Welcome to PRD web! Here has the product which you want.

PRODUCTS
 Karting Engine
  RK125W07 FIREBALL
  RK125W HOBBY
    RK80RV COMET
    RK100RV LIGHTNING
    RKM100C
    RK125A METEOR
 Go Kart Parts
  Engine Parts
    Accessories
    Tools
 Apparel
 Engine Maintenance
 Newsletter
   Home/Products/Karting Engine/RK125W07
 
  MODEL   RK125W07 TAG
  TYPE   2 STROKE WATER COOLED SINGLE CYLINDER REED VALVE INDUCTION
  CAPACITY   124cc
  BORE   53.70 ( FIRST PISTON 53.60)
  STROKE   54mm
  H.P./RPM   28H.P./15,800RPM
     22H.P/ 11.000 R.P.M. -Marine Version
  CARBURETOR   TILLOTSEN HL-360A
  IGNITION   C.D.I (OPPAMA)
  IGNITION TIMING   2.20mm BTDC [STANDARD]
  SPARK PLUG   NIPPON DENSO W27ESU [RUN IN ONLY]
  W29ESU [RECOMMENDED RACING]
  SPARK PLUG GAP   0.60mm [0.024"]
  FUEL OIL RATIO   16:1 PREMIUM GRADE UNLEADED PETROL
  PISTON TYPE   COATED PISTON
  PISTON CLEARANCE   0.10mm[STANDARD]
  RING TYPE   DYKES STYLE (L RING)
  RING GAP   0.25mm [0.010"]MIN.
  CYLINDER HEAD VOLUME   10.2cc
     12.1 cc - Marine Version
  COMPRESSION   13 : 1
     10 : 1 - Marine Version
  CRANKSHAFT   2 PIECE,FORGED & INDUCTION HARDENED
  CONROD   100mm STEEL CNC MACHINED
 
  6F , No. 16 , Nanking East Road , Section 5 , Taipei , Taiwan TEL: 886 ( 2 ) 2762-1117 FAX: 886 ( 2 ) 2763-1163 E-Mail : service@prd.com.tw
 Copyright 2009 PRD Pro Racing Design CO.,LTD   All Rights Reserved.