Buddy has a South Bay tri-toon on LOTO with a 275 V-Rod with over 1,000 hours on it now. Still going strong.

When we lived in Fla I saw stacks of dead Yammi 2 strokes everywhere.

Used to post pixs of pallets of them stacked to the roof of the shops on SF for the Yammi nuts over their!

When everyone was gah gah over their 4 strokes, I helped a couple of my neighbors w/theirs.

One was a 5 yr old 250 that my neighbor bought new, kept on a lift and flushed after every run.

He came and got me to ck a water leak coming out the rigging tube after a day of offshore fishing.

I tracked it down to a nickel sized hole, corroded through the top of the block, under the flywheel.
Was spraying the ignition w/saltwater all the way in.

Told him his options and was not a happy camper.

Neighbor #2 had a 3 banger Yammi 4 stroke, similar scenario.
Bought new, lift stored, flushed and a log book of maintenance.
Neighbor passed and I helped the widow sell the boat.

It blew up on the sea trial!
The Fla heat caused condensation (motor was covered) to form inside the motor which then drained into the oil pan.

The bearings, rings etc evidently prefer oil to water.

S Fla is where motors go to get tortured and die!

Short answer…they haven’t been out long enough to get statistically relevant data. Atleast by the small sample size of people that own them on this website.

old v6 yamahas 2 stroke ran great until you had to take them apart. you couldnt, the threads came out with the bolts. Porous aluminum made from recycled aluminum. They ran great many hrs but after a few years , not hours, they where so corroded you coudnt take them apart, they fell apart. that was salt motors, i worked on them for decades. I hope the four strokes arent cast from junk aluminum.

400R are great engines. The verado's get hate from time to time but I always see them with high hours. 2000 hours shouldn't be a problem as long as they're maintained. Gotta love that 7k rev limiter... spin to win!