Puff sound- from front pipe
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Road Master
Joined: Jul 2006
Posts: 762
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Puff sound- from front pipe
I have noticed that sometimes when I hit he start button, but the bike does not start, I will get a "puff" from the front exhaust head area. Yesterday it also did this and died on me while sitting at a red light..........Also, if I am just sitting still and twist the throttle real quick, it sounds like a small puff from that same front area. What do you think could cause this?
 \\;
My bike has about 6 weeks left on warranty so I want to get it fixed if you think is something wrong. I know HD's make so many dang noises that it may just be normal??????
 \\;
My bike has about 6 weeks left on warranty so I want to get it fixed if you think is something wrong. I know HD's make so many dang noises that it may just be normal??????
Cruiser
Joined: Apr 2007
Posts: 125
Likes: 1
From:
RE: Puff sound- from front pipe
Probably just compression being released. I was told with my 103" to start it to bump the start button first, it releases the pressure, then hit it again to start it after that. And you can hear and feel (if your standing behind the exhaust) the pressure being released.
Seasoned HDF Member
Joined: Oct 2007
Posts: 10,946
Likes: 822
From: Nevada
RE: Puff sound- from front pipe
Let the dealer look at it before the warranty expires. On the other hand, make sure the nuts that secure the pipe flange to the head are tight. Mine tend to loosen. \\;
Seasoned HDF Member
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
RE: Puff sound- from front pipe
It's \\;high compression caused when you try to start the bike while hot after just a short time off. \\; Compression hasn't had time to leak down yet. \\; My 88" never did it, my 96" does it regularly. \\; Annoying.
 \\;
 \\;
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Road Master
Joined: Jul 2006
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RE: Puff sound- from front pipe
ORIGINAL: winston chopper
AC maybe. Thats makes a good puff at start up and shut down?
Header gasket leak?
AC maybe. Thats makes a good puff at start up and shut down?
Header gasket leak?
I'm a little slow......What does AC mean? \\
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Grand HDF Member
Joined: Dec 2007
Posts: 4,999
Likes: 55
From: Bay Area
RE: Puff sound- from front pipe
AC= air cleaner. I have a 103 with 13k on it and never had any of these issues. Sounds like an exhaust leak. As mentioned ck the nuts and get to dealer before your out of the computer.
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