So on my last ride last year I had the bottom cyl fail on me, I managed to limp it home on 1 cyl.

I pulled the plug and it was of couse soaked. I grabbed a couple new plugs put them in and still no bottom cylinder firing. Pulled the plug, grounded it and kicked it over, there was a spark, weak and intermittent.

So to eliminate the possibilit of a coil issue I swapped the coils and then the problem duplicated itself in the upper cylinder, not firing, and the bottom cylinder now fired. Ok, so I figure I will order some coils from Tyga.

Procrastinated all winter and still haven't ordered them! I was reading last night the fantastic post on coil testing...now I am confused.

Both of my coils test to the same specs. .3 ohms between terminals however they both have a resistance of 28.9 from terminal to boot.

My question is this, are both coils in need of replacing...if so why did bottom coil NOT work in the top cyl if the specs are the same and why did the top cyl coil work on the bottom?

Confused, and is there only the rear coil avail new?

Thanks for input fellas.