Video here: https://www.youtube.com/watch?v=Ro0IAEh9kTI
Just bought a 2007 GS500F a few weeks ago. Loving everything about it except this stubborn ticking noise!
A little about the noise: It only happens under load (during acceleration) after about 4200rpm. It does not happen in neutral when the engine is at idle or revved past 4200rpm.
There are only a handful of things I dug up that I think it could be:
1. Valve clearances (re-shimmed a few days ago... all clearances now in spec but the noise is still present)
2. Loose/faulty cam chain tensioner (saving this for last because I've heard that a loose cam chain ticking noise will be loudest at idle & generally get quieter with increasing rpm... my ticking noise does the opposite... my noise isn't present during idle, and only becomes apparent @ 4200rpm under load) Also... im not really sure if i can just take off the tensioner without risking the chain jumping. People talk loosely about putting it in top dead center (which doesn't make sense to me... since there are two cylinders... which one should be in TDC?? etc etc) before taking it off... Having a hard time finding clear instructions on this... also I'm not 100% sure how the tensioner works... either way... this will be the next step...
3. Loose starter clutch bolts. I currently have the stator cover off & can only see the starter clutch bolts from the back side... i dont think they are loose, see a photo here: http://imgur.com/seYpnIK .... do you guys thing i should tear down further to make sure the bolts aren't loose? Its kind of a pain to get the clutch assembly off...
Any insight WILL be helpful! Thanks Guys!!
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