86 supra
 

ok now it brackfires puts out black smoke think it may be timeing but shur need some help its my first supra dont know a lot sbout em come on ppl i need so help how do u reset the timeing or any other ideas

As long as its black then its better then white or blue! But yes it does sound like a timing or ignition problem. I'd start with checking the timing.
1. Remove upper timing cover (should be 5 10mm bolts ones in the center of the timing cover so make sure you get it)
2. Remove all spark plugs (leave them attached to the plug wires and unplug the ignition coil!!)
3. Get a breaker bar and appropriate socket and slowly turn the engine over (its going to be tight with the fan and shroud installed but it is do able)

Here's a guide through the timing process:
http://www.cygnusx1.net/Supra/Librar....aspx?S=EM&P=7

If still in doubt about timing, remove your distributor cap and check the position of the distributor rotor, for proper timing it must point DOWN at #1 cylinder.

This should tell you everything you need to know/look for. Let us know if you have anymore problems.

i think it end up being a fuck up plug wire had to belive it can cause it not to run thank you for the help tho had to set it back a cuple of degess anyway

86 supra
 

Hi! , smoke colours explained :

black - excessive fuel - running rich ( blocked air filter? / cold start mixture setting stuck? )

blue - burning oil -- ring blowby / weeping valve stem seals .

white - ( steam ) - water in combustion chamber / blown head gasket .

Hope these help .