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A little help please

  • Thread starter Thread starter GS750L
  • Start date Start date
G

GS750L

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Cleaned & rebuilt carbs. Noticed adjustment knob on back side of engine right in the center of crankcase. What does that adjust? Second question: is there a "right way" to clean/restore an stock foam air filter (it's in good shape just a little dirty & not brittle). Any help is greatly appreciated. 81 GS750L
 
The adjustment knob is for adjusting the idle. The foam filter is probably a Uni-filter. It needs to be washed, dried, and oiled with Uni filter oil.
 
renobruce said:
The adjustment knob is for adjusting the idle. The foam filter is probably a Uni-filter. It needs to be washed, dried, and oiled with Uni filter oil.
Click to expand...

Umm, i believe he is referring to the cam chain tensioner...

Don't mess with it, unless you are prepared to take it all apart and clean it.
 
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This site never lets down. Only way to adjust the cam tesioner is with a manual? I was wondering because it slightly seeps oil. Is that normal? I'll post some pics of my extremely clean gs when I get a chance. This is one of the best specialty motorcycle forums out there. I'm glad to see this many people who love their 20+ year old UJM. People say why don't you get a newer bike but they just don't understand the pride of a classic. Thanks again.
 
Cam chain tensioner rebuild with pictures and everything:
http://bwringer.com/gs/camchaintens.html

They all eventually leak oil, and a few bucks in seals will fix the problem easily.

The part numbers for the seals on your bike may be exactly the same OR they may be completely different. PLEASE verify with your favorite parts source.

The procedure shown is the same for most, if not all, GS models. Some tensioners look a little different, but they all work the same general way.

This will also help you identify the cam chain tensioner positively -- there is an idle adjustment screw under the carbs that you can twiddle to your heart's content, but PLEASE make sure you know which is which.
 
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