Does anyone know the timing settings for a Mazda f8 motor?

I have two F8 1.8L Mazda motors (1985 and 1990). Timing settings are the same for both. Warm-up the motor and turn all accessories (and lights) 'off'; then adjust idle-speed to 800RPM (manual) or 850RPM (auto) using the throttle adjusting screw; then adjust timing to 6 +/- 1 degrees BTDC. (This info was taken straight from the vehicle). - Hope this helps. If this doesn't work, remove and clean distributor very thoroughly. They have a habit of getting very dirty inside if the seals are bodgy. Make absolutely sure that the distributor is put back EXACTLY in the same position as it was removed from - this is critical. If you need more info on this, then contact me via my email.