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White calcium looking stuff in float bowls
- jdvorchak
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thanks in advance.
Don't fix it until it's broken.
John
83 KZ550M1
83 KZ1100LTD
Also own:
2010 Harley Ultra Classic Limited, 2008 Harley low rider 71 CB350/sidecar
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- TexasKZ
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1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- Irish Yobbo
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Strip all the parts down as much as you can, scrape away as much of it as you can ,and then soak in a mild acid. A phosphoric acid (rust remover) will work. But if it's just the bowls that are the problem, it doesn't need to be perfect. If you can't remove it with cleaning and elbow grease, it's not going anywhere and it's safe to stay there.
The oxidization is caused by moisture. Can be from water ingress, or from ethanol in fuel (ethanol will bind with water, separate from the rest of the fuel, and sink).
1981 KZ750 LTD
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- SWest
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- 10 22 2014
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Steve
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- Irish Yobbo
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1981 KZ750 LTD
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- jdvorchak
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Don't fix it until it's broken.
John
83 KZ550M1
83 KZ1100LTD
Also own:
2010 Harley Ultra Classic Limited, 2008 Harley low rider 71 CB350/sidecar
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- SWest
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- 10 22 2014
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Steve
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- loudhvx
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SWest wrote: Some pivot pins are a semi press fit. You can use a thin punch or a nail with a flattened tip to tap it out. DON"T HAMMER ON IT, tap on it.
Steve
Steve's warning is critical. Also, support both standoffs when you press out the pin or one will break.
The pins, from the factory are not pressed. Normally they should just fall out , but corrosion can definitely bind them tight.
Here's a website for those carbs...
s3.amazonaws.com/gpzweb/TK22mainPage/TK22mainPage.html
Too bad those carbs are so scuzzed up. They are usually very good, robust carbs... very simple and easy to work with and very easy to do jetting on.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- Nessism
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First thing I'd do is fully ungang those carbs. A lot of people are afraid of doing this but it's not overly difficult. Short cuts are long cuts when it comes to cleaning carbs so know this going in.
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- martin_csr
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Acidic cleaners. Do not leave the carburetors soaking in any acidic solution for too long. Someone here on KZR reported that he ruined his brass parts after leaving them in a lemon juice solution overnight. Pine oil cleaners that actually contain pine oil (not Pine-Sol) are good for cleaning the carburetors, but I don't know how good those products would clean that white oxidation. Pine-O-Pine has a high pine oil content. pine-sol no longer contains pine oil, but there are off-brand pine cleaners that still do. Pine oil cleaners are typically pH-neutral & are a good petroleum solvent.
.....
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- loudhvx
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Those in this thread are exceptionally bad, though, so if you can do it, ungang very caerfully. You will have to polish any rust off of the throttle shaft to extract it and the same for the choke shaft otherwise you run the risk of deforming the throttle shaft holders. Also the bell-crank screws will be very very tight. They often require an impact driver. But that is very risky on a pot metal holder and the shaft can bend because it is not supported in the area you need to impact. So you will need to rig up a shaft support in a vice but one that does not scratch or deform the shaft. When I do it, I use a block of wood in a vise as a back support for the shaft. Make sure to use a JIS screwdriver tip or the bell crank screws will deform easily. Unless you can rig up a support, it may take an extra set of hands to hold the carbs while you use the impact driver and hammer.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- old_kaw
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Also the set is too large to fit into a can of Berryman's carb cleaner. Forget the pine sol, or any of the other crap. it will turn the carbs black and eat the factory sealers that seal the porosity in the cast bodies. Don't soak anything half submerged, it will make permanent marks or lines in the castings, and will be a most certainly a regrettable mistake. Soda blasting works well, and is water soluble. Expect a dust cloud your neighbors will enjoy.
I polished what brass I could access. Just a little touch while it's in pieces. ( what the heck, it was 19 * F when I did this) I polished the needle / seat bores and the fuel interconnect bores with my dremmel tool and a polishing attachment. Some lube is necessary on the o-rings to get them to slide into the bores nicely.
Attachment not found
1981 Kawasaki Kz1000K1
Located in the Saint Louis, Missouri Area.
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