the "JD" project; clearance for working pushrod/valve rockers

the "JD" project; motor pipe side

workbench view, Christmas-2012

the "JD" project; cam cover

the "JD" project; adding top-end details

the "JD" project; engine head & valve rocker reference

the "JD" project; 'sparky' the magneto

the "JD" project; cam-case & magneto fab

the "JD" project; gearbox mock-up

the "JD" project; mock-up study of primary/drivetrain profile side