GS850 idles high, reeks like fuel

[Guest]

I'm looking for a little direction on what to do next here.

81 GS850G freshly rebuilt carbs, resealed airbox, new manifold O-rings and 1 new manifold boot, new airbox boots, checked valve clearances only 2 under .04(lowest feeler I have). I have a fresh battery, and I rewired the fuse box, I only was getting 8v at coils, now I get 11.5v.

I bought the bike with a K&N drop in(freshly cleaned and lightly oiled), and mac 4-2 pipes, and still has factory jetting

I can start the bike without choke sometimes, but when it starts it idles at 3k RPM, when warmed up it idles at 2k RPM. I can put on the choke or let the clutch out a little and it'll level out at 1100 rpm. but when I blip the throttle it goes back to 2k rpm. Also the plugs are black(sooty) and the exhaust fumes burn my eyes.

Not sure what to test for/replace next. I'm going to redo the airbox seal again, because I'm not 100% that its sealed. and maybe do the coil relay mod to get just a little more juice up there.

[Staninator]

How many turns out are your air/fuel screws? Running too rich?

[Zero260]

I started at 2.5, but thought the high idle was from the screws, so I think I'm at 1.5 right now

[RobG1970]

I'm looking for a little direction on what to do next here.

81 GS850G freshly rebuilt carbs, resealed airbox, new manifold O-rings and 1 new manifold boot, new airbox boots, checked valve clearances only 2 under .04(lowest feeler I have). I have a fresh battery, and I rewired the fuse box, I only was getting 8v at coils, now I get 11.5v.

I bought the bike with a K&N drop in(freshly cleaned and lightly oiled), and mac 4-2 pipes, and still has factory jetting

I can start the bike without choke sometimes, but when it starts it idles at 3k RPM, when warmed up it idles at 2k RPM. I can put on the choke or let the clutch out a little and it'll level out at 1100 rpm. but when I blip the throttle it goes back to 2k rpm. Also the plugs are black(sooty) and the exhaust fumes burn my eyes.

Not sure what to test for/replace next. I'm going to redo the airbox seal again, because I'm not 100% that its sealed. and maybe do the coil relay mod to get just a little more juice up there.

hi, please check out this website..http://members.dslextreme.com/users/bikecliff/

[Zero260]

I have checked out basscliffs site, which is awesome. I was just wondering if someone else out there had a similar issue, and had performed something I haven't yet to be able to fix it, or just some ideas in general. I'm just fishing for thoughts right now, and will recheck everything this weekend.

[Nessism]

1.5 turns out on the pilot screws is too lean. Carb rebuild tutorial linked in my signature.

BTW, you adjusted those tight valves right?

[Zero260]

quick question, from what I've been reading I'm somewhat confused.

Does turning IN(tightening) the pilot screws richen or lean?

[GSOH]

quick question, from what I've been reading I'm somewhat confused.

Does turning IN(tightening) the pilot screws richen or lean?

Clockwise leans out mixture. Counterclockwise richens mixture. There is a great write-up kool_aid kid did on this called "Adjusting_Idle_Mixture_on_CV_Carbs" Do a search for it. Quite helpful.

[Zero260]

reset floats, resealed airbox, reoiled K&N drop in, new plugs gapped at .030. she finally runs pretty well, not perfect but rides nice, and idle doesn't hang at stops. I still need to adjust the valves, but I'm waiting for the tool, then I have to find out whats in there and get the correct ones ordered.