petaminox
Junior Member
Hi guys,
I just installed a JT 17-tooth front sprocket (what blasphemy) in hopes of lowering my RPMs on the highway as that's where I'm mainly on. Everything's real kosher, but my FZ seems to have developed a weird vibe.
In 4th gear, travelling between 65-75 km/h, the bike develops a pulsating vibrating felt most strongly through the foot pegs. It almost feels like the chain had a tight spot and was scrapping something.
However, I doubt it is the chain for two reasons. First, travelling at 65-75 km/h in ANY OTHER GEAR does not produce said vibrations. Second, swapping back to my 16-tooth sprocket removes the vibration.
I have tried cleaning and lubing the chain, aligning the wheel, checked the sprocket installation and such without any luck. I've also read somewhere that this may be a product of harmonic vibrations... Anyone else have had such an issue, and perhaps a solution?
I just installed a JT 17-tooth front sprocket (what blasphemy) in hopes of lowering my RPMs on the highway as that's where I'm mainly on. Everything's real kosher, but my FZ seems to have developed a weird vibe.
In 4th gear, travelling between 65-75 km/h, the bike develops a pulsating vibrating felt most strongly through the foot pegs. It almost feels like the chain had a tight spot and was scrapping something.
However, I doubt it is the chain for two reasons. First, travelling at 65-75 km/h in ANY OTHER GEAR does not produce said vibrations. Second, swapping back to my 16-tooth sprocket removes the vibration.
I have tried cleaning and lubing the chain, aligning the wheel, checked the sprocket installation and such without any luck. I've also read somewhere that this may be a product of harmonic vibrations... Anyone else have had such an issue, and perhaps a solution?