Is a high compression piston worth it for my 2009 yz450f?

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  • vic2340

Posted May 03, 2013 - 07:07 PM


[color=#282828][font=helvetica, arial, sans-serif][background=rgb(252, 252, 252)]Hey everybody, I have a 2009 yz450f and the bike has quite a few hours on it so I think its time to do the top end before something bad happens. I was looking up pistons and I realized that a 13:1 compression ratio piston for my bike only costs about 30 bucks more. Stock compression ratio is 12.5:1, so seems worth it to me, however I have a few concerns. Will adding this piston create more strain on my engine? Will I have to run a higher octane oxygenated race fuel? Will this create any issues with my jetting if race fuel doesnt have to be used? And finally will I need to service this top end more often making it more expensive than that 30 bucks more in the long run?[/background][/font][/color]

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