Ok I'm not sure I understand what you are saying.

When you switched the wires (at the coil) it should have switched which cylinder is firing.

Is that what is happening?

You may want to run a compression/leak down test.

 

im about 100% sure its not your intake if it was it would spit and spudder but not front to back when mine was cracked it idled fine just when i reved it it poped and cracked but what your saying happin to me and i had to replace the ignition module

 

Just pull the wire and stick a screwdriver in it and see if it sparks to a fin and jumps a pretty good gap, if it does, you already tried a plug, move on to fuel or compression.

Does front cyl pickup any with enricher or hand choking at fast idle?

 

It did not change when I switched the wires. I know It weird. the front cylinder still didnt fire.

 

Do a quick check for intake leak with some wd-40 or something.

The plug looks wet or dry?

 

Seems like it is safe to say your coil is fine and you have a spark. Check the sending unit in the nose cone it is usually obvious if they are blown, do a compression test ensure gas is reaching the jug should be obvious on the plug. If that all checks see if your buddy will let you try his ECM. Start with the simple and cheap the work your way up.

 

Great spark jump. And only the rear cylinder picks up when I use the choke.
Not sure what your getting at bucker.

 

Thanks guys I got some work to do. Any suggestion on type or brand of compression tester? Tried on that was from oriellys and I almost couldn't get it out of the jugs.

 

Do a quick thumb check, compare how hard or loud it blows when you try to cover the plug hole on the front then rear cylinder

if compression loss is enough to not support combustion at all, you'll be able to hold the plug hole close and not blow out, or very little.

 

yeah LockTight use your thumb for something usefull for once haha