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FJR Motorcycle Forums
Technical & Mechanical Problems
Gas Cap Modification
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<blockquote data-quote="Fred W" data-source="post: 1420173" data-attributes="member: 3828"><p>Not sure exactly what you disagreed with me on since I never said anything about the gaps at the bottom of the cap except that there was plenty of space to vent through them. A prior post had inferred that we needed to enlarge those gaps, and my position was that this was not the cause of the gas geyser problems.</p><p></p><p>The ball is clearly a check valve on a vent that is intended to be open normally, but since tanks were developing pressure, it was malfunctioning by sticking closed at times. That was the point of removing the check valve ball, to eliminate the failure mode. Never heard of a gas geyser on any tank that had been castrated.</p><p></p><p>There were also never any problems reported associated with removing the ball, like were forecast, such as fuel leakage after a drop. Just like there were never any problem with the hundreds of thousands of bikes produced before emissions regulations nazis restricted free venting fuel tanks.</p><p></p><p>Im sure we all breathe so much better because gasoline vapors are held inside all of the new motorcycle gas tanks with their evaporative emissions restrictions.</p><p></p><p>But thanks for recalling a 10 year old thread from back when we had things to discuss.</p></blockquote><p></p>
[QUOTE="Fred W, post: 1420173, member: 3828"] Not sure exactly what you disagreed with me on since I never said anything about the gaps at the bottom of the cap except that there was plenty of space to vent through them. A prior post had inferred that we needed to enlarge those gaps, and my position was that this was not the cause of the gas geyser problems. The ball is clearly a check valve on a vent that is intended to be open normally, but since tanks were developing pressure, it was malfunctioning by sticking closed at times. That was the point of removing the check valve ball, to eliminate the failure mode. Never heard of a gas geyser on any tank that had been castrated. There were also never any problems reported associated with removing the ball, like were forecast, such as fuel leakage after a drop. Just like there were never any problem with the hundreds of thousands of bikes produced before emissions regulations nazis restricted free venting fuel tanks. Im sure we all breathe so much better because gasoline vapors are held inside all of the new motorcycle gas tanks with their evaporative emissions restrictions. But thanks for recalling a 10 year old thread from back when we had things to discuss. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Gas Cap Modification
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