Saving Old Seagulls

With two adults it'll do a little over 11 knots and just shy of 6000rpm. Hull is 15'11". It's not the fastest Century combo either...

How a Silver Century should run...
http://www.youtube.com/watch?v=uzcHqkPtmtU

More pictures (with pics from 2003):

http://risr.shutterfly.com/

Pictures:

Hugz, Do you have any more pictures like that? I've seen that same 170 with a scooter pipe on SeagullParts.co.uk Here is the 5r on a hull: http://i273.photobucket.com/albums/jj236/doppler491/niceseagull.jpg And here is another similar setup: http://i273.photobucket.com/albums/jj236/doppler491/IMG_15...

I would hazard a guess that 1/4" ply in 4'x8' sheets is most commonly used on our hulls. 1/2" thick ply might sometimes be used for the transom, etc. And if I recall correctly, the white hull with #13 painted onto it used a total of 3 sheets of 4'x8'. Don't quote me on this though.

All hulls use straight pieces of ply in their construction. Although most have more square-type transoms (probably due to ease of build), I'm inclined to say that the more diamond-shaped transoms are faster - but that might also be due to the engines that are on them! I'll post some pics of the diff...

Just a small video I made the other day.
What do you guys think?

http://www.youtube.com/watch?v=BPZ2orKsCb4

So were there two types of AMAL 420 carbs? One for fuel pump and another for regular, gravity fed, engines? If so, was the Kingisher the only Seagull model that had the regular (non pumped) 420 carb on her? Help is much appreciated...

Was just looking for a quick answer to the following question(s)... a) Are all 102cc cylinders interchangeable? - more specifically will all 102cc cylinders fit onto a Century Plus casing b) Granted these engines are hardly meant for racing, what cylinders lend themselves to quicker top speeds when ...

Yep, that helps alot. I will have a look at my carb when I get home tonight. Now another question, does anybody have an Amal 420 carb then would be willing to sell? Pm me with the details, I currently live in Canada.

I can't seem to find the page I was looking for so I figured it was worth asking the experts here on SOS. Did British Seagull ever use the Amal 420 carburetor? Also, I have recently picked up a 416 carb and wanted to see if it had the 25:1 conversion...how can I tell if this is the case? Thanks for ...

Charles, you wouldn't happen to know the size of the crankshaft taper for the larger 102cc engines would you?

Thanks Charles, you really know your stuff! I have a lower unit that is un-useable at the moment and wanted to see if I could somehow use the parts from it in my currently working one if need be. I figured it would save me some money and was hoping the lower unit parts would be as interchangeable as...