2000 Polaris Pro 785 Service Manual, Page 366Get this manual
ENGINECOOLING Cylinder Honing
The Ni-Ca-Sil cylinders used on the SLX Pr0785 can be honed to remove light deposits or scuffing if the proper stone is used "Soft" stones like those used to hone alum inum cylinders are recommended Follow normal honing procedures and use honing oil
EXAMPLE OF CROSS HATCH PATTERN
Honing Procedure
1 Wash cylinder with solventClamp cylinder in soft jawed vise by screwing bolts into exhaust bolt holes2 Place hone in cylinder and tighten stone adjusting knob until stone contacts the cylinder walls (DO NOT OVERTIGHTEN)Using 12(13 mm) drill motor rotating at speed of 300-500 RPM, run the hone in and out of the cylinder rapidly Remember to keep the hone drive shaft centered to prevent edge loading and always bring the stone approximately 12" (1 .3 cm) beyond the bore at the end of each stroke Release the hone at regular intervals to inspect the bore surface