vent holes.
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Topic: Exhaust moisture vent holes. (Read 1181 times)
yrunvs
Member
Posts: 205
Prior Lake, Minnesota
Exhaust moisture vent holes.
«
on:
June 13, 2020, 07:36:18 AM »
I'm still new and learning.
Near where the 3 pipes meet the tailpipe there appears to be small moisture vent holes as I discovered this morning when I thought I had fuel leaks, it appeared as fuel spray on the floor. This is the first time I have noticed any moisture coming out of them. When I put my hand under them I feel steady puffs of air is that normal? Sometimes the exhaust gives a little pop from that area. Any insight is appreciated.
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I'm no gynecologist but hey I'll take a look!
MarkT
Member
Posts: 5196
VRCC #437 "Form follows Function"
Colorado Front Range - elevation 2.005 km
Re: Exhaust moisture vent holes.
«
Reply #1 on:
June 13, 2020, 07:51:12 AM »
It's a condenscent vent put there by Honda. Normal.
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Vietnam-474 TFW Takhli 9-12/72 Linebckr II;307 SBW U-Tapao 05/73-4
yrunvs
Member
Posts: 205
Prior Lake, Minnesota
Re: Exhaust moisture vent holes.
«
Reply #2 on:
June 13, 2020, 08:37:45 AM »
Thanks. Nice to know the puffs of air are normal.
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I'm no gynecologist but hey I'll take a look!
Davemn
Member
Posts: 830
Minnetrista, Minnesota
Re: Exhaust moisture vent holes.
«
Reply #3 on:
June 14, 2020, 01:36:13 PM »
It’s possible the welds broke where the 3 pipes go into the collector. Mine did.
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yrunvs
Member
Posts: 205
Prior Lake, Minnesota
Re: Exhaust moisture vent holes.
«
Reply #4 on:
June 14, 2020, 03:49:35 PM »
I guess I'll be checking that out tomorrow.
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I'm no gynecologist but hey I'll take a look!
Gryphon Rider
Member
Posts: 5227
2000 Tourer
Calgary, Alberta
Re: Exhaust moisture vent holes.
«
Reply #5 on:
June 15, 2020, 12:00:43 PM »
The products of perfect combustion are CO
2
and water vapour. When the exhaust pipes are cool enough, water condenses on the inside. Honda placed the holes to allow this water to drain. Touch the fluid that drips on the floor/pavement, and smell it. It won't be gas.
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