Please read my plugs.

[Guest]

The valve's have been shimmed, the carb's rebuilt, and bench synced. I can't afford the full sync at this point in time. I've been buying too many NOS part's for my 72 Yammy project. But I'm getting ready to show the GS some love. After all, it's my daily driver to work.

I get a little off idle stumble. It clears right up.

I've had 2 different people tell me it's way too lean. But after looking at a youtube video, it says it's too rich because of the black around the base.

I'm running the specified D8EA plug's. So what do you guy's think. Thanks

[Nessism]

Not bad. Not rich.

Have you played with the pilot mixture screws? Might help to do so.

[Quick Cal]

Truthfully. I haven't touched this thing since last year. But I had the same problem then too. I can't remember what I've done.

I'll check the screw's tomorrow. Do you think I'm a little lean?? Thanks

[BigD_83]

#4 in the upper photo is the only one that looks a little rich, but it's not incredibly sooty. In the upper photo, it almost looks a little oily. In the bottom photo, #4 loses some of the blackness.

To my eye and on my monitor the electrodes, with the exception of #2, look a touch on the white (lean) side, but I do see some brown in all of them as well.

Under what conditions did you pull the plugs? It might be that your idle mix is a bit lean, but you are running a bit rich in the mid-upper throttle ranges.

[Suzuki_Don]

Number 4 is a bit rich, turn the mixture screw IN a 1/4 turn.

[Quick Cal]

Man you guys are good,,or I have really bad eye's,,,which I do. It's hell getting old.

I'm holding these plug's in my hand and I can't see what you guy's see. I'll try your recommendation's and see what happens.

One thing to mention. When I first start the bike in the morning, I get some smoke out of the exhaust on the right side. It takes about 10-20 seconds to burn off. I'm assuming I have a leaking valve seal. Do you think that could be what you're seeing on #4 plug. Thanks.

[platinum2]

Man you guys are good,,or I have really bad eye's,,,which I do. It's hell getting old.

I'm holding these plug's in my hand and I can't see what you guy's see. I'll try your recommendation's and see what happens.

One thing to mention. When I first start the bike in the morning, I get some smoke out of the exhaust on the right side. It takes about 10-20 seconds to burn off. I'm assuming I have a leaking valve seal. Do you think that could be what you're seeing on #4 plug. Thanks.

there white! "LEAN"!!! want tan color, dont worry about the black circle
the center and electrode is what you look at

[mrbill5491]

Way too lean. You running a stock filter or pods? How about the jetting of the carbs? Keep that up you'll burn a valve and/or piston. Plugs need to be a medium to dark tan at the electrode.

[Quick Cal]

Everything is bone stock.

So should I raise the needle's a notch.

[mrbill5491]

How old are the plugs? If they are brand new then they haven't burned in yet (got their running color.) Though if they are older plugs then You need to richen the mixture some how. Maybe the main jets as well? Check for air leaks, vacuum leaks first those will lean out the mixture as well. If those check out okay then the fun starts.

Like BigD 83 said what conditions did you pull the plugs? How long was it running, idling, twisting the throttle, were they under load like for ride? etc etc, Process of elimination starts.

Take the bike out and run it at 60-65 mph for a few miles then close the throttle and hit the kill switch. Yes make sure the clutch is in when ya do that lol. Then pull a couple of the plugs and see if the color has changed any.

[DannyMotor]

Take the bike out and run it at 60-65 mph for a few miles then close the throttle and hit the kill switch. Yes make sure the clutch is in when ya do that lol. Then pull a couple of the plugs and see if the color has changed any.

That's the way to do it.

The FUEL screws are very sensitive... so make sure you do your adjustments in 1/8th turns, not 1/4 turns like your AIR screws... especially on a stock bike with stock airbox and exhaust.

They don't look all that bad... 1/3/4 all look to have a slight carboning on the electrode, but not aweful.

Ride the **** out of it for a few days... then do a plug chop. If you're not feeling any hesitation/hanging idle/poor cold-startup... everything should be A-OK to just ride it like you stole it and break those plugs in.

[Quick Cal]

Plugs were new last year. Can't have more than 1k on them. I've never done a highway chop. I just pull them when I come in from a ride.

I'm a little confused. Does turning the pilot screw (the one I had to remove the plugs to get to) out,,counterclockwise, make things more rich, or more lean.

I just checked where I was at on the pilot screws. It was only 2 turns out. I put them at 2.5 and went for a short ride. It might be wishful thinking, but it seems a tad better. It did burn off some of the oily looking stuff from the plugs.

I'm going to go pull all the plugs and post a pic.

[Quick Cal]

Ok. They seem to be burning off some of the black stuff on there. They are defenetly getting cleaner. I only rode it 5 miles. They don't look quite as white and porceileny. More ashed over.

By looking at the new pics it seems I need to put some miles on it and finish burning them clean.

Does turning the pilot screw out, counterclockwise,, make it more rich, or more lean. I just want to make sure I'm going the right way so I don't go too lean and mess things up.

[gearhead13]

So, D8EA plugs. What are these off of because a gs650 would have a b8ea or something with 14mm threads.

[Quick Cal]

They're the right plug. That's what every chart I've seen, or part's house calls for

Look here for 82 GS650G. Second page, second row.

http://members.dslextreme.com/users/storagecliff1/images/General_Suzuki_Specs.html