We have recently purchased a Yamaha FT60BET (4 stroke) outboard which has been in storage for approximately the last eight years. It seems that the outboard was used commercially in it's early years and likely was on a vessel which rarely left the water.
Removed the spark plugs and dropped a bit of oil in each cylinder. We then ran a compression test resulting in (from the top cylinder) 107, 102, 77, 75psi. The figures seem low to me. Anyone able to advise what they should be?
Following this we changed the old oil filter and oil and turned the motor over a bit using the starter motor, before cleaning out the fuel filter, refitting the spark plugs, rebuilding the water pump, connecting the fuel and starting it. Took a while but it started (to our surprise) and reved happily once going.
While running fuel comes out of the top of the carburettors. Any advice to tackling this? I thought perhaps sticky float needle or damaged float, perhaps some gunk built up in there from the many years in storage... I probably need to pull them off and take a look.
Removed the spark plugs and dropped a bit of oil in each cylinder. We then ran a compression test resulting in (from the top cylinder) 107, 102, 77, 75psi. The figures seem low to me. Anyone able to advise what they should be?
Following this we changed the old oil filter and oil and turned the motor over a bit using the starter motor, before cleaning out the fuel filter, refitting the spark plugs, rebuilding the water pump, connecting the fuel and starting it. Took a while but it started (to our surprise) and reved happily once going.
While running fuel comes out of the top of the carburettors. Any advice to tackling this? I thought perhaps sticky float needle or damaged float, perhaps some gunk built up in there from the many years in storage... I probably need to pull them off and take a look.
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