All help is welcomed.....i got the ski out over the weekend to find out it just will not start. I checked for spark and im getting some but feel it should be better. Pto side is weaker,but still there. I have checked all my connections,cleaned all grounds, cut the plugs on both ends(which did increase the spark),put in new iridium plugs,disconnected mpem white wire to coil(no spark),even sprayed starter fluid in plug holes. She sputtered one time, blew some black stuff out exhaust and thats it. I checked compression shes at 50 both cylinders.(shes getting old).i wanted to get one more season before rebuild. Im open to questions,comments,or cuss words.