I have a 98 zx2,my question is how do I adjust the timing on it?It will crank but won't turn over.Ive tryied everything I know.it gets spark,fuel,compression,I just changed the serpentine belt and IM thinking its out of time so that's why it won't turn over.Any help is greatly appreciated,I can't afford to pay a mechanic right now and need to get it running.Thanks.