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Carburetor/fuel tank/air box
- lucasr225
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1981 kz750 e2 standard 4
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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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- lucasr225
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1981 kz750 e2 standard 4
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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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- lucasr225
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1981 kz750 e2 standard 4
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- Patton
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When gasoline has risen high enough to flow through the main carb bore into the air box, some of the gasoline may have also flowed forward through the intake port, then down past the pistons into the crankcase.
Good Fortune!
1973 Z1
KZ900 LTD
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- lucasr225
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1981 kz750 e2 standard 4
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- TexasKZ
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lucasr225 wrote: It only seems to come pouring out of the airbox when the petcock is in the off setting when it is on thee on setting or res nothing comes out of the tank when the tank is off the bike.
This is odd.
When working properly,
OFF = no fuel flow
ON = fuel flows until there is a gallon or so left (each model is different, I don't know about yours.)
RES = allows the last bit of fuel to flow.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- lucasr225
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Edit: spoke to the old owner (my foreman) he told me that even tho it says off it is a prime setting and that he always left it set to on... Idk about that though.
1981 kz750 e2 standard 4
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- TexasKZ
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If the petcock has only a fuel line fitting, it is manually operated and should be marked ON, RES, OFF, and fuel should not flow in OFF. Fuel should flow in the other two positions, assuming the fuel level in the tank is above the RUN tube on the petcock.
This valve works the same whether the engine is running or not.
Posting some pics might be helpful.
Either way, fixing whatever is allowing fuel to flow into the air box is the first order of business. If the carbs were were working perfectly all the time, a petcock would not even be needed, but since gravity will overcome even the tiniest difficulty in the needle and seat valves, a petcock becomes a safety necessity.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- lucasr225
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1981 kz750 e2 standard 4
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- dkoz
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1978 LTD B2 smashed
1978 Z1R D1
1978 A2
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