chunk of seat foam gone

[BlownBlaster]

Hello can anyone give me a good idea for filling a whole in my seat foam?....new blaster...had some ducktape on seat...so i ordered new seat cover...but after removing the old cover there is a chunk of foam the size of baseball missing....if i dont fix it right it will show through under new cover

 

[Triple_B]

You can replace it and make it look and feel nice for around $45 here: Replacement Seat Foam - <title>Excel Custom Forming Aftermarket Parts for Motorcycles & ATVs</title>
Scroll down to the bottom, you'll see the last one is a blaster seat foam.

Or you could get some foam that matches your seat foam from an arts/crafts store and shape it yourself. Then just glue it in with some gorrilla glue or something.
OR
You can just get a used seat off of ebay: yamaha blaster seat | eBay

Good luck!