Bought a motor today

[Converted]

I found a really nice 15HP Johnson in the Stuart paper. That mud motor will have to wait untill next year.

I've been playing with some camo patterns. It's not done yet and I've got fastgrass for the top but this is what she looks like now.
http://www.myfishingpictures.com/img/005362.jpg
http://www.myfishingpictures.com/img/005363.jpg

[duckmanJR]

lookin' good!......only a few weeks till the maiden voyage in the marsh.:)

[D Duck]

that's a really slick little marsh boat you've built. Got me to thinking about boat building and I have been really looking at the Kara Hummer - easy to build (don't need a motor :D) and would be a really fun project. Gonna have to wait until after duck season though - I'm booked up for the next 2-1/2 months. :D

[Converted]

Well, good news, bad news... The motor starts and runs great. I was a little leary about the amount of water it was pumping so I replaced the water pump. The compression is 94lbs and 89lbs so that checks out. The problem is that it won't get up and go with the boat in the water. It runs smooth but it runs like a 5hp not a 15. I'l start tweeking and see what I can find. One possible problem is the prop. It got a 10x5. The motor was on a 10' avon. I might try and find something like a 9.5 with more pitch.

[uncle D]

Good looking boat. Have you re-worked the carb?

You might have compression but a jet might be clogged or a float stuck.

How're your power packs?

Duke

[duckmanJR]

You could have a plugged high speed jet in the carb...If a motor sits as short as a couple months it can happen. An easy to clean carb job..........but a 10 X 5 prop?? That sounds like WAYYYYY too small of a pitch for anything short of Cleopatras barge!
Common wisdom for props is like this... If you have a light weight boat and will shove a light load and you want speed... small diameter with as much pitch as will let you reach the red-line(probably 5500 RPM) Look at a race boat and you will see tiny props with really raked out looking blades.
Now, for heavy loads it is opposite...large diameter with small pitch will let the RPM come up and the large diameter blades are more effecient at moving water. Large inboard boats try to get square(14 X 14 etc) to make the most effecient compromise.
This is generalities and I could expound on racing applications or on proper blade selections and cupped vs uncupped etc but I would go with this.... load the boat how you would normally run it and prop to that load. :)

[Converted]

I picked up a 9x10 weedless prop, carb rebuild kit, and new plugs from a "hole-in-the-wall"OMC dealer in Jupiter. He's convinced the carb just needs a good cleaning and that barge prop had to go. I'll post the results in a day or so.