motocommuter
New Member
Hey All, just trying to narrow down a small vibration and figured I'd reach out for help. I have been noticing a small vibration at 4k RPM. I have searched the forum, and I do know there are already threads talking about the 4k and the 3k vibrations/throbs. However, those threads became very long and off topic. Plus, I am not wanting to know if it is normal. I really just want to know where it's coming from.
So, about 500 miles ago I changed my rear tire myself. I also pulled the weights off of the front and rear rim and installed the counteract balancing beads. Ever since then I have noticed a small fast vibration that makes the mirrors go fuzzy at 4k to 4.5k RPM. I can't tell if this is new, or if this was already there and I am just being hyper sensitive. I work a rotating 12 hour shift schedule, and I can tend to fixate on things that are minor. Basically, I am trying to figure out if I did something wrong with the recent tire change. This vibration happens at every single gear.
So, here's my thought process. If it was tire balance or improper mounting, this would happen at certain speeds regardless of RPM (example; going 60 mph with vibration in sixth, down shift to fifth and the vibration should still be present). Wouldn't that be the case if it was directly related to the tires? If it was the drive chain, shouldn't it be even more specific (example; vibration in every gear but at different RPM depending on speed and how much throttle is being applied)? In my case, this vibration is at 4k rpm in every gear. I have adjusted the chain three times to rule that out and added more counteract beads to the tires. So the question is......would you say this vibration is in the motor some where and has probably been there all along and I am just being crazy? I am totally fine with the amount of vibration. I just want to be sure it wasn't caused by me! Thanks guys, and sorry I am so long winded right now. Third cup of coffee, and I am chasing it with a Monster!
So, about 500 miles ago I changed my rear tire myself. I also pulled the weights off of the front and rear rim and installed the counteract balancing beads. Ever since then I have noticed a small fast vibration that makes the mirrors go fuzzy at 4k to 4.5k RPM. I can't tell if this is new, or if this was already there and I am just being hyper sensitive. I work a rotating 12 hour shift schedule, and I can tend to fixate on things that are minor. Basically, I am trying to figure out if I did something wrong with the recent tire change. This vibration happens at every single gear.
So, here's my thought process. If it was tire balance or improper mounting, this would happen at certain speeds regardless of RPM (example; going 60 mph with vibration in sixth, down shift to fifth and the vibration should still be present). Wouldn't that be the case if it was directly related to the tires? If it was the drive chain, shouldn't it be even more specific (example; vibration in every gear but at different RPM depending on speed and how much throttle is being applied)? In my case, this vibration is at 4k rpm in every gear. I have adjusted the chain three times to rule that out and added more counteract beads to the tires. So the question is......would you say this vibration is in the motor some where and has probably been there all along and I am just being crazy? I am totally fine with the amount of vibration. I just want to be sure it wasn't caused by me! Thanks guys, and sorry I am so long winded right now. Third cup of coffee, and I am chasing it with a Monster!