4 weeks ago I purchased a pontoon boat with a 90 horse power Force motor. It ran great except for it would not recharge the battery so when I used the accessories- lights, radio,etc. the battery would die. This boat just had a new stator installed before I purchased it. So I asked the mechanic who replaced it to check on it. He has now replaced the switch box, all three coils and still had a charging problem. They said water was leaking in from a head gasket and causing a short. All gaskets have been replaced including exhaust seals where they say is where the water was leaking into the system. Now they say the compression in the pistons is out of wack. 1- 135lb 2-115 3 -145<br />but it is charging the battery at about 13-14 amps. Now they are telling me that just one piston is not firing and the other two are fine. Anyone ever heard of these problem and can suggest a cure? I have read a lot of good advice coming from you folk so I thought I would join this forum. Thanks for your input! PS the mechanic said he's never seen anything like this and is a qualified boat doctor.<br />Thanks