Hi,

When I first start my Rubicon and rev it a little and let off the gas it has a chirp like sound. What could this be? I have talked to a few Honda riders and they have noticed the same. Any ideas?? It appears to mostly go away when the bike is warmed up to operating temp.

Thanks

 

I have had the same thing on my 03 Rincon...any info would be helpful...

 

My 05 Honda Rubicon was making the same chirping noise recently too. I adjusted my valves and started it back up and the chirp was still there. Eventhough the valves were due, it did not help a lot with the chirp. So i removed the 3 screws on my tailpipe and pulled the tip out and the chirp went away. I have no clue why the stock tip develops the stupid chirping. So i bought an aftermarket powertip for my ATV off EBAY for around $50 and relplaced the old tip with it. The tip comes with a spark arrester screen that makes it legal and increases the air flow making my Honda have a tad bit more power and makes the exaust a little louder and more throaty, but nothing too loud to annoy me. I think it now sounds nice, and anything beats that bird chirp that it was making before.

 

Sounds like something is loose then it expands as it heats up. My parents foreman 500 has large hose clamps around the exaust that holds a heat shield on might check that and all screws or bolds and tighten them.

 

I like DevRUBIrider's answer. There is something in the way these things are made inside that make them chirp when they get older. I have been able to clean some and it goes away, others no luck.
Annoying

----- Gregg -----

 

Just need and new end cap, I have replaced them myself, and the chrip went away