Differences
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techtalk:ref:genmsr05 [2019/08/17 04:09] hippysmack [Noise From Vibration] |
techtalk:ref:genmsr05 [2020/05/29 03:59] hippysmack [Brakes] |
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| Gears can be too tight in which case they "whine". Too loose and they make a clicking sound that's really hard to pick up. \\ | Gears can be too tight in which case they "whine". Too loose and they make a clicking sound that's really hard to pick up. \\ | ||
| Larger bearings like mains "rumble" when they are worn, but also if they aren't getting enough oil for whatever reason. \\ | Larger bearings like mains "rumble" when they are worn, but also if they aren't getting enough oil for whatever reason. \\ | ||
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| + | | Mechanic stethoscope. ((photos by asasial of the XLFORUM http://xlforum.net/forums/showthread.php?t=977525&page=3)) | A wooden dowel for a listening tool. ((photos by Hippysmack)) | | ||
| + | |{{:techtalk:ref:tools:stethoscope_1_by_asasial.jpg?direct&300|}}|{{:techtalk:ref:tools:listening_stick_2_by_hippysmack.jpg?direct&300|}}| | ||
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| ===== Critical Listening ===== | ===== Critical Listening ===== | ||
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| Need to keep it from reaching the three points where your body contacts the bike: the seat, handlebars and footpegs. \\ | Need to keep it from reaching the three points where your body contacts the bike: the seat, handlebars and footpegs. \\ | ||
| + | Timing can cause vibrations. \\ | ||
| A lot of the vibration depends on the rpm and gear you are riding in. These motors do not like to be lugged. ((BWP 5p of the XLFORUM http://xlforum.net/forums/showthread.php?t=27701&page=27)) \\ | A lot of the vibration depends on the rpm and gear you are riding in. These motors do not like to be lugged. ((BWP 5p of the XLFORUM http://xlforum.net/forums/showthread.php?t=27701&page=27)) \\ | ||
| Move the timing 1 degree more advanced and test ride. Then move it one degree retarded from original setting and test ride. \\ | Move the timing 1 degree more advanced and test ride. Then move it one degree retarded from original setting and test ride. \\ | ||
| You will find you can tune out some vibrations at certain rpms moving the timing slightly. ((Shu of the XLFORUM http://xlforum.net/forums/showthread.php?t=1662083)) \\ | You will find you can tune out some vibrations at certain rpms moving the timing slightly. ((Shu of the XLFORUM http://xlforum.net/forums/showthread.php?t=1662083)) \\ | ||
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| + | Tires can cause vibrations. \\ | ||
| + | Worn or under-inflated tires can develop cupping in the tread that can create a lot of vibes. ((Hexlobular of the XLFORUM http://xlforum.net/forums/showthread.php?t=1662083&page=2)) \\ | ||
| + | You might not notice them all the time, but they can create a buzzy ride at certain speeds. \\ | ||
| The key is to maintain your bike and keep it properly serviced. \\ | The key is to maintain your bike and keep it properly serviced. \\ | ||
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| **Condition**: \\ | **Condition**: \\ | ||
| + | Brake squeal, common with disc brakes, is caused by the brake pad vibrating against the caliper piston or caliper backing plate. \\ | ||
| + | This condition can be aggravated by disc runout, caliper misalignment, or glazed pads. ((HD Technical Service Bulletin M-712 dated June 16, 1977)) \\ | ||
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| Brake pads not retracting off of and rubbing against the rotor. \\ | Brake pads not retracting off of and rubbing against the rotor. \\ | ||
| Any time you remove and then replace the caliper you're probably not going to get things to line up exactly where they were before. \\ | Any time you remove and then replace the caliper you're probably not going to get things to line up exactly where they were before. \\ | ||
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| Make sure the clip springs are in correctly and lightly greased with anti seize too. \\ | Make sure the clip springs are in correctly and lightly greased with anti seize too. \\ | ||
| (wheel bearing grease will do the job also) \\ | (wheel bearing grease will do the job also) \\ | ||
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| ====== Exhaust ====== | ====== Exhaust ====== | ||
