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Pure white deposits in petcock
- 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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- jackleberry
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Spray the part in WD-40 and this stuff will wipe right off. You don't have to clean every part of the petcock, just where the rubber parts contact the metal parts...
While you're at it, take your gas cap apart and clean it the same way. Those deposits accumulate in the vent passages.
1997 KZ1000P (P16)
2001 KZ1000P (P20)
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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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- 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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- jackleberry
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jdvorchak wrote: I didn't describe it very well other than the color. Actually it is not real hard like calcium but more like chalk. Like I said this is a new one on me.
Yeah. Chalky white deposits are exactly what gasoline leaves behind when it evaporates. WD-40 removes it instantly. No need to soak.
1997 KZ1000P (P16)
2001 KZ1000P (P20)
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- Nessism
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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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- jackleberry
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jdvorchak wrote: Turns out the vinegar soak worked great. I ended up polishing the port where the vacuum valve goes with aluminum foil, put in a new O-ring and it works perfectly now. I used WD-40 on the fuel cap to clean up the vent port and it looks clean now. I don't know how I'd bench test the vent so I went for a 10 mile ride and it was still flowing gas so I don't think I have a vent problem. Keeping the spare key in the fuel cap when I ride just in case.
You can test the vent by pumping air into the tank through the petcock outlet with a bicycle hand pump. You should hear bubbles through the gas and then a hissing/humming from the cap. Pressure should dissipate completely within a few minutes.
1997 KZ1000P (P16)
2001 KZ1000P (P20)
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- z1kzonly
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It will turn into a sand like substance. Marvels Mystery oil helps, along with a PTFE blower lube. I f it sits longer than 1 week.
Maybe it is a sealer in the tank?
Clean it out and start over with an inline filter.
Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!
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- jdvorchak
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An aside note. I changed the fuel filter in my 2010 Ultra Classic, yesterday, and found those same white deposits on the fuel pump electrical connector! I rarely if ever run any gas additive in my Harley because I ride it daily. But I'm going to put some MMO in there now. On all of my older bikes I alternate MMO and Lucas injector cleaner about every 3rd tank full because I don't ride them all daily. But I do ride them enough to run a tank full every couple of weeks. Now I'm wondering about my Honda Civic because I only drive it about once a month. .... Hmmmm
Thanks for the tip.
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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