Yamaha 2 stroke-5,300 hours...

[Jack_Montana]

Montana and i just got back from Thailand and we chartered this boat 3 times in 4 weeks and it has 5,300 trouble free hours.The Thai guy says he services it every 12 months and never flushes the motor.

We caught 67 fish of Phi Phi Island,what bag limits!!!!!!

[finga64]

How old is it??
Did it ever stop??
I reckon the hour meter is stuck on. ;)

[Jack_Montana]

Not sure how old it is but the first week it had 5,160 hours and the last week it had 5,305 hours on it.So by my calculations it runs about 40 hours a week which is probably about right as it's chartered most days.

The hour meter is digital and works fine,it's the first thing i looked at to see how many hours these donks do.

[FNQCairns]

Nice!! did you ask him or see what his max RPM is?? ;D
They can all do it in theory if not abused by proping choice but a person could expect it might be getting a bit noisy??

cheers fnq

[Noelm]

hey as I said before many times, a modern 2 stroke will almost never wear out, something kills them long before they wear out, trust me on this one.

[BaysideMarine]

But hang on Noel.......

Over in another thread some have been talking about needle rollers wearing out.......

By the way, I agree with your above perspective entirely.

Cheers,

Nicholas

[griz066]

Sweeeeeeeeeet gettin his moneys worth out of it then 8-) 8-)

[Noelm]

with proper lubrication, a set of needle will almost certainly outlast the owner (sometimes) sure you get the odd "dud" a dodgey roller or surface, things happen and all manufacturing has it's failures, but normally, they will not wear out, you only have to look at the "big end" on an old Victa mower, it is still good after the whole lot is at the dump because the rest has fallen to bits, and they run in dirt, dust and crap, with bad fuel and limited oil

[BaysideMarine]

No argument from this end Noel.... :)

Thats what I was trying to say in the other thread.... These arent soft cranks and white bearings they are very tough hardened rollers and surfaces.

No. 1 enemy as you know is water and bearings...

Good to see someone else thinking the same way.

Cheers,

Nicholas

[Roughasguts]

Not bad but I would hope for me.
15.5K to buy the motor, and all those hours means it cost him $2.92 for every hour.

Where as mine is around $43.00 an hour Bummer.

[Jack_Montana]

We're going back to Thailand in March and it should be pushing 6,000 hours by then,i'll take a pic of the hour meter.

I told him he should be servicing it every 100 hours or at least every 3 months.He is servicing it every 12 months,which means at roughly 40 hours per week,he services it every 2,000 hours which is crazy!!!!!!!!!!!!

[saurian]

Jack , it's still going isn't it ???
Maybe not servicing motors keeps them going longer ???
Maybe we have all been duped ???
Anyway he's got his monies worth and some.
Ta

[Noelm]

the thing here is USE, something used all the time will last longer than a once a year on holidays job, look at taxis and stuff, they go lots longer than a family car, (milage wise that is) an outboard is the same, "use it or loose it"

[saurian]

Noelm , agree with you on that one .

[Kerry]

Yes use it or use it, there has not been an engine made that likes sitting like most recreational outboards do, yes that's 2S's and 4S's absolutely no difference, if you don't use them they will simply stuff up.

Now the unobvious question ;) when they replace the outboard do they also replace the hour meter :-?

[beaross]

Yes use it or use it, there has not been an engine made that likes sitting like most recreational outboards do, yes that's 2S's and 4S's absolutely no difference, if you don't use them they will simply stuff up.

Now the unobvious question #;) when they replace the outboard do they also replace the hour meter #:-?

Haha, yes, first thing that came to my mind...

[kleyny]

im with kerry if the more you use a motor the longer they last.
taxi last around 1mil most times with being touched, trucks 2mil, and my dads ride-on 1000 of hours still not touched (he's a maintainance/mower man)
even heard a driver trainer only changing his oil every 60thou now its got 300thou and only had to clean the oil pick up once . this was a mitsubishi lancer.

mind boggling really

[snelly1971]

Dont agree with roller bearings outlasting the owner...my 200 yammie just done 1600 hrs...always serviced and just shit itself....roller bearing collapsed wrecking the crank...all other rollers were intact but worn to buggerie.....

[BaysideMarine]

What shaft length Snelly and what boat?

Most unusual for roller bearings to fail although I have heard a few reports of 1000+ hr Yams doing it.

The bearings won't have failed just for the sake of failing. There has to be a reason. Could possibly come down to bad batch of bearings or excessive water intake would be more my guess. What did the crank journals look like? Much evidence of water ingress??

Cheers,

Nicholas

[Bashir]

we had a 1978 100hp evinrude with around 5000 hours on it, needed to be tuned after every 2nd trip but it still went well with heaps of power.

[peeler]

very interesting