Is my outboard shaft too short?

BonairII

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Joined
Jun 7, 2011
Messages
2,727
Here's my setup....1980-ish BonairII boat with 15hp 1960 Seaking (Gale Buccaneer)
motor.jpg

boat.jpg


Bought the boat last week and have tried 2 motors(SeaKing and 1956 5.5hp Evinrude Jubilee) on it and both motors had the same problem. The motors would shake a bit and the gear levers would buck. The 5.5 would kick itself out of gear, the SeaKing lever rattled until I held it down.

I ran the 5.5 for about 20 minutes and ended up returning it to the seller, who was surprised cause it ran fine for him last year pushing a 14' aluminum boat.

I tried the SeaKing today and since it started acting like the other motor, I'm assuming that my boat/motor combos are causing some odd turbulence behind the boat that is causing the motor to want to kick out of gear/rattle. I find it hard to believe that I bought 2 motors with exact same probs (both sellers guaranteed their motors would perform well and had no issues).

I didn't run either boat faster than 5-10mph btw.

Second problem: I can't seem to get the SeaKing to rev up. It starts quickly idles nice, and runs at low speed pretty well, but when I try WOT.....it won't rev up. I opened the choke a tad and the motor started to come to life a bit, but nothing major. I'm guessing that it's being starved of fuel somehow.

Any/ALL help is appreciated!
 

paulpost

Banned
Joined
Sep 3, 2008
Messages
90
Re: Is my outboard shaft too short?

I cannot call myself an expert but from what you said that and cote "I opened the choke a tad" is not what I know of the role of a choke it has to be opened alway up , even the name tels you that its role is to choke the air when you start the engine but this is just my opinion.
Good luck
Paul
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
Re: Is my outboard shaft too short?

Why buy smaller engines for that large sib ? Why buy oldies with probably no spare parts availability, buy a used second hand good condition 15/18 HP, 2 strokes short shaft engine and boat happily.
 

BonairII

Commander
Joined
Jun 7, 2011
Messages
2,727
Re: Is my outboard shaft too short?

Update: Seaking problem solved....It was a disconnected piece of carb linkage.
 
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