Laptop
Digital multimeter Sugested able to read ( volts, Ohms, Temperature, Curcuit test )
Soldering iron min 15W ( changable tips point and flat )
Test lamp
Ratchet crimper
Heat shrink
Timing gun
Wire Strippers
RS232 cable
EasySync USB to RS232 converter (if Laptop does not have RS232)
A pair of small jewellers screwdrivers ( flat bladed ) for removing Pins from econoseal plugs ( one to lift holding clip - one to push pin out )
Liquid paper for marking Crank / TDC point
I'd add:
Can of carb cleaner for testing for air leaks
A note pad and click pencil for taking notes of what you have and haven't done, datalog names, msq file names etc
A decent battery charger that will provide a good charge overnight
A roll of electrical tape
Some short-ish bits of wire for making test leads (in combination with electrical tape
)
I'm sure we'll think of more.