03-22-2016, 02:16 PM | #16 | |
Join Date: Oct 2015
Location: FL, GA, NC
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Quote:
jb
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2016 Honda CB500F......2017 Triumph Street Twin 2014 XT 250........ |
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03-22-2016, 02:19 PM | #17 |
Join Date: Oct 2015
Posts: 321
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Perhaps a loose or broken cam chain tensioner? And the sound is the chain randomly slapping around? That's an easy check/fix
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03-22-2016, 02:22 PM | #18 | |
Join Date: Oct 2015
Location: FL, GA, NC
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Quote:
I can't find anything in the service manual that even mentions the cam chain tensioner. Do you know if it is an automatically adjusted tensioner, or if it has to be adjusted manually? Awaiting a response from CSC as to what to do next. jb
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2016 Honda CB500F......2017 Triumph Street Twin 2014 XT 250........ |
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03-22-2016, 02:25 PM | #19 |
Join Date: Jun 2015
Location: Las Vegas
Posts: 158
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Oh great, is this the RX3's Doohickey? I'm all too familiar with that on 2 different KLRs.
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03-22-2016, 02:26 PM | #20 |
Join Date: Oct 2015
Posts: 321
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It's "automatic" (spring + ratchet), is that right there where you're sound probing
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03-22-2016, 02:32 PM | #22 |
Join Date: Oct 2015
Location: Texas
Posts: 146
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My Orange RX3 has a noisy top end also. My wifes White RX3 sounds like a sewing machine it makes me wonder if my riding style is contributing to the noisy valve train or its just the nature of the engines (I wring this baby out merging onto Texas freeways). Chain noise and clutch basket sound noisy on my Orange RX3 also. The White RX3 purrs like a kitten and they both have the same mileage give or take a few miles. I hope you get it figured out JB spring is here!
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03-22-2016, 02:56 PM | #23 | ||
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Quote:
http://www.chinariders.net/showthread.php?t=15545 First remove the center bolt to release the spring pressure. Remove the spring and O-ring. Remove the two screws at the base of the ACCT. Caution: After removing the ACCT, return the plunger to its initial position by pressing on the locking cam, and pushing the plunger to the base of the tensioner.
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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03-22-2016, 02:58 PM | #24 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Here are instructions for installing the ACCT, from the following thread.
http://www.chinariders.net/showthread.php?t=15546 Replace the Automatic Cam Chain Tensioner (ACCT) Install the ACCT with the two screws at the base. Install the spring and O-ring. Install the center bolt to set the spring pressure.
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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03-22-2016, 03:00 PM | #25 |
Join Date: Oct 2015
Location: Texas
Posts: 146
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That is the area where the chain tensioner is and in the video it did sound random like chain slapping it would be worth a shot at checking it out.
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03-22-2016, 03:05 PM | #26 |
Join Date: Oct 2015
Location: FL, GA, NC
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Thanks for the photo, Juanro, Spud, and Tiger.
I removed the tensioner, and the spring, and the piston click mechanism seem to be working properly. When I reinstalled the spring, I could hear (with the stethoscope) the piston clicking into place. jb
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03-22-2016, 03:08 PM | #27 |
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Location: Idaho
Posts: 25,054
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Did you retract the plunger, and lock it with the cam lock before you re-installed the ACCT?
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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03-22-2016, 03:10 PM | #28 | |
Join Date: Jul 2015
Location: Milpitas, CA. USA
Posts: 775
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Are you flopping around?
Quote:
Alternatively, you may be able to removed the tensioner assembly (carefully avoiding damaging the gasket) and check that it's parts are working as they should. Note: just before posting this I see Spud has also chimed in. Edit: I see you got here also, JB. |
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03-22-2016, 03:16 PM | #29 | ||
Join Date: Oct 2015
Location: FL, GA, NC
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Quote:
Quote:
Followed the directions. However, I hope I didn't sign up for an engine disassembly when I purchased the RX3. jb
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03-23-2016, 08:12 AM | #30 |
Join Date: Dec 2015
Posts: 200
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Sent the video to friend that ran the service department at the local Yamaha/Suzuki/Can Am dealer and he said it sounds like a wrist pin or crank bearing issue.
Edit. listened again and now thinks rod bearing.
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