Engine sound - Honda Valkyrie F6C Forum
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post #1 of 18 (permalink) Old 06-01-2020, 10:05 PM Thread Starter
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Engine sound

As an owner of a CTX 1300, I note that the Valkyrie has a very similar engine sound, which involves a humming sound like a sewing machine intermixed with the normal engine growl, as has been used as a descriptor. I was told the unique sound of the CTX is due to its straight, as opposed to helical, gearing. Does the Valkyrie also have this straight gearing? The engine sound is so similar and I can't imagine it making this sound unless it has similar mechanical operation. Thanks!


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post #2 of 18 (permalink) Old 06-02-2020, 09:39 PM
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To me it has always sounded like a cross between a car and a spaceship... the Valk does have a different exhaust note from a Goldwing though I noted that a couple of weeks ago as a tech hopped on mine to pull it around to the shop I was like that darn thing has a healthy growl to it... Sewing machine? No a Harley big twin sounds like a old singer sewing machine
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post #3 of 18 (permalink) Old 06-02-2020, 11:36 PM Thread Starter
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I distinctly hear that high pitched whine that comes from straight gears like on my CTX, but I can't confirm anywhere whether that's the cause. I have an inquiry in to Honda. We'll see how that goes...


Richmonder

"There are no motorcycles in a psychiatrist's parking lot."


Previous bikes:


Honda Z50A (sold)
Kawasaki KS 125 (sold)
Kawasaki KZ 650 (sold)
Honda V45 Magna (sold)
Honda VTX 1300r
Honda VTX 1800r
Honda CTX 1300
Honda F6C Valkyrie
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post #4 of 18 (permalink) Old 06-03-2020, 01:14 PM
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I cannot say for sure----BUT I HAVE BEEN TOLD---the high pitch whine is the oil pump gears.

Take that with a grain of salt.
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post #5 of 18 (permalink) Old 06-03-2020, 01:54 PM
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The 1800 does have straight cut gears, as almost all motorcycles do. Here is a pic of the internals. https://goldwingdocs.com/images/News...on_Failure.jpg
I think that wine is from the cam chain against the chain guides.
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post #6 of 18 (permalink) Old 06-03-2020, 04:29 PM Thread Starter
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I seem to get more confused the deeper I get into this. The CTX 1300 has an extremely unique sound. A high pitched hum combined with a growl. It has been well documented that this sound is rare, and on the CTX forum it was stated that this whine is due to straight cut gears, which they said was rare in most engines.

You are saying most motorcycles have them, so on that basis, most motorcycles should have that whine to them. But they don't. So, when I hear it on the Valkyrie, it makes me want to know what they have in common.

If it's the oil pump gears, what is it that makes them whine that other bikes don't have?

Forgive my annoying inquiries but I am endlessly curious about this.

Richmonder

"There are no motorcycles in a psychiatrist's parking lot."


Previous bikes:


Honda Z50A (sold)
Kawasaki KS 125 (sold)
Kawasaki KZ 650 (sold)
Honda V45 Magna (sold)
Honda VTX 1300r
Honda VTX 1800r
Honda CTX 1300
Honda F6C Valkyrie
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post #7 of 18 (permalink) Old 06-03-2020, 08:54 PM
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I only notice a whine when doing 50 to 55 because i forgot to shift to 5 th gear

Directions ? That's only the Manufacturer's opinion of the way this should be assembled.
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post #8 of 18 (permalink) Old 06-12-2020, 12:49 PM
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I have owned both the CTX and the Valk. To me it is more of a high pitched whine like a turbo on a Semi Truck engine. It has to be related to the engine and not the tranny as it makes the noise all the time, even at a stop in neutral. >>> My 2 cents... oh and yes i like it very much!

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post #9 of 18 (permalink) Old 06-12-2020, 09:55 PM
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Is it possible it's the alternator you're hearing?
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post #10 of 18 (permalink) Old 06-12-2020, 10:26 PM Thread Starter
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I could be convinced of that. So we have as possible contenders now:


Straight gears
Oil pump
Alternator
Valve train



I would think it would be so easy to identify but so far no one is certain. It is common to these two bikes and few others.



Richmonder

"There are no motorcycles in a psychiatrist's parking lot."


Previous bikes:


Honda Z50A (sold)
Kawasaki KS 125 (sold)
Kawasaki KZ 650 (sold)
Honda V45 Magna (sold)
Honda VTX 1300r
Honda VTX 1800r
Honda CTX 1300
Honda F6C Valkyrie
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