YZ250 325 BIG BORE KIT
List Price: $899.00
Our Price: $899.00
Sale Price: $749.00
You save $150.00!
Description
In house castings should be available around 9/15/2023. The E2B will be the first in house cylinder casting
Bolt on no bottom end work needed none at all
COMPLETE KIT NEW CYLINDER, PISTON,HEAD,GASKETS AND POWER VALVE
VERY SIMPLE TO BOLT ON LIKE CHANGING PISTON
COMPLETE KIT NEW CYLINDER, PISTON,HEAD,GASKETS AND POWER VALVE
VERY SIMPLE TO BOLT ON LIKE CHANGING PISTON
Features
- PLEASE READ
SHOP CELL 805-440-1063 OR TEXT TO THIS PHONE TO GET A CALL BACK
FITS YAMAHA YZ250 1999 TO 2021 YEARS AND X MODEL
NO CASE WORK NEEDED WILL BOLT ON
STOCK CARBURETOR WORKS GOOD
STOCK PIPE OR AFTERMARKET IS FINE
STOCK REED AND AFTER MARKET IS FINE
THIS KIT COMES WITH THE CYLINDER, HEAD, PISTON, POWER VALVE ,AND GASKETS 75.5MM .HAS GREAT POWER AND SMOOTH POWER .THE POWER IS VERY EASY TO CONTROL THE POWER VALVE OPENS A LITTLE LATER TO MAKE IT EASY TO RIDE ON A SLICK TRACKS . THE POWER VALVE IS ADJUSTABLE IT HAS A BOLT TO ADD SPRING PRESSURE TO MAKE THE POWER VALVE OPEN LATER OR SCREW OUT TO OPEN SOONER THE PISTON SIZE IS 75.5 WITH 4 OVER SIZES AVAILABLE.
Recommended jetting
162/168 main
stock needle
stock low speed
https://www.youtube.com/watch?v=q-1dUVEnKog
http://youtu.be/ijKMclEPj9o
EMAIL FOR QUESTIONS [email protected]
Porting S8 SMOTHER AND MORE POWER THAN STOCK
KIT INCLUDES
NEW CYLINDER (NO EXCHANGE)
NEW HEAD PUMP FUEL OR RACE FUEL
PISTON RINGS PIN CLIPS (NO BEARING USES OEM YAMAHA)
POWER VALVE
BASE REED GASKET
HEAD O RINGS SET
CYLINDER, HEAD NUTS AND WASHERS
INSTALLATION IS JUST LIKE DOING A TOP END REBUILD
HEAD TORQUE 18 LBS
CYLINDER BASE 35 LBS
STANDARD POWER VALVE SETTING 5MM OF THREADS SHOWING
HOSE ON POWER VALVE IS A VENT JUST RUN IT DOWN
RING END GAP IS PRESET