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GAS LINE QUESTION
- dman3998
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79 1000 LTD. my carbs are tied together with a single 3/8" gas line port inlet. The Tank petcock I ended up with has two 5/16" port outlets. I could go with two 5/16" to a Tee then to a 3/8" line but there is not a lot of room between the petcock and the inlet port.
if I just plug one of the 5/16" outlets and go from a single 5/16 up to the 3/8" will that be enough gas flow? not planning on any racing or high speed runs, just normal street and highway cruising.
Thanks
Dman
Dman
SE Idaho
"Smart only goes just so far, STUPID is UN-limited"
79 KZ1000 LTD
Honda XRL650L
Yamaha RD350B
Yamaha DT400B
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- Patton
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Getting down to the last few details. it is so true that the last 10% of the job takes 90% of the time.
79 1000 LTD. my carbs are tied together with a single 3/8" gas line port inlet. The Tank petcock I ended up with has two 5/16" port outlets. I could go with two 5/16" to a Tee then to a 3/8" line but there is not a lot of room between the petcock and the inlet port.
if I just plug one of the 5/16" outlets and go from a single 5/16 up to the 3/8" will that be enough gas flow? not planning on any racing or high speed runs, just normal street and highway cruising.
Thanks
Dman
Tank petcock I ended up with has two 5/16" port outlets--- is it a manual or vacuum petcock.
And if vacuum, are there two fuel outlet nipples plus one smaller vacuum nipple?
Good Luck!
1973 Z1
KZ900 LTD
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- RonKZ650
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321,000 miles on KZ's that I can remember. Not going to see any more.
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- Kingchiefa
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- To each thier own.
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I just redid the fuel lines on my 79 1000 Ltd and Igot a new petcock from Z1 that only had 1 out let, my carbs of course have 2 inlets. I just tee'd the lines together, though I have a concern on my hose length now. My first line, the one closest to the petcock is shorter than it was and I sometimes get some over spill from my second carb. I'm hoping that is what the problem is but I was told my jet my be sticking, so Just be wary of the fuel line length and check into the single port petcock on Z1, it is real pretty too.
KC
1979 KZ1000 ltd b3 Currently in Troy, PA. Hope to some of you on the road.
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- dman3998
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so what bike/year had the carbs all tied together?
Maybe our resident carb expert knows something. He rebuilt the ones I have just a few months ago.
Dman
SE Idaho
"Smart only goes just so far, STUPID is UN-limited"
79 KZ1000 LTD
Honda XRL650L
Yamaha RD350B
Yamaha DT400B
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- Patton
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Dip carb end of new fuel line in almost boiling water for a few moments to soften it before attaching to the fuel pipe (the single Tee inlet at carbs). It should go on readily and hold good and tight upon cooling, likely without needing a clamp.
Both petcock nipples function the same. Pick whichever you prefer, and attach the fuel line.
Cap off the other petcock nipple not being used. An ordinary carb vacuum nipple works just fine.
Insert an in-line fuel filter at most convenient preferred location.
I don't use or need any clamps on my fuel lines, and have never had a leak or disconnect over many years and many miles. Am of course using the best quality grey kink-resistant fuel line available. Tygon is merely okay, because it eventually hardens, but is serviceable where better line isn't readily available.
Use sufficient line length for a gentle loop throughout.
Here's my fuel line system on Z1 smoothbores.
Good Luck!
[Click on image to enhance view]
1973 Z1
KZ900 LTD
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- Patton
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1973 Z1
KZ900 LTD
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- Patton
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- Patton
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- gane
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[img][/img] 1977 KZ1000A1
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