I know my hull isn't designed to go that fast, and that's why it porpoises. At least with only one person and little weight in the front it does.<br /><br />How can I fix this.<br /><br />I'm debating between hydrofoil and smart tabs.<br /><br />I don't want to scrub any top end speed, and...
I have a shot at buying a Fibreglass 500$ (US), 20ft I/0 Double Eagle (made in BC Canada) that is in good over all shape. The Volvo engine and drive have been taken out for parts.<br /><br />I am looking to put a 200hp outboard on it, and I'm not looking to spend a tun of money on custom...
I purchased some type of Sears aluminum cartop boat (yr.1971) that only gets 4 ft wide in the middle (I assume to fit in the back of a pick up truck) and has a flat (rear) bottom, round sides and a pretty low transom.<br /><br />I have a 15hp Johnson that I fit on it, and was looking for some...
Normaly when coming off plane, from 1/2 throttle to idle the engine seems to cut out, or miss. <br /><br />One of the blue power packs is cracked a little, and the other one (power pack) was replaced because of a stubborn idle (like what I am talking about) before I purchased the motor. (the...
I have a '75 Johnson 15hp that has only seen fresh water.<br /><br />I'm going on a 7 day trip where I will be boating in salt water. <br /> I know this motor wasn't designed for salt water because it doesn't have any sacrificial annodes (that I know of) and the paint job didn't have corrosion...
The motor reads 120psi on both cylinders. Motor is on a 12ft aluminum boat.<br /> <br />The problem is at lower rpm's (well before plaining speeds) the motor cut's out for a second, and re-covers itself. Then it does it again, until pushed to higher rpm. The problem doesn't always occur, it...
'75 Johnson 15 with 45 pnds. compression in both cylinders.<br /><br />Let engine tuner sit for 6 hours.<br />It smoked a lot(smelled kinda weird, like minerals) and got the water in my garbage can that I run it all white and greasy.(i'm afraid to dump it now!) Let the engine run for 15 min, no...
I have a 12ft cartop boat that's outsides need cleaning. It's not so much dirt, but about 30 odd years of EVERYTHING that has had a chance to stick to the aluminium.<br /><br />My theory is to get a variable speed buffer with possibly a somewhat adhesive pad on it with some sort of metal...
I see strim tabs generaly on bigger boats. Stabilizer foils (on the leg) I see on all sorts of boats. <br /><br />What about a li'll 12 ft. cartop? <br /><br />I have had experience with the motor mounted foil on an inflatible and the results were pleasing.<br /><br />Any pros/cons about the...
The outside of my aluminium boat is bare. I was thinking of a buffer and a lightly abrassive pad and some sort of metal (aluminium polish) <br /><br />Any ideas?<br />The aluminium is just a bit cloudy and has a few dark spots on it. Nothin better than a shiny cartop!<br /><br />Any input...
Has anyone had any experience with a bolt on stabilizer foil (ontop of the cavitation plate) for a 12ft aluminum boat?<br /><br />I have an 16ft inflatible with a 40 yami, with a foil on it and it reduced the amount the bow came up on plane, and also reduced lowest possible planing speed. <br...
Engine: '75 Johnson 15<br />Problem: 45 pounds of comp.<br /><br />Would it be better to tear down the engine, remove all the carbon from piston/rings and exhaust housing (and possibly replace rings and hone cylinders) <br /> OR<br />Spray some seafoam, engine tuner etc. and...
I'm new here. I have experience in repairing motorbikes and vehicles, outboards are a little new to me...<br /><br />I bought this motor rescently and the prev. owner had it to a marine shop to do the impeller, replace carb with a re-built one, and replace a coil. (not sure about a compression...
