HUGE pics, couldn't see em at all... sized them down for ya.

Quote from: Wagoneer on June 26, 2013, 06:26:10 AM

Doesn't need an elbow there from what I remember, but definitely shouldn't be kinked like that... try to reroute to get the kink out.  I can't tell for sure, but that looks like your vacuum line to the petcock, in which case would cause lean issues.

Edit: Vacuum hose does need elbow, see below post for rest of the info.

- Bboy

There's nowhere else to route it to, it's squeezed up against the airbox. Seems like a pretty bad design.

Tried to edit my last post again but botched it up... Anyways, my memory is playing with me right now, but in thinking there IS one supposed to be there... Just trying to confirm with a pic somewhere

Here we go, scroll to bottom of this link.  Hose routing diagrams shows an elbow there for the vacuum hose.

http://wiki.gstwins.com/index.php?n=Main.HoseRouting

-Bboy

Quote from: Wagoneer on June 25, 2013, 06:07:28 PM
Is it safe to run some seafoam in the gas to clean out the fuel system?

Please for the sake of Lucien Bouchard dont.

You can use seafoam all you want in your carb cleaning mix ... spray it, toothbrush it on ... anything.
If you dump it in the tank ... it does what its designed to do ... clean out all the gun and crap ... and when it does that in a nice little 4gal tank with 1 gal crap pockets ... guess what ... it all ends up in the carb pronto.

If you're running seafoam in the tank ... make sure you have the tank off the bike ... shake and slosh and bounce and rotate the tank like a maniac, drain it out, and follow it with 1/2 gal of clean gas to be sloshed and removed, and try to after that get the tank as dry as you can ... drop a long strip of a towel in it while holding one end, slosh it, and pull it all out ... repeat till dry.

Seafoam cuts through all the crap. You need someplace to go with that when its done and your carb is the wrong place.

Cool.
Buddha.

I know there's stuff I probably can't see but the inside of the tank looks spotless.
I went in there with my buddy's scope and I can't find a spec of dirt or rust anywhere.

I know, stop being lazy and clean your carbs properly. I'll probably end up doing that.

Quote from: Wagoneer on June 26, 2013, 07:34:46 AM
I know there's stuff I probably can't see but the inside of the tank looks spotless.
I went in there with my buddy's scope and I can't find a spec of dirt or rust anywhere.

I know, stop being lazy and clean your carbs properly. I'll probably end up doing that.

In that case ... just use a funnel and put seafoam in your carbs and let it sit a few hours, drain and flush with gas ...

I dunno, I've been bitten by a seafoam dumping fool, one that I said OK to when hit with a barrage of 1000 questions ... after he changed his mind about buying my bike after making me drive 300 miles to altlanta and made me change a wheel inside his apartment without any tools etc etc etc ... Yea long story ... the moral of which is ... dont sell a bike to a clueless moron when he's 300 miles away and offer to fix it upon screw up unless your arms are 300 miles long.

If you want to run seafoam ... and you sure your tank is clean ... OK fine ...
But dont put seafoam in it and let it sit ... that seafoam tank needs to be run - do it when youre going to ride the bike evertyday or atleast as often as you possibly can.

Cool.
Buddha.

So I can drain the tank and put in a funnel and put seafoam straight into the carbs? That won't hurt any of the gaskets or o-rings? Do I crank it a few times while doing that or just let it sit?

You dont need to drain the tank to put it in the carbs.
You can drain the carbs and use a funnel, but you cant ride it that way, it will be pure seafoam, the bike wont run.

If your tank is 100% clean, you can put say 1/3rd the can of seafoam in a tank ful and ride it.

That should work, but if it gets loose a unknown chunk of crap and clogs yoru bike up, dont blame me.

Cool.
Buddha.

I did the following once with seafoam with no negative effects.  I was having some lean surging in mid-range at 70 mph.  I also cleaned the gas cap vent at the same time, so I don't know for sure if the seafoam or that did the trick, but it was better when I was done.

1. Take the seat off, and find the carb air vent tube.  It goes to the upper T connection between the carbs.
2. Start the bike
3. Put small amounts of seafoam directly into the carbs through the vent tube, but make sure it's not enough to kill the engine.
4. Rev the engine a little bit to suck the seafoam/gas mixture through all the carb passages.  Don't be surprised when the bike doesn't want to rev all the way due to the seafoam.  You will also probably see white smoke in the exhaust.  This is normal due to the seafoam cleaning deposits in the engine.
5. Repeat steps 3 and 4 a few times.
6. Turn off the bike, and drain the carbs of the leftover seafoam gas mixture.
7. Set the petcock on prime to fill the carbs with fresh gas from the tank.

It seems to be running okay now with new plugs and the stock air filter back in, but I've only driven it around town and haven't gotten a chance to ring it out at high speeds yet. Could also be getting those fried plugs out as well.

So the bike seems to be running great. With the stock air filter back in and fresh plugs I've experienced no surges or misfires or loss of power in the upper RPM's anymore. It also seems have to have gone back to using a 'normal' amount of oil (seems to be burning about half as much as before). But I pulled the fresh plugs just to verify the fuel mixture and they're still showing signs of running lean. They're still very white. So is it safe to assume the bike is still running lean but it's back in the 'safe' area of lean?

When I checked the plugs it was a few hours after a pretty hard run on the back roads. Few long runs through the gears to top speed and then about a 10min cool down back to my house.

soo The Buddha or someone else will chime in..

are the stock plugs out of the pilot ("air mix") screw, or are they still plugged from the factory? You could probably give it a bit more gas and get away from the lean. Tuning is not my specialty, so do your won research here.

That just adjusts the idle mixture, it wouldn't have any effect past 1/4 throttle.

I'm going to fix that kink in the vacuum line going to the petcock and then after that if there's no easy to way to get a bit more gas in the top-end I'm just going to leave it for the season. It's running great, the excessive oil use is gone, top-end power is back, there's no sense in taking it off the road peak-season, especially during our tiny riding season up here. I figure these bikes run super lean from the factory, so I don't think it's at a dangerous level anymore (hopefully).

Quote from: RossLH on July 06, 2013, 10:29:29 PM
That just adjusts the idle mixture, it wouldn't have any effect past 1/4 throttle.

Wow duh, thanks for slapping me with the obvious.