I had an under drive pully installed on 1990 TII and trying to check the timing.

The Mazda Trix under drive pully has 4 marking on it( .08 cm apart ).

My stock pully has 2 markings, red and yelow at 1.5 cm apart.

Should first marking on the Mazda trix under drive pully be painted RED and

follow by yellow on the next marking?

Thank you

 

The stock marks are 20ATDC and 5 ATDC.

From Mazdatrix website:
Timing marks at -10 (ATDC) 0, 10 (BTDC) and 20 (BTDC)

This seems to me that it'd be a bit difficult to time correctly as none of the marks are the original 5ATDC.

 

leading mark is yellow, trailing is red,,
the yellow is the 2nd from left,, but third from right when viewed on rotating engine
ie,, 20BTDC, 10 BTDC ,, YELLOW TDC and red 10 ATDC trailing

this is taken off the earliest of single dizzy pulleys,, when timing was TDC and -10
be aware its going to give you the same trailing timing as a s4,,,but leading will be 5 advanced
( meh )

OEM timing can be established by moving the CAS suit the trailing timing being = 20 ADTC
- then obviously,, the stock ecu will post the correct 5 ATDC leading idle timing
( but not show fully correctly to the yellow mark on the odd pulley )