Differences
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| techtalk:ref:engmech07s [2024/09/05 03:49] – [Notes from XLForum Members on the 8-Ball Breather] hippysmack | techtalk:ref:engmech07s [2024/09/05 04:01] (current) – hippysmack | ||
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| ====== XR-750 Breather Valves ====== | ====== XR-750 Breather Valves ====== | ||
| - | ====== XR-750 8-Ball Breather Valve ====== | + | ====== |
| The earliest alloy XR's put a vent to the back of the crankcase with a big one-way valve on it. ((barefoot of the XLFORUM https:// | The earliest alloy XR's put a vent to the back of the crankcase with a big one-way valve on it. ((barefoot of the XLFORUM https:// | ||
| The idea was, when the pistons go down it pushes the oil into the camcase and scavenge pump. \\ | The idea was, when the pistons go down it pushes the oil into the camcase and scavenge pump. \\ | ||
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| </ | </ | ||
| - | ====== | + | ====== |
| + | This is a 2 window 1/4 speed gear. Breather valve has been undercut and is not equipped with a timing slot. \\ | ||
| + | Breather timing cannot be set on 72-74 XR engines. \\ | ||
| + | Feed Gear Roll Pin (603). \\ | ||
| + | Return Gear Woodruff Key (26340-36). \\ | ||
| + | Breather Shaft Retainer Split Washer ( 26341-37). \\ | ||
| + | {{: | ||
| \\ | \\ | ||
