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1992
yes the crankshafts are the same
1992
10 degrees BTDC ( unless engine compartment decal shows different )
1997-1999
The weight of a Yamaha 85aet or 85a build in 1989 - 1992 is 119 Kg
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Tjhe 4BE prefix suggests a Yamaha 225DT from 1992.
.028-.030
255 cc each fork
The Yamaha Warrior is a high performance four wheeler, but it isn't automatic. So yes the gears have to be changed manually.
The 1992 model, 25 hp Yamaha outboard requires a 50:1 ratio. One pint of 2 cycle oil, to six gallons of fuel.