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--- techtalk:evo:engmech07 [2022/05/12 18:25]
hippysmack [Late 1984-1990 Sportster Breather Valve]
+++ techtalk:evo:engmech07 [2022/05/12 18:26]
hippysmack [Late 1984-1990 Sportster Breather Valve]
@@ Line 62: / Line 62: @@
 |{{:techtalk:evo:oil:89_cam_cover_1_by_bryan350.jpg?direct&250|}}|{{:techtalk:evo:oil:89_cam_cover_2_by_bryan350.jpg?direct&250|}}|{{:techtalk:evo:oil:89_cam_cover_3_by_bryan350.jpg?direct&250|}}|
 |  89 cam cover with breather baffle tube attached (it should be tight but still pull out) ((photos by Bryan350 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1712011))  |||
-**Testing the L84-90 umbrella valve**: \\
-A working valve should help reduce oil mist. ((Four Speed of the XLFORUM http://xlforum.net/forums/showthread.php?p=5745528#post5745528)) \\
-Since it's a one-way valve, air goes out but doesn't come back in (past the umbrella itself). \\
-To make sure the umbrella valve is still working; \\
-Before you position the hose, use a bit of clean pipe and blow gently through the breather. \\
-It should close the valve and stop air flow (if you use a quick hard breath). \\
-However, blowing slow and gently will allow a small amount of breath to go into the engine through the tiny oil drainback hole. \\
-You may have to find an aftermarket replacement if the valve is shot as OEM replacements are hard to come by now. \\
-The 5 speed ones do not fit. \\
 ====== 1991-2003 Sportster Breather Valve ======

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