Differences

This shows you the differences between two versions of the page.

--- techtalk:ref:genmsr05 [2022/11/21 02:49]
hippysmack [Connecting Rods / Crankshaft / Flywheels]
+++ techtalk:ref:genmsr05 [2023/08/01 17:28]
hippysmack [Primary]
@@ Line 527: / Line 527: @@
 **Condition**: Rod bearing failure. \\
-**Verification**: Check for up and down movement of each rod. Removing the pistons and grabbing each rod bypasses the error factor of piston side play. \\
+**Verification**: Check for up and down movement of each rod at several points of it's rotation. \\
+Removing the pistons and grabbing each rod bypasses the error factor of piston side play. \\
 Also, you can hold the rod just under the piston with one hand like choking a chicken and pull up on it. ((wedge of the XLFORUM http://xlforum.net/forums/showthread.php?p=5916266#post5916266)) \\
 Then use your other hand in a fist to hit the top of piston like a hammer action. A bad crank will make a very loud knocking sound as you do it. \\
 Henceforth known as the "Wedge Test". \\
 In the (L) video below, you can hear the rapping at 1:1 engine speed. \\
@@ Line 671: / Line 674: @@
 The primary is a big hollow chamber and it will amplify any noise coming from anywhere in the engine. ((KevinJ of the XLFORUM http://xlforum.net/forums/showthread.php?p=3399889&highlight=stethoscope#post3399889)) \\
-Primary Chain: \\
+  * **Symptom: Whining or Chirping Noise** \\ A primary chain that's adjusted too tight can make a whining or chirping noise. Reportedly, the chirping noise can come on after some full throttle and hard shifting when the primary chain is too tight / bike hot. ((Gcram399 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1529681&highlight=stethoscope&page=2)) \\ **Condition: Chain out of adjustment** \\ One method of adjusting a tight primary chain: With the bike hot and running in neutral, loosen the nut, turn the adjuster in until it starts to whine, then back it off 1/4 turn. ((wedge of the XLFORUM http://xlforum.net/forums/showthread.php?t=1529681&highlight=stethoscope)) Then ride it and make sure it's not whining any longer. \\
-**Symptoms**: \\
+  * **Symptom: Rattling noise**. \\ A rattle that you cannot adjust out is a sign of a stretched chain. ((bitpusher of the XLFORUM http://xlforum.net/forums/showthread.php?t=1178157&highlight=stethoscope&page=2)). If your primary chain is too tight, that can cause a vibration that is felt in the pegs. ((semjpm of the XLFORUM http://xlforum.net/forums/showthread.php?t=27701&page=27)) \\ **Condition: Stretched Chain**
-A primary chain that's adjusted too tight can make a whining or chirping noise. \\
+  * **Symptom: Rattling or Squeaking Noise**. \\ The sprocket nut can work loose and the noise is from the rotor eating itself up on the crank splines. If it's bad enough, it can end up breaking the end of the crankshaft off. ((JstColli of the XLFORUM  http://xlforum.net/forums/showthread.php?p=3399889&highlight=stethoscope#post3399889)) \\ **Condition: Loose sprocket nut**.  \\
-Reportedly, the chirping noise can come on after some full throttle and hard shifting when the primary chain is too tight / bike hot. ((Gcram399 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1529681&highlight=stethoscope&page=2)) \\
+  * **Symptom: Squeaking Noise**. \\ A squeaking noise seemingly from the area of the generator. ((jmmarks70 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1786179&highlight=motor+mount+noise&page=2)) \\ **Condition: Loose / damaged chain adjuster**.
-Rattling noise. \\
-A rattle that you cannot adjust out is a sign of a stretched chain. ((bitpusher of the XLFORUM http://xlforum.net/forums/showthread.php?t=1178157&highlight=stethoscope&page=2)) \\
-If your primary chain is too tight, that can cause a vibration that is felt in the pegs. ((semjpm of the XLFORUM http://xlforum.net/forums/showthread.php?t=27701&page=27)) \\
