How to remap drums

[patrizio1000000]

I just bought Varranger a month ago.
I use the varranger synthesizer with soundfonts.

I use a lot of yamaha styles. I set varranger to GM2 mode.
When I play these styles a lot of them the drum and percussion drum don't sound right.

Is anyone able to help me with how to remap drum sounds?
how do we find which sound is the right one to be replaced with?
for example I have a style that is playing a clap sound that is not the right sound.
When I check that style in drum mixer I can see all the X's for the sounds that are used by that style.
In that style in particular that clap sound is note 39 and that note doesn't have an X but that clap sound is played. If I adjust the volume on that sound the volume is changed when I play the style back, so I know that sound is being played. But like I said it is the wrong sound.

So How do I found the right sound?
and how do I do a remap?

If anyone can give me some inputs I really would appreciate.