I set the timing on my 71 998cc today. I checked the haynes manual i had to get the specs. It had a bunch of different models listed , and to the best of my knowledge it said for 1969-1972 to set the 998cc's to 5 degrees. My car was set at 10 degrees beyond tdc. I finally put the rebuilt carbs back on, adjusted the valves, and we set the timing today. It seems to be running great. Just wanted to verify that the 5 degrees was right. Engine seems to be completely stock with no aftermarket mods etc...

 

Static @ 5'
Dynamic @ 8' (vac advance hose closed off)

 

The best way to check that your timming is spot on is.......
1) remove rocker cover and then turn engine over in correct direction of rotation untill NO:1-2 valves (rad end) are rocking this means that this piston is on the firing stroke.........
2) remove dizzy cap and put a dot of white paint opp rotar arm on block..
3) now replace dizzy cap and loosen dizzy clamp and then turn dizzy untill NO:1 lead is opp dot and lead order is 1-3-4-2 in anticlockwise order........
this should give you a good timming and then you can fine tune with strobe light..............

 

Valves are "rocking" at top of exhaust and start of intake stroke, exhaust valve is just closing and intake is just starting to open.

One more revolution would be top of compression stroke and start of power stroke, both valves would be closed at this point.

Should be a timing mark on flywheel to find Top Dead Center, same as you use with timing light.

Ignition should occur every second revolution just before top of compression stroke and would change from centrifugal and vacuum advance,
which is why you set with timing light, at idle speed with vacuum line disconnected.

If you adjust ignition points, you must recheck with timing light.