96 50 hp 3cyl Johnson

[Tigerbop]

MOtor running fine. Got out of gas to cross wake, Motor would not rev back up. Motor eventually powered on up enought to plane boat but cuts out really bad around 3 to 4 K RPM's. Cranks right up and runs great til the 3-4k RPM range. Can slowly add throttle and "sputter" will move on up to higher RPM range. Carbs cleaned, new plugs. Feels like all 3 cylinders dropping in and out at once.

 

[fireman57]

Re: 96 50 hp 3cyl Johnson

First of all, Welcome to iboats. When it sputters give the primer bulb a squeeze and see if it picks up. If it does you have a fuel problem. Maybe stuck float, weak fuel pump, air leak.... If it doesn't help then I would do a spark test when it does this.

 

[Tigerbop]

Re: 96 50 hp 3cyl Johnson

Thanks fireman57 for your help. JFYI and memory bank it was the power pack. I was hoping for an o-ring failure or something "cheap" but not so lucky. Thanks.

 

[fireman57]

Re: 96 50 hp 3cyl Johnson

I was hoping it wasn't the pack that's why I wanted you to check fuel first and then spark.