I've got a 35hp merc '89 or '90. The first time I put it in in the spring it runs fine. After it's been in the lake a while, it starts fine but seems to be running on one cylinder. After driving it 4 miles at 1/2 throttle, the 2nd cylinder will kick in. I've tried plugs. I found the float was bad and replaced it and for a while it seemed to run good. But it's back. Any ideas would be appreciated.,
