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techtalk:ref:svcproc20 [2019/04/01 15:23]
ixl2relax [Test Each Cylinder for Compression]
techtalk:ref:svcproc20 [2019/10/16 22:16]
ixl2relax [Test Each Cylinder for Compression]
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     * The extra two plugs (on dual plug heads) need to remain in place during this test. ((IXL2Relax of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2005378))     * The extra two plugs (on dual plug heads) need to remain in place during this test. ((IXL2Relax of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2005378))
     * If you can't disconnect power to the coil, ground out all the plug wires.     * If you can't disconnect power to the coil, ground out all the plug wires.
-  - Clean the area around the spark plugs and remove them. ((79-85 HD XL/XR FSM pg 3-10))+  - Clean the area around the spark plugs __BEFORE__ you remove them. ((79-85 HD XL/XR FSM pg 3-10))
     * If you haven'​t disconnected the coil, you can insert the plugs into the plug wires and press the plugs against the cylinder heads for grounding. ((IronMick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=48311))     * If you haven'​t disconnected the coil, you can insert the plugs into the plug wires and press the plugs against the cylinder heads for grounding. ((IronMick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=48311))
   - Connect the compression gauge to the first cylinder.   - Connect the compression gauge to the first cylinder.
-  - Make sure the throttle plate (and choke, if present) ​is fully open before turning over the engine. +  - Make sure the **throttle plate is fully open** ​(and choke, if present) before turning over the engine ​(not the enrichener)
-    * If using a CV carb, hold the slide up. ((aswracing http://​xlforum.net/​forums/​showthread.php?​t=26208&​page=2))+    * If using a CV carb, **hold the slide up.** ((aswracing http://​xlforum.net/​forums/​showthread.php?​t=26208&​page=2))
     * If the cylinder can't freely pull in air, the compression reading will be low.     * If the cylinder can't freely pull in air, the compression reading will be low.
-    * Do NOT pull the enrichener knob - The enrichener is mis-named a choke but it is not a choke plate.+    ​* **Do NOT pull the enrichener knob** - The enrichener is mis-named a choke but it is not a choke plate.
   - Crank the engine continuously through 5-7 compression strokes. (until there is no further increase in reading at the gauge) ((IronMick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=48311))   - Crank the engine continuously through 5-7 compression strokes. (until there is no further increase in reading at the gauge) ((IronMick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=48311))
   - Record the readings at the end of the first and last strokes for this cylinder.   - Record the readings at the end of the first and last strokes for this cylinder.