Is it the valve clearance?

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Joined
May 19, 2019
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Bike
Yamaha XT 600 Z
Hi all,

Hoping someone can give me some direction on an idle issues:

The bike runs and starts easy enough. However, it was sounding like the engine was getting air in (intake manifolds were cracked) so I replaced the intake manifolds, serviced the carburetor and replaced the air filter. But it's still not right. I've included two links to videos of how the bike sounds.

This was prior to making the above changes https://youtu.be/KZ7xiZ6o8CQ

And this is after doing all the changes (bike is sounding worse if you ask me) https://youtu.be/SV3hAndDnyQ

Any advice will be appreciated!
 
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