-**Condition**: \\
+|  75 primary adjuster damage. ((photos by jmmarks70 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1786179&highlight=motor+mount+noise))  |||
-Chain out of adjustment. \\
+|{{:techtalk:ref:genmsr:75_primary_adjuster_damage_1_by_jmmarks70.jpg?direct&300|}}|{{:techtalk:ref:genmsr:75_primary_adjuster_damage_2_by_jmmarks70.jpg?direct&300|}}|{{:techtalk:ref:genmsr:75_primary_adjuster_damage_3_by_jmmarks70.jpg?direct&230|}}|
-One method of adjusting a tight primary chain: ((wedge of the XLFORUM http://xlforum.net/forums/showthread.php?t=1529681&highlight=stethoscope)) \\
+\\
-With the bike hot and running in neutral, loosen the nut, turn the adjuster in until it starts to whine, then back it off 1/4 turn. \\
-Then ride it and make sure it's not whining any longer. \\
-Sprocket Nut: \\
+  * **Symptom: Rattling Noise**. \\ Conv90 submitted video of noise from the primary side: \\
+{{:video:buell_noise_video_by_conv90.mp4|}}
-**Symptom**: \\
+  * **Symptom: Rattling Noise**. \\ The tensioner shoe can be loose and rock side to side enough to sound like a lifter problem. It will rock fore and aft into the primary cover. \\ From the cam side of the bike, it'll sound like it's a lifter bouncing around. It's a slow intermittent hollow banging noise. It may only make noise at idle when the chain is least tight. \\
-Rattling noise. \\
+    * **Condition: Loose Primary Chain Adjuster Shoe**. \\ Below is a short video by Conv90 of the XLFORUM showing the hollow noise created.
-**Condition**: \\
+{{:video:primary_chain_adjuster_shoe_noise_by_conv90.mp4|}}
-Loose sprocket nut. ((JstColli of the XLFORUM  http://xlforum.net/forums/showthread.php?p=3399889&highlight=stethoscope#post3399889)) \\
-The sprocket nut can work loose and the noise is from the rotor eating itself up on the crank splines. \\
+\\
-If it's bad enough, it can end up breaking the end of the crankshaft off. \\
-**Symptom**: \\
+  * **Symptom: An extra and constant noise inside of the primary case**. \\ An extra and constant noise inside of the primary case (even / after adjustment of the primary chain adjuster). ((Spor-T-1 of the XLFORUM http://xlforum.net/forums/showthread.php?t=29865)) \\ **Condition: Loose compensator nut / flywheel sprocket shaft nut**. \\ Once the sprocket on that shaft gets loose enough, it will chew the end of your fly wheel. ((dodgenbullets of the XLFORUM http://xlforum.net/forums/showthread.php?t=29865)) If this is the case your motor must come out and the cases split to fix it. \\
-Squeaking noise seemingly from the area of the generator. ((jmmarks70 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1786179&highlight=motor+mount+noise&page=2)) \\
-**Condition**: \\
-Loose / damaged chain adjuster. \\
-|  75 primary adjuster damage. ((photos by jmmarks70 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1786179&highlight=motor+mount+noise))  |||
-|{{:techtalk:ref:genmsr:75_primary_adjuster_damage_1_by_jmmarks70.jpg?direct&300|}}|{{:techtalk:ref:genmsr:75_primary_adjuster_damage_2_by_jmmarks70.jpg?direct&300|}}|{{:techtalk:ref:genmsr:75_primary_adjuster_damage_3_by_jmmarks70.jpg?direct&230|}}|
-**Symptom**: \\
-An extra and  constant noise inside of the primary case (even / after adjustment of the primary chain adjuster). ((Spor-T-1 of the XLFORUM http://xlforum.net/forums/showthread.php?t=29865)) \\
-**Condition**: \\
-Loose compensator nut / flywheel sprocket shaft nut. \\
-Once the sprocket on that shaft gets loose enough, it will chew the end of your fly wheel. ((dodgenbullets of the XLFORUM http://xlforum.net/forums/showthread.php?t=29865)) \\
-If this is the case your motor must come out and the cases split to fix it. \\
 ====== Transmission / Clutch ======

Trace:

Differences

Navigation

Search

Toolbox