For sale 61x cylinder ported at 83mm - 735cc
Deck height - stock 119 (measures 118.9mm)
Ex port width 55
Ex port duration 180-181 appx 39mm down assuming oem base gasket
Transfer port duration 119-120 appx 55mm down assuming oem base gasket
Boost port widened and lowered
Transfer inlets raised 10mm
Sleeves ported (window and radius)
This cylinder has been in a box with oil for 20-25 years. Needs cleaning. Note this not an all out race port job. Timing is almost stock 61x and could be with no base gasket and stock head gasket. It’s good all around porting and I recall it came off a practice/rec ski motor. Piston kits are brand new. It’s honed.
Sold as is. $350 shipped with USA.
Deck height - stock 119 (measures 118.9mm)
Ex port width 55
Ex port duration 180-181 appx 39mm down assuming oem base gasket
Transfer port duration 119-120 appx 55mm down assuming oem base gasket
Boost port widened and lowered
Transfer inlets raised 10mm
Sleeves ported (window and radius)
This cylinder has been in a box with oil for 20-25 years. Needs cleaning. Note this not an all out race port job. Timing is almost stock 61x and could be with no base gasket and stock head gasket. It’s good all around porting and I recall it came off a practice/rec ski motor. Piston kits are brand new. It’s honed.
Sold as is. $350 shipped with USA.
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