Question about 2005 Honda NX4 Falcon

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Honda falcon nx4 gas leak from carburator when I turn the valve on, only when it is parked

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  • Honda Master
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While it COULD be the float level is set too high, if you haven't had the float bowl off, more likely it's some crud in the fuel got stuck between the float shut off needle and it's valve seat.
This doesn't allow the float needle to shut off completely, and fuel will keep coming into the float bowl, even though it's already full.
This is more pronounced with the engine shut off, and sometimes at idle, and less so as the engine revs increase.
This is because the faster the engine is running, it's burning more fuel, and better able to keep up with the overflow.

Posted on Apr 16, 2014

  • Ferni
    Ferni Apr 17, 2014

    Good suggestion! however, it could well be your carburator float as well. When not adjusted properly or defective will cause leakage. Look for the adj, specifications and check it. If no specs are available and you happened to have two carburators and, one is not leaking. Compare their mesurements. Remove the carbs bowls and compare them by, checking the drop adj and level adj. In other words mesure from the float to the carb housing upside down (level) and the drop from the float to the carb housing (upright position).



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SOURCE: i read that the bolts after an oil change have to

All bolts on any type of machinery or vehicle have what is known as a "torque value". This is a value measured in foot pounds, inch pounds, newton meters, or whatever scale is used in the country you live in to gauge how tight the bolts must be tightened. This serves two purposes. First, it prevents damaging of the threads on the device. Secondly, to ensure that any warpage caused by tightening of the bolts does not exceed design specifications. Now, from a practical point of view, most bolts that were loosened during an oil change can be tightened to a reasonable tension and you will be safe. Just don't over tighten them but don't under tighten them either.

Posted on Dec 13, 2009

  • 3301 Answers

SOURCE: 2002 Honda 100R Need

as a starting point, screw them all the way in, "loosely" then out 2 1/2 turns

Posted on Jul 04, 2011

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