Posted by: 52deluxebug - 18 July 2012 10:20:25
Can anyone help with some sizes please: Late 1952 25hp engine 1) The Skirt length of the cylinder / barrel - what should it be? 2) Piston size - assuming NOS pistons / NOS cylinders / all standard sizes Thanks in advance

Posted by: virtanen - 04 August 2012 18:04:53
1. Originally long skirt, but shorter version works too. 2. STD size 75 mm, 1.st oversize 75.5 and 2nd oversize 76 mm