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FJR Motorcycle Forums
Technical & Mechanical Problems
Yellow Exhaust
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<blockquote data-quote="ionbeam" data-source="post: 424500" data-attributes="member: 277"><p>Riding in the rain will cause the yellowing to appear worse. Washing and a bit of polishing will usually reduce the yellowing a fair amount. Yellow isn't such a bad color, blue is. The cat mixes all the head pipes together so post cat the color is no indication of which cylinders are causing the problem. In addition, cyls 2 & 3 head pipes share a 'balancer' cross pipe.</p><p></p><p>While your bike is new and breaking in (under 5k miles) I wouldn't be too concerned about straw colored pipes. If you haven't taken time to specifically wash and perhaps polish the pipes, do try that. All FJRs have some discoloration of the pipes.</p><p></p><p>Even if you haven't ridden in the rain you ought to wash the pipes and see if that helps reduce the yellowing to a less alarming shade. Pipes whose color results from excess heat will not clean up much with a wash.</p></blockquote><p></p>
[QUOTE="ionbeam, post: 424500, member: 277"] Riding in the rain will cause the yellowing to appear worse. Washing and a bit of polishing will usually reduce the yellowing a fair amount. Yellow isn't such a bad color, blue is. The cat mixes all the head pipes together so post cat the color is no indication of which cylinders are causing the problem. In addition, cyls 2 & 3 head pipes share a 'balancer' cross pipe. While your bike is new and breaking in (under 5k miles) I wouldn't be too concerned about straw colored pipes. If you haven't taken time to specifically wash and perhaps polish the pipes, do try that. All FJRs have some discoloration of the pipes. Even if you haven't ridden in the rain you ought to wash the pipes and see if that helps reduce the yellowing to a less alarming shade. Pipes whose color results from excess heat will not clean up much with a wash. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Yellow Exhaust
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