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  1. Yamaha Dirtbikes
    i am rebuilding a 2001 yz125, and i bought a 1998 cylinder jug. the bore and stroke is the same from 94 to 02, but the compression ratio is off. the ratio for the 98-99 is 8.9:1 with the pv open and 10.9:1 with the pv closed. the 2000-2001 is 8.7:1 with the pv open and 10:1 with the pv closed. i...
  2. Suzuki LT250
    i have several lt250r's(87 and up) but i just got an 85...and so the saga begins . i got it for $350 complete but not runing so not a bad deal . flushed rad , cleaned tank and carb , changed oil. its got big fat blue spark and good compression 165-170lbs but coolant is finding its way into the...
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