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YZ325.CEO.CYLINDER.KIT yz250  1999 2000 2001 2002 2003 2004 yz250 top end rebuild kit yz250 cylinder yz 250 big bore kit yz250 big bore kit 2 stroke  big bore kit yz250 yz250 big bore kits yamaha yz 250 cylinder yz 250 engine 	
yz 250 piston YZ.250.PIPE
YZ325.CEO.CYLINDER.KIT
Our Price: $930.00
YZ250 325 BIG BORE KIT
List Price: $1,099.00
Our Price: $1,099.00
Sale Price: $720.00
You save $379.00!
YZ.250.PIPE
Our Price: $185.00
NEW PISTON AND HEAD DESIGN
SHOP CELL 805-440-1063
COMES WITH THE FOLLOWING
CYLINDER POWER VALVE
PISTON CEO
HEAD CEO RACE FUEL NEEDED
GASKETS NUTS BOLTS
ONLY ONE PORT AVAILABLE DOES ALL
Capturing Efficiency Optimized = CEO

The C.E.O is a revolutionary design to the modern 2stroke motor. The design has been worked on, developed and redesigned many times since the 80’s when ESR first tested it.
Don’t understand it? Well here is a quick laymen’s description of what’s going on.
On a 2 stroke during the up stroke fresh fuel/air is pushed out the exhaust. It’s the expansion chambers job to push that fresh charge back into the combustion chamber. This is where matching the pipe to the porting is so important. With the C.E.O. dished piston top, instead of pushing that fresh charge out the exhaust it forces it into the center of the piston. This is optimizing the efficiency of your fuel/air charge when it’s “off the pipe” allowing the motor to still run optimal even when your not in the Goldilocks zone of the pipe and porting matching perfect. This drastically broadens the powerband, and truly turns your bigbore kit into the “4 stroke killer”
PATENT IS APPLIED FOR # 13523.02 SIERRA IP LAW PC
EDDIE SANDERS RACING YZ250 BIG BORE 325 PLEASE READ FITS 1999 TO 2018 AND THE X
SHOP CELL 805-440-1063
THIS PIPE COMES WITH STANDARD ADAPTER AND TORQUE ADAPTER TO WORK GREAT FOR ALL RIDING CONDITIONS
EDDIE SANDERS RACING PIPE FOR YZ325,325,345 WORKS GREAT ON 250 AND BIG BORE CYLINDERS

PIPE COMES WITH TWO SPACER ONE FOR TOP END,BOTTOM END
MOST AFTER MARKET PIPES WERE DESIGN 15 YEARS AGO THINK ABOUT IT OLD SCHOOL TIME TO STEP IT UP WITH A EDDIE SANDERS TRUE TUNED PIPE
I ONLY WORK ON 250 BASED ENGINES AND PIPES FOR ALL 40 YEARS OF RACING AND BUILDING PIPES AND ENGINES THIS IS GOOD AS IT GETS
WISECO PISTON Y YAMAHA.REED 325SLEEVE
WISECO PISTON Y
List Price: $189.00
Our Price: $169.00
Sale Price: $169.00
You save $20.00!
YAMAHA.REED
Our Price: $146.00
325SLEEVE
Our Price: $139.00
REPLACEMENT PISTON KITS REED BLOCK FOR YZ250 /325 ENGINES
FITS 1999 TO 2019 YEARS
INCREASES TOP END POWER
YZ325 SLEEVE FOR ESR325 KIT
YZ325.HEAD YAMAHA.MAG.COVER DOME325-330 PUMP FUEL 93 OCTANE
YZ325.HEAD
Our Price: $99.00
YAMAHA.MAG.COVER
Our Price: $76.00
HEAD ONLY NO DOME FITS ESR CYLINDER BILLET MAG.COVER LIGHTWEIGHT
FITS 1999 TO 2019 YZ250 .
330 PUMP FUEL DOME 93 OCTANE
DOME 325-330 RACE FUEL HIGH OCTANE YAMAHA CYLINDER O RINGS 345 YAMAHA CYLINDER O RINGS 325
YAMAHA CYLINDER O RINGS 345
List Price: $15.00
Our Price: $15.00
Sale Price: $12.00
You save $3.00!
YAMAHA CYLINDER O RINGS 325
List Price: $15.00
Our Price: $15.00
Sale Price: $12.00
You save $3.00!
330 RACE FUEL DOME HIGH OCTANE Replacement cylinder o rings comes with inter and outer  fits 345 kit Replacement cylinder o rings comes with inter and outer  fits 325 kit