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Main Area => General GS500 Discussion => Topic started by: ditchdoc1017 on September 08, 2005, 12:28:17 PM

Title: Jetting
Post by: ditchdoc1017 on September 08, 2005, 12:28:17 PM
Does anyone ever take out the jet with the carbs on the bike by just droping the bowl and doing the jets from under side.Looks like it would be easier than pulling the tank.
Title: Jetting
Post by: davipu on September 08, 2005, 12:30:08 PM
not really unless you have a magic screwdriver to get to the inside bowl screws.
Title: Jetting
Post by: scratch on September 08, 2005, 12:39:10 PM
It's not magic, it's using your sense of feel to feel for the screw with your fingers, locating it, and using a right-angle screwdriver bar or a screwdriver socket attachment for a 3/8th drive ratchet. Some have replaced those philips screws with allen head screws to prevent rounding out the screws and would make it even easier to remove the bowls while the carbs are still mounted on the bike. Shoot, I've taken the bowls off with the original screws (but I probably wont do it again; too scary)!
Title: allen
Post by: The Buddha on September 08, 2005, 12:47:03 PM
Yea allen head screws and yank them ... yea ... phillips is usually faaaar too tight ...
Cool.
Srinath.
Title: Jetting
Post by: davipu on September 08, 2005, 12:47:44 PM
although if you have never taken the screws out before they tend to freeze in there and are best removed with a hand impact.
Title: Jetting
Post by: ditchdoc1017 on September 08, 2005, 12:55:15 PM
I just cleaned mine but did not have new jets to put in them having to order them so I just wanting to change them also notice a small leak where the line goes in to the T it would be easier to tighten with bowls off.
Title: Jetting
Post by: EDub on September 08, 2005, 01:09:19 PM
but then again removing the two bolts from the tank and proping it up in order to remove the carb, airbox assembly might be simpler
Title: Jetting
Post by: ratz on September 08, 2005, 01:31:43 PM
Allen heads on the bowls, and here is your magic screwdriver for the jet itself:
(http://www.sudco.com/images/950-406.jpg)

if that doesn't work, try this page, and scroll down.

http://www.sudco.com/motionpro.html
Title: Jetting
Post by: ditchdoc1017 on September 08, 2005, 01:57:33 PM
Thats cool thanks.
Title: Jetting
Post by: ditchdoc1017 on September 08, 2005, 07:01:17 PM
I was looking at the K&N filter website they have a drop in also have one that bolts straight to the carbs #RU-2970 is this the one to get if so what jets still 40 and 125 or do I need 127.5 or 130.
Title: RU
Post by: The Buddha on September 08, 2005, 07:16:47 PM
Ru 2970 = lunch box = 150/40/1/3.
Drop in I believe has a SS or SU number, and its 127.5/40/1/3.
Cool.
Srinath.
Title: Jetting
Post by: ditchdoc1017 on September 08, 2005, 07:28:49 PM
Will it be ok to go with the lunch box and stock pipe for now with 150 and 40
Title: Jetting
Post by: scratch on September 09, 2005, 08:08:06 AM
No. Nobody has been able to get that setup to work.
Title: Jetting
Post by: ditchdoc1017 on September 09, 2005, 09:03:27 AM
Well I am ordering 40 and 125 or 127.5. Mine still suxs zfter cleaning carbs.
Title: Jetting
Post by: V8Pinto on September 09, 2005, 09:28:45 AM
Quote from: ditchdoc1017Will it be ok to go with the lunch box and stock pipe for now with 150 and 40

You can run the RU-2970 with stock exhaust but the jetting is roughly 130-135's on the mains.  It also helps to drill 4 holes in the stock can but you don't have to.  

My bike liked 135's with stock pilots and no washers under the needles with the stock exhaust.  With this combo, drilling four holes in the exhaust can netted me almost 2 tenths in the quarter mile.
Title: Jetting
Post by: ditchdoc1017 on September 09, 2005, 02:38:45 PM
I just order pod with 40 and 130 lets try that.
Title: Jetting
Post by: Roadstergal on September 09, 2005, 02:57:05 PM
If your bike runs badly with stock jetting, stock airbox, and stock exhaust, richer jetting isn't going to help.  Find out what's wrong first.  Rejetting is an upgrade, not a fix.
Title: Jetting
Post by: ditchdoc1017 on September 09, 2005, 03:25:07 PM
It is starfing for gas it runs great idle and runs great a full but the mid is what suxs.I also am going to do another surper clean of the carb and take the tank off and clean it also the filter I put in the other day already has trash in it from the tank  :x . But even at 65 mph and 70 you can fill it saying more fuel.
Title: Jetting
Post by: funwithtwins on September 12, 2005, 07:33:22 PM
Hell i just filed mine out with a torch file kit and payed special attn. to how much i filed the main and the pilot. Then i just made sure i filed them equally, left the needle set where it was and with a new pipe I could not believe the improvment over stock jetting. Most people thought i was crazy for doing this but it was an old school trick shown to me by a freind , and older mech. anyway if you fail and screw up your jets , go to bellssuzuki.com there like 6 bucks a peice for oem jets. Just becareful not to file too much. Do less ride for about a week, check your plugs color for jetting mix , it took me 3 times to get a paper sac brown color after i done mine before i got it right with k&n singles, and a pipe i ran really lean. the bike idles smooth throttle response is much better and just plain runs better. I think its safe to say i got an easy 10% gain. A dyno kit may work better but im happy with what i got out of mine enough i dont wanna mess with it.
Title: Jetting
Post by: ditchdoc1017 on September 15, 2005, 09:19:04 AM
Srinath
      One last ? can you explain what to do with the #4 washer I have looked a pic and just dont get it maybe when I get it  apart it make since but a little insite might help.Do I put it under the need or slide it on it.
Title: Lift
Post by: The Buddha on September 15, 2005, 09:28:03 AM
The #4 is unsed to lift the needle as it sits in the carb. So it goes under the E clip, I typically put it between the plastic spacer and the clip.
Cool.
Srinath.
Title: Jetting
Post by: ditchdoc1017 on September 15, 2005, 10:42:42 AM
Thanks
you Know that want be the last but it sounded good.  :P