timing chain/cam chain replacement.
#11
The OEM automatic cam chain tensioner is a known problem in Honda motorcycle engines. Even the one in my dirtbike failed. When I bought my 06 600RR 4 years ago it had a really nasty rattle during deceleration, just like you described. I put in a manual tensioner and have never even had to adjust it. I'd look there first. The 600RR is pretty easy to replace. Only the right side fairing and tool compartment has to be removed to access it. When my buddy did his 2001 F4i, he had to remove the fuel tank to get to it.
Last edited by shawn809; 06-13-2019 at 03:22 PM.
#14
#15
Love that color scheme, btw!
Last edited by Doc Samson; 06-13-2019 at 05:47 PM.
#16
I have done that. New OEM is already installed. Procedure was followed as you described. No luck, noise still present, just a bit less.
Next step is to try manual one.
I have just ordered new PSR tensioner.
If that does not work out, i got more work to do on engine. I'll keep you updated.
Thank you all so far on great support.
Next step is to try manual one.
I have just ordered new PSR tensioner.
If that does not work out, i got more work to do on engine. I'll keep you updated.
Thank you all so far on great support.
#17
The PSR is what I have in mine. It's been great. To adjust it, leave the adjusting bolt a little loose and start your bike. At idle you can hear the chain slapping a little, slowly turn in the adjuster by hand until you hear the noise stop. Then tighten the lock nut and you're most likely set. It's VERY important that once you hear the chain rattle stop you don't continue to turn in the adjuster, even though it's still easy to do by hand. Over tightening will stress your cam and crank bearings, as well as the chain. Once you have the lock nut tight, give it a few good revs. You shouldn't hear any more rattling as the RPMs come back down. If there's a little, you can try a quarter turn to take up any harmonic noise in the chain. At that point, you should be able to tell if there's something else making noise.
Good luck! Curious how it turns out.
Good luck! Curious how it turns out.
#18
I have done that. New OEM is already installed. Procedure was followed as you described. No luck, noise still present, just a bit less.
Next step is to try manual one.
I have just ordered new PSR tensioner.
If that does not work out, i got more work to do on engine. I'll keep you updated.
Thank you all so far on great support.
Next step is to try manual one.
I have just ordered new PSR tensioner.
If that does not work out, i got more work to do on engine. I'll keep you updated.
Thank you all so far on great support.
#19
You would sure thinks so. However, sometimes even new parts can be faulty. In my 8 years as a fleet mechanic I have definitely learned that! That being said, i put an OEM tensioner in my 03 CRF450R after the first one went bad, and within 2 months it was rattling again. That, plus the overwhelming favor online, is why I went to manual. Been zero issues for several years now, (9,000 miles on the CBR since) so I'm definitely a believer.
#20