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| techtalk:evo:trouble02 [2019/08/05 19:13] – [Common Failures - Be Aware] ixl2relax | techtalk:evo:trouble02 [2024/12/01 19:15] (current) – ixl2relax | ||
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| ====== EVO: Specific Troubleshooting ====== | ====== EVO: Specific Troubleshooting ====== | ||
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| ====== Common Failures - Be Aware ====== | ====== Common Failures - Be Aware ====== | ||
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| Over the course of many years, the following problems have been shown as ' | Over the course of many years, the following problems have been shown as ' | ||
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| + | **Noises** \\ | ||
| + | A common occurrence with Sportsters is all the noise they make. Especially for new owners, it's difficult to nail down if the noises are a sign of problems or if they are just normal. A list of noises that you may hear has been compiled to help with diagnosis or some just to ease your mind. \\ | ||
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| **Clutch Spring Plate Failure**\\ | **Clutch Spring Plate Failure**\\ | ||
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| + | **The Dreaded Clutch Basket Wobble (L84-90 models)**. \\ | ||
| + | This is a known issue beginning either from a worn out basket or trap door bearing or possibly a worn inner basket spline or maybe a combination of them: \\ | ||
| + | The late 84-90 sportster has the stator mounted behind the clutch shell, the problem is the stator needs a tight 0.060 clearance to operate right. \\ | ||
| + | A clutch shell wobbles even when the bearing in the trap door is good, but once it gets worn, it's enough for the magnets to start contacting the stator. Then it's catastrophic for the charging system. \\ | ||
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| + | **04-05 Oil Cap popping up**. \\ | ||
| + | If you've noticed your oil cap mysteriously popping up, it could be a broken internal sleeve. One of the first symptoms is that the cap will not stay flush, but will protrude maybe an eighth of an inch above the tank surface. Eventually it will not click down in place at all. There is a fix for this instead of buying a new one. \\ | ||
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| **Loose Battery Cables**\\ | **Loose Battery Cables**\\ | ||
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| + | **Starter Clicks**\\ | ||
| + | Usually, this has one of four causes, in order of frequency: Battery Cables Loose, Battery, Starter Relay or Solenoid Contacts.\\ | ||
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| **1998-2003 Nosecone Ignition Failure**\\ | **1998-2003 Nosecone Ignition Failure**\\ | ||
| - | The 1998-2003 Non-Sport model used an integrated ICM on the Sensor Plate. These OEM modules had a high failure rate. The MoCo stopped providing replacement units as soon as they were allowed. The only choice for replacement is aftermarket versions (such as the Ultima | + | The 1998-2003 Non-Sport model used an integrated ICM on the Sensor Plate which was still located in the ' |
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| **2007-2009 Electrical Fuse Box**\\ | **2007-2009 Electrical Fuse Box**\\ | ||
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| + | **Clutch Slipping - Upgrade Pressure Plate**\\ | ||
| + | Once you have upgraded to 90hp or more, it is very likely that you are going to notice clutch slippage under extreme acceleration. It is important to upgrade your clutch friction & steel plates & include a higher rated pressure plate. You also want to have an upgraded Release Bearing.\\ | ||
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| + | **Clutch Release Bearing Upgrade** | ||
| + | You might consider replacing the stock bearing, P/N 8885, which is a standard ball type bearing (equiv. to 6200). Using an angular contact bearing, which provides additional support in the axial direction, is a better alternative for this application. The upgraded replacement would be 7200B (not supplied by HD) and is an angular contact bearing.\\ | ||
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| **Fuel Tank/Pump Issues** | **Fuel Tank/Pump Issues** | ||
| - | **Oil & Hoses Issues** | + | **Oil & Hoses Issues** |
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