Does anyone know what the compression is supposed to be on a stock 2003 yz125?
S shawn4497 Member Apr 19, 2009 9 0 Apr 26, 2009 #1 Does anyone know what the compression is supposed to be on a stock 2003 yz125?
H helio lucas ~SPONSOR~ Jun 20, 2007 1,020 0 Apr 27, 2009 #2 do you mean the psi reading or the compression ratio?