Valve Lash Adjustment - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 5 (permalink) Old 10-21-2019, 05:44 PM Thread Starter
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Valve Lash Adjustment

Is this a thing?

I'm removing my engine this winter to fix a coolant leak in the head gasket.
I'm trying to make a list of all the things to do while the engine is out.

So far, I have:
1. Replace Cylinder Head Gasket
2. Tuxedo Mod
3. Check/replace engine dampers
4. Remove surge tank (Airbox, not coolant overflow tank)
5. Valve Lash check/adjustment?
6. Anything else?


'89 Vulcan 750 Bought 4/12/18 @ 17805.9 miles $800
Purchased stock. Wrecked once
26980.4+ miles

Completed modifications:
Removed mufflers, straight pipes out of GB
110/90 Front Tire
Pick-up coil re-gapped to .020"
Shindengen MOSFET FH020AA r/r
USB Outlet + Voltmeter
Repainted Metallic Blue w/ new tank bages
Ear Shave (wo/ coasters) 40/140 NO shims 45MPG
MCCT conversion

Planned modifications:
Custom LED turn signals
Windshield
Highway Pegs
(Possible) ignition advance

Last edited by Jason Pittenger; 10-22-2019 at 07:44 PM. Reason: Clarify meaning of "surge tank"
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post #2 of 5 (permalink) Old 10-21-2019, 07:14 PM
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Valve lash is hydraulic, no adjustment.

Why would you remove the surge tank? Antifreeze is slicker than greased owl poop under your tires.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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post #3 of 5 (permalink) Old 10-21-2019, 08:55 PM
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Isn't the surge tank and the breather box the same thing on this bike? Which everyone hates because it makes working on the carbs harder so they get rid of it when they do the ear shave (which I haven't done because I like the air pods)?

I thought it was only oil that would potentially come up into the surge tank, and that the coolant was its own enclosed system.

1992 US-nonCA * tuxedo mod * r/r relocated

Vulcan slang for newcomers
Service Manual Download
Wiring Diagram + annotations * still undergoing revisions, but still more useful than the generic one. Let me know if you find mistakes or think something additional should be added
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post #4 of 5 (permalink) Old 10-21-2019, 09:31 PM
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Quote:
Originally Posted by Thorn View Post
Isn't the surge tank and the breather box the same thing on this bike? Which everyone hates because it makes working on the carbs harder so they get rid of it when they do the ear shave (which I haven't done because I like the air pods)?

I thought it was only oil that would potentially come up into the surge tank, and that the coolant was its own enclosed system.
Yes, you're probably right. Always thought that was a silly name for the airbox.

The coolant tank is called a surge tank in some applications.

His signature says earshaved, maybe he left the airbox in?

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf

Last edited by Spockster; 10-21-2019 at 09:39 PM.
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post #5 of 5 (permalink) Old 10-22-2019, 07:48 PM Thread Starter
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Quote:
Originally Posted by Spockster View Post
Valve lash is hydraulic, no adjustment.
That'd be why I had never heard anyone mention this before!
PERFECT!

Quote:
Originally Posted by Spockster View Post
Yes, you're probably right. Always thought that was a silly name for the airbox.

The coolant tank is called a surge tank in some applications.

His signature says earshaved, maybe he left the airbox in?
Ya, I was referring to the air box. I left the surge tank in while doing my earshave, because at the time, the only removal method I knew of was cutting it. I wasn't sure if I was going to keep it shaved, so I didn't want to destroy the air box.


'89 Vulcan 750 Bought 4/12/18 @ 17805.9 miles $800
Purchased stock. Wrecked once
26980.4+ miles

Completed modifications:
Removed mufflers, straight pipes out of GB
110/90 Front Tire
Pick-up coil re-gapped to .020"
Shindengen MOSFET FH020AA r/r
USB Outlet + Voltmeter
Repainted Metallic Blue w/ new tank bages
Ear Shave (wo/ coasters) 40/140 NO shims 45MPG
MCCT conversion

Planned modifications:
Custom LED turn signals
Windshield
Highway Pegs
(Possible) ignition advance
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