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Main Area => General GS500 Discussion => Topic started by: remo2k9 on April 25, 2010, 11:30:57 PM

Title: Rich or lean? My spark plug
Post by: remo2k9 on April 25, 2010, 11:30:57 PM
replaced it today and heres wat it looks like after 30000kms

(http://i579.photobucket.com/albums/ss239/remo2k8/Image001.jpg)
Title: Re: Rich or lean? My spark plug
Post by: remo2k9 on April 25, 2010, 11:32:55 PM
(http://i579.photobucket.com/albums/ss239/remo2k8/Image002.jpg)
Title: Re: Rich or lean? My spark plug
Post by: Elijafir on April 26, 2010, 12:06:39 AM
hard to tell with low picture quality.  Looks lean.  If the prong is white it's lean.. if there is lots of "soot" then it's rich.
Title: Re: Rich or lean? My spark plug
Post by: sledge on April 26, 2010, 01:21:28 AM
No need for pics.......you are running without an airfilter it will be lean...PERIOD!
Title: Re: Rich or lean? My spark plug
Post by: remo2k9 on April 26, 2010, 02:41:32 AM
hmm yea today i test it going to 7k revs trying to get to 8k it pulled back, so wat i learnt to day was the screw underneath the carbs for the idle is the screw to adjust air to fuel ratio? is that correct? if so i adjusted my idle to 1.1krevs and it ran smooth all the way to 9k  :angel:  :oops:
Title: Re: Rich or lean? My spark plug
Post by: jeremy_nash on April 26, 2010, 04:41:16 AM
no, the idle control just adds a small amount of throttle to keep the engine running when you arent giving it gas
Title: Re: Rich or lean? My spark plug
Post by: remo2k9 on April 26, 2010, 06:05:04 AM
how do i adjust the air to fuel ratio?
Title: Re: Rich or lean? My spark plug
Post by: sledge on April 26, 2010, 06:50:32 AM
Quote from: remo2k9 on April 26, 2010, 06:05:04 AM
how do i adjust the air to fuel ratio?

Easy....just put the filter back in and it will be spot-on  :thumb:
Title: Re: Rich or lean? My spark plug
Post by: seamax on April 26, 2010, 09:44:18 AM
Damn are people just lazy these days..I prefer to think 'stupidity'. No wonder the world is in the sh!tz. Do a search and you'll find your answer but just to help you out this time..it was like the 4th post on the search for spark plugs. Damn newb. :2guns:

http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
Title: Re: Rich or lean? My spark plug
Post by: black and silver twin on April 26, 2010, 12:14:54 PM
Quote from: remo2k9 on April 26, 2010, 06:05:04 AM
how do i adjust the air to fuel ratio?

the fuel jets inside the carbs need to be replaced to change the AFR. But if you are running with out an air filter, put one in, stock, K&N, lunch box, doent matter. you will hurt the engine (slowly but surely) with out one. If you are interested in performance get a K&N lunchbox filter part # RU-2970 http://www.knfilters.com/search/product.aspx?Prod=RU-2970 then rejet. the lunch box filter flows MORE air than the stock air box with no filter, while still filtering out contaminants.
Then rejet, I cannot stress these 2 most important things enough. 1 run a filter 2. rejet
do both and you will get more power AND not kill you new bike.
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