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Valve Adjustment Documentation?

  • Thread starter Thread starter jinkside
  • Start date Start date
Fun new problem: Hoping to save time of disconnecting/reconnecting the fuel hose from carbs, I set the petcock to prime and let it drip out the vacuum hose. Looking back, I'm not entirely certain why I didn't just remove the tank, but... hindsight, 20/20, etc.

So... now the left (lower) cylinder appears to be not firing, and fuel drips/sprays out of the exhaust near the footpeg. I grabbed a new spark plug since the old ones needed to be replaced so badly. I was hoping that would work, but no dice. Any suggestions?

Update:
When I went out to try it again a few minutes ago, I was able to get some white smoke. I think I may have gas in my oil from my prime-to-empty-the-tank mistake.

Second Update:
After having changed the oil - which was more fuel than oil at this point - I had some spotty performance, which I later realized was due to being out of fuel. A full tank later, my bike sounds like an engine again, instead of a semi-auto firecracker.
 
Last edited:
Hi,

I found this on some guy's website:


------------------------------
Valve Adjustment Video

Kerry Burton of GStwin.com has put together a very informative video chronicling the process of valve adjustment on his GS500. The procedure will be the same for all GS twins. The principle is the same for all 2-valve GS motors.

CLICK HERE to go to the Google video.
-------------------------------

That same website also has a Haynes and a Clymer manual for the GS450 and a carb rebuild guide.


Thank you for your indulgence,

BassCliff

Hi, I hope to be checking and adjusting the valves on my 1983 GS450E soon.

From what I've seen, it looks like I have a two-valve head, and it uses shims for adjustment, is that correct?

The link to the video is no longer working; do you have one that does?

Also if there's any information that you know of that may be specific or helpful regarding my specific bike, please let me know.

Last but not least, thanks for providing all the great information that you do for our bikes! :)
 
Might be good to check your petcock. If there is gas coming from the vacuum line it's not good and will definitely contaminate your oil. Ask me how I know. I might not be reading your post correctly? Still check it anyway.
 
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