F feetsbig New member Premium Member Nov 26, 2007 161 1 18 64 B.C. Oct 6, 2012 #1 If anyone can help me out, I have sled with the bm 925,lost a piston,going to replace it,but wouldlike to find out the compression ratio.domes have # 81-0130,80-2539,39.7cc.Thanks
If anyone can help me out, I have sled with the bm 925,lost a piston,going to replace it,but wouldlike to find out the compression ratio.domes have # 81-0130,80-2539,39.7cc.Thanks