Jumpa New Member Aug 12, 2011 607 2 0 Cape Cod Mar 14, 2014 #21 MotorBicycleRacing said: His motor does not have a longer connecting rod. The 40 mm stroke is 2 mm more than a 38 mm stroke motor because the lower connecting rod pin is drilled 1mm closer to the outside. His motor needs a PK style piston with the lower wrist pin hole. A Skyhawk / GT 5 piston has the higher hole. Who knows what a Flying Horse motor really is as some vendors call any and all of their motors by that brand name. Click to expand... This might help ya Attachments thanks uyou.JPG 209.3 KB Views: 126
MotorBicycleRacing said: His motor does not have a longer connecting rod. The 40 mm stroke is 2 mm more than a 38 mm stroke motor because the lower connecting rod pin is drilled 1mm closer to the outside. His motor needs a PK style piston with the lower wrist pin hole. A Skyhawk / GT 5 piston has the higher hole. Who knows what a Flying Horse motor really is as some vendors call any and all of their motors by that brand name. Click to expand... This might help ya
allen standley Well-Known Member Oct 22, 2011 1,126 238 63 Bangor, Maine Mar 14, 2014 #22 Or this. Shows wrist pin in place of both. The context surrounding this photo can be seen in full in my pic album. Last edited: May 7, 2014
Or this. Shows wrist pin in place of both. The context surrounding this photo can be seen in full in my pic album.
