- Joined
- Mar 17, 2018
- Messages
- 22
Hi,
Need the collective wisdom of this forum as my foot pegs started buzzing and I can't figure out why. I'm fairly certain this wasn't the case before but not sure when it started. I've become aware of it the last time I rode the bike.
It's a high frequency buzz that increases with the rpm and most noticeable in the foot pegs. It's also felt in the seat and to a lesser degree in the handlebar.
I'm convinced something is touching the sub-frame but can't figure out what.
Following things I've checked:
- Iso clearances. All around in spec.
- All engine and gearbox fasteners. Tightened a couple but no change.
- Head steady mounting. All tight but early 750 type with crack starting at the bend on one side. Only 5mm right now.
=> Hard to believe but could this be the cause?
- Checked all around for anything touching the engine or sub-frame. Can't find anything.
- Carbs synched with both showing equal vacuum
- Primary and secondary chain tension
- Exhaust mountings. Have S-Type exhaust and nothing is touching.
- No unusual noises
- Checked frame for cracks. Can't find anything and have no funny handling.
Bike is fairly smooth until 2500rpm. After that the vibes start in the pegs. No buzz when the clutch is pulled coasting.
Appreciate your input.
Need the collective wisdom of this forum as my foot pegs started buzzing and I can't figure out why. I'm fairly certain this wasn't the case before but not sure when it started. I've become aware of it the last time I rode the bike.
It's a high frequency buzz that increases with the rpm and most noticeable in the foot pegs. It's also felt in the seat and to a lesser degree in the handlebar.
I'm convinced something is touching the sub-frame but can't figure out what.
Following things I've checked:
- Iso clearances. All around in spec.
- All engine and gearbox fasteners. Tightened a couple but no change.
- Head steady mounting. All tight but early 750 type with crack starting at the bend on one side. Only 5mm right now.
=> Hard to believe but could this be the cause?
- Checked all around for anything touching the engine or sub-frame. Can't find anything.
- Carbs synched with both showing equal vacuum
- Primary and secondary chain tension
- Exhaust mountings. Have S-Type exhaust and nothing is touching.
- No unusual noises
- Checked frame for cracks. Can't find anything and have no funny handling.
Bike is fairly smooth until 2500rpm. After that the vibes start in the pegs. No buzz when the clutch is pulled coasting.
Appreciate your input.
Last edited: