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FJR Motorcycle Forums
Technical & Mechanical Problems
Gas Mileage dropping - no reason I can see
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<blockquote data-quote="Big Sky" data-source="post: 1160701" data-attributes="member: 3460"><p>This is an interesting thread and I don't mean to hijack it but the scenarios are closely related, it seems. I sold my brother-in-law my '03 in spring of '12. I then purchased an '05. We rode together in '12 and '13 and the bikes, under similar loading conditions, got nearly identical mileage. However, I just finished a 2,750-mile tour with him, again under very similar loading conditions, and his '03 was now delivering 5 to 10 percent less fuel economy. But here's the kicker: when I rode behind him I could distinctly smell unburned fuel. Okay, so the bike may be developing a rich condition (bad sensor somewhere as with the OP?) but why is the catalytic not cleaning up the exhaust? Will a faulty or failing sensor not always throw a code? Yes, I'm putting my ineptitude on display...</p></blockquote><p></p>
[QUOTE="Big Sky, post: 1160701, member: 3460"] This is an interesting thread and I don't mean to hijack it but the scenarios are closely related, it seems. I sold my brother-in-law my '03 in spring of '12. I then purchased an '05. We rode together in '12 and '13 and the bikes, under similar loading conditions, got nearly identical mileage. However, I just finished a 2,750-mile tour with him, again under very similar loading conditions, and his '03 was now delivering 5 to 10 percent less fuel economy. But here's the kicker: when I rode behind him I could distinctly smell unburned fuel. Okay, so the bike may be developing a rich condition (bad sensor somewhere as with the OP?) but why is the catalytic not cleaning up the exhaust? Will a faulty or failing sensor not always throw a code? Yes, I'm putting my ineptitude on display... [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Gas Mileage dropping - no reason I can see
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