2017 Street Glide Special engine noise
Thread Starter
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Intermediate
Joined: Nov 2023
Posts: 29
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From: Arizona
I'm a little stupid when it comes to engines. Tbody? Meaning throttle body?
Thread Starter
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Intermediate
Joined: Nov 2023
Posts: 29
Likes: 3
From: Arizona
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From: poway
I assume the noise is when the throttle is blipped?
Sounds to me like an exhaust leak..
Add:
Could be a blown head gasket also. (worst case)
Sounds to me like an exhaust leak..
Add:
Could be a blown head gasket also. (worst case)
Last edited by Max Headflow; Nov 22, 2023 at 09:42 AM. Reason: Add
Thread Starter
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Intermediate
Joined: Nov 2023
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From: Arizona
Here is another clip
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From: Honah Lee
Sounds like that was the exhaust. I assume you just turned it off. You bike does have throttle by electric wire. It has the ability if you let off throttle fast, it will feather some additional air to lean that over rich mixture left in intake. Very noticeable in cars with an automatic and easy to see.
That just could be the odd noise in your previous clip. The butterfly shutter off it's stop.
Next time your biping throttle, watch it drop to idle and then reve maybe a hundred back up on its own. On a manual transmission, it only going to do it in neutral or clutch in.
Harley's system may not be capable but very new bikes have OB2 capabilities with the adapter plug.
That just could be the odd noise in your previous clip. The butterfly shutter off it's stop.
Next time your biping throttle, watch it drop to idle and then reve maybe a hundred back up on its own. On a manual transmission, it only going to do it in neutral or clutch in.
Harley's system may not be capable but very new bikes have OB2 capabilities with the adapter plug.
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Intermediate
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From: Arizona
Ok, but everything that I have searched for on a blown head gasket, would show signs of oil in areas around the gasket.. correct?
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From: poway
If you ride the bike and open the throttle hard for a short time, say second or third do you hear the sound? You can try using a candle or some other small flame and move it around the headgasket without burning anything.. When you hear the sound does the flame flicker?
Another thing that I forget about is the compression release. It may be loose. About the only way to check that is possibly stuff rags around it and see if the noise quiets down.
The 2017s were known for blowing headgaskets. Not real common but it does occur.
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Thread Starter
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Intermediate
Joined: Nov 2023
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From: Arizona
Only if there is an oil passage near by.
If you ride the bike and open the throttle hard for a short time, say second or third do you hear the sound? You can try using a candle or some other small flame and move it around the headgasket without burning anything.. When you hear the sound does the flame flicker?
Another thing that I forget about is the compression release. It may be loose. About the only way to check that is possibly stuff rags around it and see if the noise quiets down.
The 2017s were known for blowing headgaskets. Not real common but it does occur.
If you ride the bike and open the throttle hard for a short time, say second or third do you hear the sound? You can try using a candle or some other small flame and move it around the headgasket without burning anything.. When you hear the sound does the flame flicker?
Another thing that I forget about is the compression release. It may be loose. About the only way to check that is possibly stuff rags around it and see if the noise quiets down.
The 2017s were known for blowing headgaskets. Not real common but it does occur.
Makes me wonder if the idle is just to low and the engine is struggling for a brief moment. But then again I'm no mechanic so.
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From: poway
The only time that I notice the noise is when the bike comes to idle. So no matter the gear if I pull the clutch in and let it come to idle RPM I head the noise.
Makes me wonder if the idle is just to low and the engine is struggling for a brief moment. But then again I'm no mechanic so.
Makes me wonder if the idle is just to low and the engine is struggling for a brief moment. But then again I'm no mechanic so.
