Break in?

I purchased a new ride this spring. I’m looking to put her in next week down in Pool 4 to break her in. I’ve got a new Yamaha 150 and T8. Both manuals say to run the motors at 2500rpm for two hours. Do I need to worry about anything else (water temp?)

I’ve heard from multiple sources to run the motor at varying rpms for 10 hours, never at wide open for more than a “little while”. This is what I did to my last two. No problems so far….

I would trust what Yamaha recommends. However if all they say is keep it “at” 2500 for two hours I would certrainly vary the throttle often and not keep it at any one rpm for a sustained amount of time.

Water temps won’t have any impact on your break in procedure.

Maybe this will help:EMU30173
Breaking in engine
Your new engine requires a period of break-in
to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help ensure
proper performance and longer engine
life.
CAUTION:
ECM00800
Failure to follow the break-in procedure
could result in reduced engine life or even
severe engine damage.
EMU27083
Procedure for 4-stroke models
Your new engine requires a period of tenhours
break-in to allow mating surfaces of
moving parts to wear in evenly. Correct breakin
will help ensure proper performance and
longer engine life.
NOTE:
Failure to follow the break-in procedure could
result in reduced engine life or even severe
engine damage. Run the engine in the water,
under load (in gear with a propeller installed)
as follows. For ten hours for breaking in engine
avoid extended idling, rough water and
crowded areas.
1. For the first hour of operation:
Run the engine at varying speeds up to
2000 r/min or approximately half throttle.
2. For the second hour of operation:
Increase engine speed as much as necessary
to put the boat on plane (but avoid
full-throttle operation), then back off on
the throttle while keeping the boat at a
planing speed.
3. Remaining eight hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.

Congrats on the new ride!

Follow what Skeeter Boat Center posted, and you’ll enjoy years of performance on that package!

Jami

I also bought a new ride this winter with a Yamaha 150 4 stroke. I was told by my dealer to not run it wide open and vary the rpm’s. As far as the 2200 rpms for the first hr.,?????? The only problem they have ever seen with a new 4 stroke were with 2 motors that idled allot in cold water when they were brand new.

Everyone is getting or has their new boats… I am trying to stay patient, mine is eventually coming. I have dreams of driving to Skeeter Boat Center and picking it up. Going to be hard to keep the patience when it warms up a few degrees. Still over a foot of solid matter on our lakes in SE WI. Rain helped a bit, but this darn re-freeze. Looking forward to breking in my new one. Congrats on yours!

Thanks for all of the excellent advice. I’ve had the boat (it’s a G3 185F) in the garage for a month now…..Dying to turn the key

I’m a fan of not babying it, but not beating it, I give a good amount of throttle to get it up to the “max” rpm (for the given portion of the break in procedure) I want the engine to work while breaking it in, thus far I’ve never had an issue in all the engines I’ve broke in, the only problems I’ve seen have come from people babying engines.