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Valkyrie Riders Cruiser Club > General > 1500 Tech Board > LOUDER after valve adjustment? Is this normal?
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Author Topic: LOUDER after valve adjustment? Is this normal?  (Read 366 times)
Draeger
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Posts: 96


Nanaimo, British Columbia
« on: June 19, 2025, 05:46:53 PM »
Hey fellas,

My left side valves had a persistent tick in them that was just there, not too loud. I adjusted the valves today - a couple exhaust valves were tight... not a problem, I set them according to the manual.

Now that left side is even louder?

I made a video so you all can tell me what you think - right side is quiet.

The other thing I noticed was that two of the three vacuum hoses going to the first and second carbs on the left side were off. I put them back on. Would that change the sound?

https://youtube.com/shorts/jrjwR9kJG8g?feature=share
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If you are distressed by anything external, the pain is not due to the thing itself, but to your opinion of it; and this you have the power to revoke at any moment. ~ Marcus Aurelius
sandy
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Posts: 5383


Mesa, AZ.
« Reply #1 on: June 19, 2025, 05:57:59 PM »
If the change is related to the adjustment, you probably missed something. Go back and do it again. If you had that sound before and after, check for an exhaust leak.
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Chrisj CMA
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Posts: 14765


Crestview (Panhandle) Florida
« Reply #2 on: June 20, 2025, 04:40:12 AM »
Hint. If you had to turn the adjuster screw more than a “hair” you probably adjusted a valve on the wrong top dead center
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Draeger
Member
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Posts: 96


Nanaimo, British Columbia
« Reply #3 on: June 20, 2025, 02:30:14 PM »
Thank you so much guys!

I followed your advice and went over it again. Only took off the left side valve cover, then checked TDC on #1 with a flashlight ... went through the whole procedure in the manual... and sure enough... One of the lifters on the left side was very loose - maybe I forgot to double check it, maybe I didn't tighten it down... I don't know.

Much quieter now!

So appreciated Smiley
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If you are distressed by anything external, the pain is not due to the thing itself, but to your opinion of it; and this you have the power to revoke at any moment. ~ Marcus Aurelius
Chrisj CMA
Member
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Posts: 14765


Crestview (Panhandle) Florida
« Reply #4 on: June 20, 2025, 04:22:16 PM »
Quote from: Draeger on June 20, 2025, 02:30:14 PM
Thank you so much guys!

I followed your advice and went over it again. Only took off the left side valve cover, then checked TDC on #1 with a flashlight ... went through the whole procedure in the manual... and sure enough... One of the lifters on the left side was very loose - maybe I forgot to double check it, maybe I didn't tighten it down... I don't know.

Much quieter now!

So appreciated Smiley

You do know there are two top dead centers in a firing sequence, and you can only adjust the valves on one of them. The exhaust TDC is NOT right one.
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indybobm
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Posts: 1600

Franklin, Indiana VRCC # 5258
« Reply #5 on: June 21, 2025, 07:09:08 AM »
Also, if a vacuum hose off of one of the intake tubes has a hole in it, it can make the same kind of noise.
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CoreyP
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Posts: 479


Bluffton, SC
« Reply #6 on: June 22, 2025, 08:02:54 PM »
Just went through this myself and I had the exact same sound. Problem was I had the wrong TDC, I didn't know it made a difference. I assumed TDC was TDC only once in a cycle. Had to redo the valve adjustment, not a big deal but annoying. I was use to do 2 stroke valves not 4 stroke valves.
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Draeger
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Posts: 96


Nanaimo, British Columbia
« Reply #7 on: June 22, 2025, 09:40:01 PM »
I had vacuum hoses off of three of the carbs and had somehow messed up one of the valves on the left side ... now it's all fixed and runs like a dream. Amazing what happens when you really pay attention  Tongue
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If you are distressed by anything external, the pain is not due to the thing itself, but to your opinion of it; and this you have the power to revoke at any moment. ~ Marcus Aurelius
LugNut1968
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Posts: 13
« Reply #8 on: June 23, 2025, 12:45:18 AM »
New Valk owner here... On the yamaha cruisers, I have it is very accepted that you never touch the valves. Even though the manual recommends checking every sixteen thousand miles. What is the consensus with the Valkyrie community regarding adjusting valves? Absolutely, a must do or something you just leave alone and don't bother with?
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