thinning head gasket

[blew by you]

I'm replacing pistons,rings and top end gasket on my 1999 V-max500SX.What does thinning the head gasket do?Will it do anything for a 500 TWIN?Is it as simple as just using the middle layer of the gasket?Do I use gasket spray?Is there any draw backs to this mod?...leeking gasket,head warping,change jetting?Sorry about all the questions guys,I just want to make sure.THANKS!!

 

[TJ500]

why not just leave the gasket in-tact?...

my 99 500VMax has almost 10,000 Km (6200 miles) and is bone stock...never a problem.... I'm a firm believer of stock = reliability (with respect to performance mods)... read about the melt downs and you can see for yourself... my .02

 

[FuzzButt]

It might wake it up a bit.

I've got nearly 3000 miles on my 600 after running the thinner gasket. Just run good fuel. I try to use premium when possible.

 

[daman]

with today's shitty gas i'd leave it stock,focus on clutching it.

 

[swmichsx]

DO NOT USE SPI PISTONS!!!!!!!!!!!! i have had 2 major failures with them. just put new rings on your yamaha pistons and put it back together.