| Author | Message | ||
     Robertb1958 |
After riding lets say about a half mile, a sound like wind howling/whistling starts on my S1. I think it is coming from the rear wheel area (helmet laws in NC cut back on accurate hearing, and my ears are burned out anyway). The bike has 18K miles and PM wheels. I think it is the rear wheel bearing? Belt looks OK. No grinding noises (yet). Anybody else heard this or have any other ideas? I have more modern bikes,but still like the S1 for around town! | ||
| S1owner |
Turbo! | ||
| General_ulysses |
Why don't you: 1. Try to identify if it's related to the throttle setting (engine speed) or wheel speed. From what you say sounds like it's probably wheel speed related (i.e. independent of engine power/rpm). 2. Try to determine if it gets quieter with the rear brake on or off. 3. Visually inspect your bike top to bottom. Looks for loose exhaust brackets, loose/missing bolts/nuts and/or broken or missing parts. Also, considering what you think it might be, visually inspect the bearings and see if you see any grease or rust or blown seals etc around the bearings. 4. Try to get the rear wheel off the ground and check the free play by shaking the wheel back and forth. Also rotate the wheel by hand and see if you can hear or see anything. If possible to do so safely, start the engine, put it in gear and spin the rear wheel through a few gears and see what it sounds like. See if you can tell more precisely where the noise is coming from. It's a start... | ||
| Natexlh1000 |
I think that sounds like a wheel bearing. I recall that the PM wheels had some sort of bearing issues. Take that wheel off and give it a close look before you ride it more. I think the issue was that the outer race would become loose in the bore. People were shimming them and installing them with green locktite. | ||
| Hybridmomentspass |
I see youre in GSO, Im 20 minutes from you hit me up sometime | ||
| Hootowl |
All wheels have bearing issues if the belts are run too tight. If your bike has had its belt tension adjusted by a dealer, it's too tight. | ||
| Akbuell |
And don't forget to check the trans output shaft bearing. Might do to remove the rear wheel to check the bearings, and while it is out, carefully turn the engine pulley by hand and confirm no notchiness or gritty feel. Could be an issue if the belt has been too tight. Hope this helps, Dave | ||
| Harleyelf |
Pull the clutch in and idle the engine while it is making the noise. If it doesn't go away, it's the wheel bearing or the output shaft bearing of the transmission. | ||
| Robertb1958 |
Thanks all for the input, It is related to bike road speed, not engine. It seems to have gotten better lately somehow. When I get a chance, I will see if my stands can adapt to the bike, put it up, and see if I can find out something. |
