I have a good ground both to the motor and the body I've done exactually what you said and I also doubled it with jumper cables going from the battery to the motor the battery is new 1 week old its a red top optima battery I have decent voltage. and on top of that I have it hooked to a battery charger I've even tried starting it with my charger on the start mode 200A.
I have checked the spark as far as the spark plug wires and it have great spark on all cylinders.
The starter I replaced it with was brand new I swapped it out for a new one under warranty about a year ago just to have one lying around.
The main thing that stumps me is how it will turn with no plugs in it but with the spark plugs in it. It cranks about 1 full stroke then it STOPS instantly if someone could help me with this I am pretty sure the rest will just come together pretty simple after that well the basics anyway compression,spark,gas but I have never heard or had this problem with it just stopping like that
Thank you so much for your help GR8racingfool
