I would appriciate your help.
Joe 301-904-9993

Fandago
 

Please get in touch with me

It's odd that both of them now won't fire. Were you parts swapping between motors? If so what was the last part you swapped over? Here is a pic of the old style distributor sensor, the new one style has molded in wires, and should come with a 'kit' to adapt if you have the stud style. Again this was on an HP500, pretty simple ingnition system.

I have the new style system in the distributor now, the only parts that were swaped were the ignition modules. I checked the coil and found that I have good fire at the positive and negative sides of the coil. when I put the test light in the center coil wire it shined very dim.

What is some more background on the issue? Did it just up and decide not to start one day? Batteries holding a good charge still? If you pull the coil plug off the coil, does it cross arc from the center post? Or if you have a helper you could hold the coil wire off the distributor some and see if it will arc across. Just use some insulated channel locks to hold the coil wire, it will give you a good shock. But if you aren't getting spark there, then work backwards, which it sounds like you already are.

Pictures of your setup definitely would help.

Wouldn't be the first time we chased ignition problems when we didn't have enough fuel in the boat/car/etc. LOL.

Dumb suggestion. Check the kill switches

Billy, thats the first thing I did check, however, thats exactly how its acting.:mad:

You probably have checked this but I will throw it out there make sure the main harness plug on the engine is pushed on all the way and I put a hose clamp around it if there's not one now. You can use a grounded test light to check for spark at the coil center tower with the coil wire removed have someone crank it over and hold the test light a 1/4 inch from the metal connector in the coil if there is spark you may want to ohm the coil wire and also check the rotor for a hole burned through the top of it allowing the spark to go to ground.

another thing that I have seen happen on more than one occasion. sounds like with what engines you describe, you most likely have a billet camshaft(roller cam). It is possible that you have eaten up a dist. gear due to wear on a bronze gear, or you were running a steel gear that is incompatible. Make sure the rotor feels "tight" when you wiggle it. then observe it while you are cranking it over to make sure it is spinning.