Search   Memberlist   Usergroups   Register   Profile  Log in  Log in to check your private messages   Pilot screw          TorontoMotorcycle.com Forum Index -> Talk Shop View previous topic :: View next topic   Author Message Havoc Joined: 13 Mar 2008 Posts: 129 Posted: Wed Mar 18, 2009 8:20 am    Post subject: Pilot screw So I have a 2000 gsxr 600. Does anybody know if the Pilot Screw in the carb is responsible for more air input or fuel input? My bike is running a bit lean and I want to adjust it a bit. Yes I have count the number of turns to be seated. cheers _________________ I have 2 Girlfriends, 1 is human, 1 ain't. The latter has 2 wheels. Back to top wherermykeys Joined: 01 Mar 2007 Posts: 289 Location: schmocation Posted: Wed Mar 18, 2009 11:42 am    Post subject: How do you know your bike is running lean? That screw only adjusts your mixture at idle...it has nothing to do with your fuel ratio when you're actually moving. That screw should be adjusted out until your bike idles cleanly and that's it. _________________ If God didn't want us to eat animals, why did he make them out of meat??? Back to top Havoc Joined: 13 Mar 2008 Posts: 129 Posted: Wed Mar 18, 2009 2:33 pm    Post subject: wherermykeys wrote: How do you know your bike is running lean? That screw only adjusts your mixture at idle...it has nothing to do with your fuel ratio when you're actually moving. That screw should be adjusted out until your bike idles cleanly and that's it. -rough idle at startup -have to use the choke longer than usual, ie 5mins or more -dry oxidized spark plugs -throttle lag from 1/4 throttle to full throttle etc etc _________________ I have 2 Girlfriends, 1 is human, 1 ain't. The latter has 2 wheels. Back to top jimyed Joined: 27 Jul 2005 Posts: 2743 Location: Riding,Riding,Riding!!!!!! Posted: Thu Mar 19, 2009 3:02 pm    Post subject: Havoc wrote: wherermykeys wrote: How do you know your bike is running lean? That screw only adjusts your mixture at idle...it has nothing to do with your fuel ratio when you're actually moving. That screw should be adjusted out until your bike idles cleanly and that's it. -rough idle at startup -have to use the choke longer than usual, ie 5mins or more -dry oxidized spark plugs -throttle lag from 1/4 throttle to full throttle etc etc That's not all idle nmixture then. Quote: -throttle lag from 1/4 throttle to full throttle is mainjet territory. If this is just happening now after the winter storage run acouple of tanks of fuel through it and maybe something like Seafoam ( I know "snake oil" but it workes for me) . If you still have problems heres a site that might help. http://www.factorypro.com/tech/carbtune,CV,high_rpm_engines.html _________________ Don't ride in the rain? Then YOU don't ride. Homo! Back to top Havoc Joined: 13 Mar 2008 Posts: 129 Posted: Thu Mar 19, 2009 7:09 pm    Post subject: Quote: ="jimyedThat's not all idle nmixture then. Quote: -throttle lag from 1/4 throttle to full throttle is mainjet territory. If this is just happening now after the winter storage run acouple of tanks of fuel through it and maybe something like Seafoam ( I know "snake oil" but it workes for me) . If you still have problems heres a site that might help. http://www.factorypro.com/tech/carbtune,CV,high_rpm_engines.html Sorry I meant 0-1/4 throttle. I've been talking too much about this crap. I'm getting a headache now . But I have it back in one place and intend to have it all finished by Saturday. I still need to fix a leak in my cover gasket. _________________ I have 2 Girlfriends, 1 is human, 1 ain't. The latter has 2 wheels. Back to top wherermykeys Joined: 01 Mar 2007 Posts: 289 Location: schmocation Posted: Fri Mar 20, 2009 12:11 pm    Post subject: Well, normally the fuel screw will richen the mixture the further out you have it. Sometimes (like on a CRF50) it will be an air screw which will lean it out. Just mess with it until your idle stabilizes. You can't really mess much up with that screw. Just remember where you started from. _________________ If God didn't want us to eat animals, why did he make them out of meat??? Back to top CoconutColin Joined: 10 Feb 2005 Posts: 1100 Location: Je regarde Telefrancais, Bitches! Posted: Sun Apr 19, 2009 7:52 am    Post subject: that screw just adjusts air. Anywyays, if you bike was running fine before you parked it and there were no issues... then you dont adjust shit.. You will just make things worse. Take the carbs off the bike... and blow the shit out of your jets, the ports all throughout the carb and all over the bike... Dont do sea foam or carb clean.. it will fix 20% of your problem which is gummed up carburator bowl and jets. I bet it runs nice from like 3000-9000 rpm but when u come to a stop sign i stalls? Right? You got shit all in ur jets.. Clean it with a can of carb clean, blow it out with compressed air.. re assemble and watch it idle beautifully. _________________ |\________________,,_________ ./ `---_1982 GS500 M Katana___|] /_==o;;;;;;;; _______.:/ ),---.(_(__) / .// (\) ),----" //___// GSX600 F Motor, Vance and Hines 4-1, SV650 Forks, doesn't run Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         TorontoMotorcycle.com Forum Index -> Talk Shop All times are GMT - 5 Hours Page 1 of 1   Jump to: Select a forum Motorcycles----------------Bike TalkTalk ShopTrack Stars UniteIs it 12 o'clock Already?Buy & SellMeet n' Brawl Garbage----------------Deep ThoughtsSupport  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by angry bikers.