"Cylinder should be inspected and re-newed if chrome has cracked, flaked orworn away and exposed soft base metalunderneath. Pistons and rings are avail-able in standard sizes only. Piston ringend gap should be 0.055-0.091 inch(1.40-2.31 mm) for Models PM555,PM700, PM800 and PM850."
I measured the rings gap and it is 1.4 mm.the manual also says it is chrome cylinder.i read on a forum for 2stroke bikes that there is a shop that is coating cylinders for motorcycles.maybe he could fix the cylinder.
I measured the rings gap and it is 1.4 mm.the manual also says it is chrome cylinder.i read on a forum for 2stroke bikes that there is a shop that is coating cylinders for motorcycles.maybe he could fix the cylinder.