Recently, when I look at customers’ mufflers… Hmm… There are quite a few things wrapped in silicone hose .
But why? Semi-transparent? Am I the only one wondering? I’ve also researched various silicone hoses and stocked up on the right size for this application.
Today’s Recommended Maintenance Item
Item: Yoshimura (YOSHIMURA) Genuine Muffler Spring
Signs of replacement: Spring is rusted, moves easily when touched by hand (tension is lost), vibration-damping rubber is falling apart.
Why replace it?:
Engine heat and vibration cause metal fatigue, leading to sudden breakage.
If it breaks, you risk exhaust leaks or, in the worst case, the silencer dropping off while riding—a serious accident.
Conclusion: It’s an inexpensive part at just a few hundred yen per piece. Preventative maintenance—replacing it “before” it breaks rather than “after”—is absolutely the right call!
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Preventative Maintenance: Refreshing Exhaust Springs Before They Snap.
Item: Yoshimura Genuine Muffler Springs (with anti-vibration rubber covers). Details: Exhaust springs are often overlooked, but they endure extreme heat and constant engine vibration. Over time, they stretch, rust, and suffer from metal fatigue. If they snap while riding, you risk exhaust leaks or even dropping your silencer on the road. Verdict: Don’t wait for them to break. Yoshimura’s genuine springs come with rubber covers that eliminate annoying resonance noise. Replacing these inexpensive parts is the best “cheap insurance” to keep your bike safe and sounding great!
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