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Broken Carb insert.

Started by WorkingProject, August 09, 2010, 09:56:55 AM

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WorkingProject

Hey guys.  I have been trolling these forums for about a week now, and it has some GREAT information on it.  You all have really helped me out of some binds during my carb. rebuild.  I have never done this before or even owned a car with a Carburetor before.  So I am in uncharted water with what I am doing (which makes it fun.).  

So looking at a few older posts and some nice write-ups from you all on here has really helped, but I have run into some problems that seem to be unique to, well, just me.  

So I picked up a 97 GS500 about a week ago.  It was running bad, and had ZERO low end.  So I took off the gas tank/seat, and noticed that the cable to my manual choke was frozen open!  So the sliders in my carb were stuck down.  Well, that explains the breathing problem.  So I had to cut the cable (ordered a used one from an 04 off Ebay).  

After I cut the cable.  I tired to start the bike again.  I pushed the choke bracket in (closed the sliders) and the bike started just fine.  After I got it warm.  I let go of the bracket and the bike died on me.  So I started it back up, and tried to warm it up again.  I did this about 4 times and still it would not idle.  I decided to take of the carbs off and clean them.  

Once I got everything off the bike.  I started spraying the carbs down with carb cleaner.  The color of junk that came out looked like pretty brown, so I decided just to take apart the whole assembly get new seats,floats, gaskets and clean it real well.  

The whole process was quite simple (seemingly) until I took out one of my slider guides that hold the "Emulsion" tubes.  Check this out....



I know this isn't a good thing, because it was broken before I got it.  You could see where someone had put some type of glue or something in the hole to hold the broken piece down.  At first I thought, ok...no big deal.  I will just find a new one (or used one)....That is next to impossible.  They don't even make this piece, you have to order a whole new carb.  This is unsettling to say the least.  My project is now looking like it might be more than I prepared for.  So I just decided to glue it back with some super glue.  I build model cars for fun, and had plenty of things to help with this process.  It turned out nicely and it's well sealed.  So I hope it holds out for me.  (so problem solved, i hope).

My next possible "problem" with the bike.  I was thinking about re-jetting the bike because it came with the K&N Lunch box filter on it.  Well.  I took off the float bowls and noticed the main Jet said 140 on it.  I have never done this before, so I am guessing this is a 140 jet, meaning it has already been re-jetted, right?



While I had everything off I decided to take off the spark plugs, and this is where things were strange.  I took off the right plug (sitting on the bike facing forward) and it had a nice whiteish tip on it.  The left side was covered in fuel and fouled out like crazy!  I mean this thing was BLACK!  So now I know it was some sort of carb problem.

I sprayed everything really well with carb cleaner, took out the main jets, but left the others inside.  (so i am not sure what the other jet is set at, guessing a 40 or 50).  Sprayed it down with WD40 and got some of the corrosion off of it, then rinsed it with DAWN/Water mix and flushed it out with tap water.  I'll lube everything once my rebuild kit gets here and put it all back together.  

So I guess my question is, what else should I do while I am here at this point.  The bike has signs of being tampered with, and mismatch screws in places...so I know someone has messed with it.  It has 16000 miles on it.  So it has plenty of life left on her.  She just needs some love.

Thanks
-Cody

Paulcet

Yeah, that slider guide is not supposed to come out.  No harm in gluing it back together, it can't get worse really.  I would suggest you replace o-rings while you're in there.

'97 GS500E Custom by dgyver: GSXR rear shock | SV gauges | Yoshi exh. | K & N Lunchbox | Kat forks | Custom rearsets | And More!

WorkingProject

I am.  I would think the rebuild kit comes with it, right?  Sorry for the newb questions, but I just assumed that a carb rebuild kit, came with everything to rebuild one. lol

JAY W

Hi,check float heights whilst your in there and pay special attention to the smaller air jets (use a screwdriver that fits well as the heads round easy) and remove mixture screws with springs and very small o`ring and clean airway.Then junk the screws that hold the bowls on and fit allen bolts.
89 GS5,Squire sidecar,risers,Skidmarx bellypan,R1 oval can race can baffled,96 forks,beefy kwak shock,heated grips,scotoiler.LED Clocks.

WorkingProject

Thanks man. That is something I would have never thought about.

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