Author Topic: Subtle valve train noise while moving under acceleration on 124 build.  (Read 501 times)

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Offline Vision

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Getting some subtle valve train noise and only under acceleration while moving.  Bike is performing flawlessly 6000+ miles since 124 Build.  I donít think itís the rocker arms because I had the tech use Feuling Rocker arm shafts in the rebuild.  I do remember the tech not being familiar with the Fuel Moto pushrods that I supplied along with the Wood 408 cam.  Question to the experts,  is it possible that the pushrods could use an adjustment?  How much is involved with that if need be?

Offline Rsw

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #1 on: October 07, 2019, 04:13:55 PM »
Noise only under a load. You sure itís not spark knock?

Offline Vision

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #2 on: October 07, 2019, 11:10:57 PM »
Actually Iím not sure.  Iíve never experienced it before.  Again,  no power loss and I only seem to hear it up to about 2600 RPMs or so and them it stops.   

Offline rbabos

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #3 on: October 08, 2019, 05:45:47 AM »
Actually Iím not sure.  Iíve never experienced it before.  Again,  no power loss and I only seem to hear it up to about 2600 RPMs or so and them it stops.
Valve train has no connection to load. It's something else like ping or the compensator.
Ron

Offline kd

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #4 on: October 08, 2019, 05:58:56 AM »
 :agree:   Check for exhaust leaks too.  What type of breather do you have?  It could be the breather / overlap sounding off.  That's about the right RPM for both of those situations.
KD

Offline Sunny Jim

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #5 on: October 08, 2019, 06:31:31 AM »
Exhaust leaks or knock!
Do you have a power vision?

Offline Hillside Motorcycle

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #6 on: October 09, 2019, 04:04:20 AM »
Noise only under a load. You sure itís not spark knock?

Beat me to it. :up:
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1) Mind yours, 2) Stay out of mine.

Offline HD Street Performance

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #7 on: October 09, 2019, 05:47:22 AM »
Worse hot or cold or all the time?

Offline Hossamania

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #8 on: October 09, 2019, 06:10:25 AM »
Is throttle body "flutter" or "clucking" still a thing? It used to be an issue making noise and not being identified as the source, chasing other causes. Certain air cleaners seemed to cause or transfer more noise than others.
No RoadGlides.

Offline Bandit1723

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Re: Subtle valve train noise while moving under acceleration on 124 build.
« Reply #9 on: October 10, 2019, 01:42:58 PM »
possible broken valve spring. worth checking....