black john
TY 4 Stroke Guru
just striped down my old moter to change to wissco 13 to 1 pstons . i checked the piston & ring clerance and end gap piston clerance was .003-.0035. end gap was at .025-.030. max end gap in the manual is listed as .022. at just under 4400 miles and it had just started to drink a oil. and comp was below spec as well at 175. low end of the spec is at 179. the next one will realy be interesting as it,s a high mile sled almost 3X the miles at last check a year ago it was at 155 lb,s comp . and that 03 had quite a appetite for oil. it should be interesting to see what the gaps are on that one.
Indy
TY 4 Stroke God
cant wait to see