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Stuck Choke

SusKatCas

SusKatCas

Forum Apprentice
Pretty sweet day. 33F at 5:30am so I fired up the GS650G to ride to work, then for first time ever, Christmas shopping on the bike. Clearly no big screen TV's under the tree...

Anyway, about six minutes down the road the engine stopped idling, rising to around 4,000 rpm. I finished the 12 mile ride with visions of an intake boot or o-ring problem (both less than two years old). Maybe a stuck slide? Carbs rebuilt in 2016, properly stored with Stabil in system and ran nice as recently as December 2nd.

When I left work it was light out so I stopped after the high idle happened again and took a look. The choke (enricher) plunger was stuck in the two thirds on position. I punched it with my thumb and she dropped straight to 1100 rpm.

So, couple questions:
1) what do you lube the plungers with, maybe a drop of Marvel? Dry-slide? Silicone?
2) the little rubber caps that surround the plungers are stiff enough I tried to replace them when I did the carbs. I could not find them anywhere. Is there a source?

Cheers, Alan
 
Yah, unseasonably warm for this far north. Took advantage it it myself yesterday.

1) no comment, other than maybe about anything is better than nothing.

2)

1_1.png


#56 ....?
CAP 13682-31210
Your Price: $2.95

https://www.babbittsonline.com/oemparts/p/suzuki/13682-31210/-cap

Babbitts says is available, so seems that most other would have access to it also.

For all the carb o-rings search for "Cycle O-Rings Robert Barr" (a fine GSR member).
 
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My bike has what I call a "2 handed choke".

The carbs work well enough that it would not be worth the hundreds to have them rebuilt just so I could adjust the choke with my left thumb while my left hand is on the grip. Of course we're not talking about a complete rebuild of the carbs, but I was told they would have to be removed from the bike, and since I don't want to get involved in that myself, a 2 handed choke is not a hassle all. Especially when the big E fires up and heads turn.

And summer is just around the corner now...
 
It might help if you broke down the carbs and cleaned out the choke plunger bore and polished the plungers. Otherwise live with it or don't ride when it's so cold. On top of physical binding there would be some condensation ice forming as well.
 
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