He may claim to use (1) 10mm wrench and (1) screwdriver (actually most kits require 2), building 100 bikes but I don't believe that for one second. Its a bunch of BS. Then again, if MacGyver can do all those things, I guess he can.
Does anyone think that 100 in 100 engines that the head is on tight enough? My experience was 1 for 1 that mine wasn't, causing a blown head gasket. Now I correct that problem before installing the engine. Not to mention installing a tank (8mm) and the tensioner (14mm). This guy is full of S##t.