I am using a 10-30 full synthetic oil. Would the oil magnify the problem?

 

I wouldn't think that would make a difference, though I run 10W40 in mine.

Have you had a chance to look at the cam chain tensioner?

A mechanic's stethoscope might help you narrow down what's going on.

Also, they do tend to make some mechanical noise when perfectly healthy...

 

I just bought an 05 650 rincon- I noticed a faint rattle / clicking sound that appears to be on the top end throttle side that is present when slow trail riding. But everything runs great, shifts great and is otherwise perfect running. So I just ignore it and ride- As a prior sportsman & outlander owner, I'm very used to arbitrary clutch & drive train chatter / noise. You haven't heard noise until you've snorkeled an outty 800- you'd swear there was a jet following you on the trail, and some old geezer whistling at you when idling!

 

So Hondas do break? lol

 

Hey Guys, After a ton of searching, we found the where the noise was coming from on my new Rincon. It was the heat shield on the exhaust! To verify if that is what is causing the noise on your Rincon, do the following:
With the machine cold and turned off, tap the exhaust with the palm of your hand where the exhaust comes out of the head of the engine. If you hear ANY vibration or rattling, that's the problem. If your machine is in warranty, the problem is covered by Honda. If your machine is not in warranty, take the exhaust apart yourself and find and tighten all the loose parts.

Speaking from experience!

 

I have a Honda 400 and I just recently got a new piston and valve seat. It is still making the ticking/rattling noise and I'm not too sure if it's serious or not. Also does anyone know what four flashes on the 4wd light means?
Thanks.

 

my 09 rincon has 745miles with 110hrs and also makes the tick tick noise when in gear. Been told from a good source at Honda that it’s the cam chain and that it’s normal. I will be changing it because it’s driving me nuts I will up date after it’s installed.