carbs leaking gas

  • hydrolazer
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carbs leaking gas

25 Sep 2026 04:16
#927881
where are you guys getting your carb kits for a 1979 kz1000 ltd b3? also i had better get gaskets for the accelarator pump,,,tia,,,,hydro
\'79 kaw 1000 ltd

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  • asphalt900
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Re: carbs leaking gas

25 Sep 2026 05:01
#927884
Inquire with Nessism, he has all kinds of complete VM Mikuni kits. Just to verify though because the 1979 and 1980 28's looked similar there were slight differences and kit ordered will reflect this. Your 1979 "should" have these bigger pilot air adjust brass screws, not the smaller recessed ones. The photos are of a set i had laying around but for the 1979 A3       or 16001-1131. Slight differences in jetting but everything else the same. Just a templet to make sure you get what you seek. Have you established exactly where they are leaking from? Are they fully functional, just leaking?

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Re: carbs leaking gas

27 Sep 2026 15:11
#927955
the darned things quit leaking after i ordered new carb kits....oh well i have them for later i guess
\'79 kaw 1000 ltd

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Re: carbs leaking gas

27 Sep 2026 17:09
#927962
the darned things quit leaking after i ordered new carb kits....oh well i have them for later i guess

The rubber O-rings and fuel Tee's use nitrile / Buna N rubber.  Nitrile expands slightly with gasoline, and it also shrinks, checks, cracks, and turns hard with age.  It's common for old carbs in need of a rebuild to leak if the carbs sat for some time.  Said carbs, sometimes stop leaking when the rubber soaks up some gasoline and swells.  This a signal that you are on the ragged edge, and the leaks may return.  

 
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