Yamaha outboard problem, are they good?

Question

I bought a new boat saturday, I was tired of having to deal with mechanical problems with my old boat, This new boat had a 2004 yamaha 60 horse 4 stroke with only 40 hours on her, I was very angry the next day when she wouldnt get up to speed, wouldnt pass 2200 rpms, and she was choking for gas, The dealer said that the boat sat for 2 years, so could it be carbs??? Are Yamaha's good motors, or should I be worried??Thanks

Answer 1

Yamaha,s  are good engines and they are right on the problem with that one,usually the carbs will get gummed up if they set for a while,you should be alright with this one if they clean the carbs out on it,i own a Yamaha engine and they do good,i never let mine set for long though,their a very reliable engine,and usually wont ever give any problem,the problems your having is just from not being used,good luck with it.

Answer 2

yammies are fine.  this is typical of boat motors in general.

problem with boats is, people set 'em aside for long periods of time then take 'em out & run 'em hard.

as gasoline evaporates it leaves a kind of varnish behind.  Solution is to soak the carbs overnight in carb cleaner.

you might have to take the jets out & clean 'em good, use a single strand copper wire.  take care, if they get marred it messes up the mixture.

If you haven't already, drain the tank and refill with fresh gas.

adding Stabil or Seafoam to the fuel will help prevent this sort of thing in the future.

for future reference, don't buy a used boat motor without (at a minmum) a compression test.  compression gauge is about $25 and it'll clue you in as to the overall health of the motor.  Obviously you didn't get a lake test, but that's not always possible.

I'd do the compression test now, so you'll have a baseline for future diagnostics.

One nuther thing, the water pump impeller will take on a "set" after sitting idle for so long, and won't be as effective as it was new.  Worse, dry rot might set in, you don't want pieces of neoprene rubber up in your water jacket.  Impeller change is pretty basic DIY-type service, but impeller failure is always disastrous.

Answer 3

You have a good motor. Boats have a lot of issues, because they (most of them anyway) sit most of their lives. Gas nowdays goes bad in a couple of months, so I can see how the carb(s) could have issues.

Once this is fixed, you should have better luck with it.

I would invest in some Stabil - fuel stabilizer. Anytime you aren't going to use the boat for awhile you should put some in to preserve the gas so this won't happen again.