Put the boat in the water today to see if it would run OK under load after getting it running on the muffs. I had to adjust the pilot screws out to 1 3/4 turns as they were set at 3/4 turn on the upper carb and just less than 1 turn on the lower carb. Seemed to run time on the muffs.
Had a little trouble getting it started, but it started and warmed up setting at the dock. I idled it out of the marina and slowly gave it throttle. It wouldn't get the little boat up on plane, so I babied it a bit and got the engine up to operating temp and then tried again. It sputtered a bit, then took hold an came up on plane and took off like a shot. I ran it for a few minutes and then decided to slow down and troll for a little while. The engine idled down OK and seemed to be running on all cylinders. I shut it down and fished for a 1/2 hour or so. When I got ready to head back to the dock, I got the engine started but it would not come up on plane when I added throttle. So I idled it back to the dock. It seems if was not hitting on all cylinders. I noticed that when I was adjusting the pilot screw that the upper adjustment didn't seem to make any difference where the screw was set. That tells me that maybe the jet is plugged up. I will have to pull that carb and try and clean it out. I will check to see if the top two plugs are fouled. Any other thoughts would be appreciated......
Had a little trouble getting it started, but it started and warmed up setting at the dock. I idled it out of the marina and slowly gave it throttle. It wouldn't get the little boat up on plane, so I babied it a bit and got the engine up to operating temp and then tried again. It sputtered a bit, then took hold an came up on plane and took off like a shot. I ran it for a few minutes and then decided to slow down and troll for a little while. The engine idled down OK and seemed to be running on all cylinders. I shut it down and fished for a 1/2 hour or so. When I got ready to head back to the dock, I got the engine started but it would not come up on plane when I added throttle. So I idled it back to the dock. It seems if was not hitting on all cylinders. I noticed that when I was adjusting the pilot screw that the upper adjustment didn't seem to make any difference where the screw was set. That tells me that maybe the jet is plugged up. I will have to pull that carb and try and clean it out. I will check to see if the top two plugs are fouled. Any other thoughts would be appreciated......