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93 GS running lean? fixes?

Started by flyingmachine, June 03, 2007, 03:43:27 PM

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flyingmachine

June 03, 2007, 03:43:27 PM
My bike has recently started having problems with throttle response, died on me a few times in the streets when too much throttle is applied.  When I examined the plugs, it seems to be overheating.  I plugged the missing CA emission required hoses, and changed the plugs and air filter.  Right now, it'll idle at just below 1K, but if I twist the throttle quickly the engine would bog and die out.  On the other hand, if a small amount of throttle is applied, the bike will rev up easily.  I've search the posts, and it sounds like my bike is running lean, if so what are some possible causes and fixes?  Could someone recommend a shop near Fullerton, CA (LA/OC county) in the US?  If I can't get her running smoothly myself, maybe it's time for some professional assistance.   Thanks!

Jay_wolf

#1
June 03, 2007, 04:32:42 PM
Rejet....
2001 Gs500 , Katana Gsx Front End, K3 Tank,, Full S S Predetor System ,Bandit Rear Hugger,Goodridge S S Break Lines ,  Belly Pan , , K+N LunchBox, Probolt Bolts, FSD Undertray With Built in Lights And Indicators. 
2008 Megelli 125 SM 14bhp
1996 Honda NSR 125cc 33bhp
2001 Mercades A160  115bhp

flyingmachine

#2
June 03, 2007, 09:40:32 PM
what is the stock jets for a GS500?  Just curious, as far as I know the bike as been a CA bike, does the jets get worn through use?  It only has 14K on the meter.  thanks.

Wrecent_Wryder

#3
June 04, 2007, 02:47:12 AM Last Edit: August 18, 2007, 05:08:14 PM by Wrecent_Wryder
I7
"On hiatus" in reaction to out-of-control moderators, thread censorship and member bans, 7/31/07.
Your cure is worse than the disease.
Remember, no one HAS to contribute here.

flyingmachine

#4
June 04, 2007, 10:47:55 AM Last Edit: June 05, 2007, 08:11:10 PM by flyingmachine
The bike was stored for about 2 month, but then the gas tank had a thorough cleaning and new gas was added.  It ran fine for another 2 month until about 3 wks ago it started dying on me.  I'll check for the vaccum leak with the carb cleaner later when I get home.  Thanks,

flyingmachine

#5
June 05, 2007, 08:11:18 PM Last Edit: June 05, 2007, 08:12:24 PM by flyingmachine
Got home today with about 1/2 an hour of sunlight left, I checked for vacuum leaks by spraying the carb and petcock area with some carb cleaner.  Couldn't find any thing leaks that affected the rpm.  Recheck the idle screw and set it at 3 turns out.  Bike still idlling at a little less than 1k.  I finally went for a quick ride up and down the block, I had to keep the throttle tiny till it climbed to 3K or so, then I can open it up quite a bit more, at 5K I can give it even more throttle.  If I apply too much throttle to a particular rpm range, the engine would bog.  Seems to be the same behavior with the petcock under prime or fuel on.  Does it still sound like the jets should be adjusted?  or is there a vac leak I"m not seeing?  What type of rpm spike should I be looking for when spraying the carb cleaner?  Thanks,

flyingmachine

#6
June 06, 2007, 01:47:12 PM
any help?  still think it's a problem that needs rejetting?  My first bike so still not to confident about working on it
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