how to tune power jets on a gas motor?

[1990 5.0 gt]

I have a 4 mil and it has power jets and i have no clue how to ajust them or what color the plugs are saposed to be? i am new to this any suggestions?

[wesw]

dont know how big your carbs are or what size of motor you have beside a 4mm

 

what brand of carbs are they.

 

 

 

i would suggest open them 3 full turns and work down doubt you will need to open the pj all the way on gas.

 

and then work your way down half turns till it keeps pulling and runs smooth.

 

on my lectrons im about 3/4 of a turn open.

[1990 5.0 gt]

they are 35.5 mikuni flat slides. what color are the plugs saposed to be? my friend said to get rid of them and just run my carb without them and re jet them.

[trex565]

most people dont use them on gas there for alcy.turn them off jet bigger and go from there to check your plugs you run wide open then shut off clutch pulled in then check plugs should be a bown color

[mopar1rules]

most people dont use them on gas there for alcy.turn them off jet bigger and go from there to check your plugs you run wide open then shut off clutch pulled in then check plugs should be a bown color

 

you mean...."should be a cardboard brown color on insulator end and halfway down the ground strap"....LOL.