hi guys!

I have owned a nine-month-old Yamaha midnight star 1300. Recently, I noticed that when I change down the gear the bike hunts. I thought it was in the wrong gear, but when I try to put the bike into neutral, it behaved the same. I read some blog to find some information about this but I couldn't find what I need. Do you guys know what this may be? 

I'm planning to bring it back to the dealer, but before doing that I need to know what the problem is. 

And by the way, I'm looking for a new helmet as the recent one is pretty old. Any recommendation?

Thanks a lot!

Edited August 18, 20204 yr by clintskiles

Sounds like an Air leak,,   spray  brake cleaner  round inlet area  wen at idle,  revs will spike  at leaking area ,