Originally Posted by 9D280
Engines connected with a bar as per twin steering on a wheel .
Modify the tiler on one to take auxiliary throttle cable(s), connect same to the other engine.
If it's a modern engine with tiller gearshift ditto, if not, you just manoever with the engine nearest you's gearshift and leave the other in neutral / switched off.
Barrus (I think) used to sell something called T.E.S.T. but as google removes the dots finding it is a pain.....
Seem to remember the early RNLI ,, C class lifeboats ,
based on a zodiac grand raid 17 ft inflatable which was powered by 2 x 40 hp outboards.
seperate units but they needed 2 crew to operate each engine gear lever (though each lever did have a longer extension rod to the front of the engine with a large knob on )
Although they did have a steering linkage-bar think it was the later ones that had the combined throttle / gear set up which may have been a joint effort between rnli & Barrus ,
trying to work out what T.e.s.t stands for .
Pic from an old Barrus ad with a C class .talk about having an arm like Popeye lol.