FAILED first ride.

[Teth-Air]

Sorry for the blanket statements, I am not speaking to all…. I am directing this towards people that always have motor troubles…. ( But trust me there are alot of failed 850’s ) And do not for one minutes except SUPPLY CHAIN DELAY !

( 100% ) - of the entire bean counter staff at Polaris should be fired Tomorrow - They are ruining the company at record speed.

Next they need to stop listening To Chris Burandt about everything under the Hood, ( Sorry Chris not trying to slam you, Just because it’s fast and fun for a few weeks doesn’t mean a 900 is Consumer ready ) The New 900 will most likely suffer more problem then all 650, 850 Patriot motors. ( A lite-weight flywheel is almost as dumb as a roller bearing PTO bearing. )


as For the cylinder finish…. It has gotten much better, but some are terrible so there is a quality control problem the reason the ring locators fail is because the ring is getting to got….. it’s glowing Red Hot causing the anti-rotation pin to fail.

and depending on how you ride there are many many sleds that run great for many years, But if you are a mountain guy that Makes lots of long full throttle pulls early in the motors life the ring life is 15 to 25 hours at best.

These new motors need pre-mix….. and they need to be broke in very gently and after break in they should be re-ringed.

As for the PTO-End Roller bearing design it is a complete design failure.

For all those that have had good luck……Great for you and I hope you get many many miles….. But let it be known Ht e failures have for the most part run Polaris out of motor parts.

And for the over heating statement I made……. Spring is coming and the Short tunnel short heat exchanger sleds are going to be impossible to keep cool on the trail….. and conventional scratchers will not work.

The 900 Will give Polaris the Big Boy company ( Chest Pound ) but my guess is it’s going to be a train wreck.

The Roller Bearing PTO -end is a big mistake.

advise I would give….. Buy a 650, or an 850

Seems strange, Indy Specialty is building a new heavier crankshaft for the 850 and 900 Big Bores, And Polaris went to a lite-weight fly wheel ???? - In the past lite-weight crankshaft, lite-wheels close to 900 cc’s has been a death sentence….. The 900 Needs a heavier flywheel, and it needs a heavier clutch.

I would completely support Polaris on the 900 RMK if it was advertised and sold As-Is -No - Warranty ( Then the whole project makes sense.)….

Then the public would know what they were signing up for.

Dan

Thanks for clarifying and sorry if I mis-quoted you. It was some time ago and that was my take-away from the conversation.

 

[Teth-Air]

So because your sled made it 4300km all 850's are good? [emoji848]

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No, my point was all are not bad. The impression I got from Dan at the time the motor was released was that all would fail.

 

[Jaynelson]

Other than the initial widespread and well-documented 2019 850 motor issues (case sealant blocking oil flow, bearing tolerances, crank seals, etc) - the 850 has been a great engine for us. I have sold (literally) 100's of 850's (100% mountain models) and can't think of a mechanical failure stemming from internal engine parts on a 2020 and newer 850. Have done some injectors, fuel pumps, the very odd crank seal - but have not seen one hour'd out yet (several at 4-5,000kms+), seized up, or bottom end blown. There might be 1 I'm forgetting - but point being it has been a very solid motor for us mechanically.

 

[HECKS]

Cats been running short coolers since 2013 with conventional scratchers and no issues, and their tunnel is not much longer than a slash.

But Cats have a bulkhead cooler aswell, where Polaris doesn't.

 

[Sheetmetalfab]

But Cats have a bulkhead cooler aswell, where Polaris doesn't.

Actually there is a bulkhead cooler.

Lots of early season ones have been punctured.

 

[HECKS]

My bad, never noticed them on these Matryx models before.

 

[Clark42]

I’ve had 4 850 engines put in my ‘19 to date. All locating pin failures.
The last engine only has 80 miles this season. Probably won’t get many more in ‘22.

I'm just curious, after this experience, have you considered a different manufacture?

 

[indydan]

I’ve been riding short coolered cats since 2014, short coolers do the job. The only time there is an issue is rock solid frozen spring mornings, but all the sleds in the group long or short cooler heat up on those days.

I hope for Polaris’s sake your right….

 

[summ8rmk]

I hope for Polaris’s sake your right….

I have experience with all mountain brands in our group.
On hard icy trails, Axys runs the coolest, close 2nd is cats short cooler, 3rd is Matyrx slash, 4th is doo's G4. G4 is by far the worst for cooling on ice.

Take the snowflap off the Axys and it quickly moves into 3rd or 4th place.

Standard Matryx should be fine.

Toss a snowflap on a slash and it will be fine on hard trails.

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[TRS]

I'm just curious, after this experience, have you considered a different manufacture?

WHAT, no way. Warranty is a good thing.
Can’t let my tools rust.

 

[NHRoadking]

I have experience with all mountain brands in our group.
On hard icy trails, Axys runs the coolest, close 2nd is cats short cooler, 3rd is Matyrx slash, 4th is doo's G4. G4 is by far the worst for cooling on ice.

Take the snowflap off the Axys and it quickly moves into 3rd or 4th place.

Standard Matryx should be fine.

Toss a snowflap on a slash and it will be fine on hard trails.

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What snowflap on a Slash? Buddy has been looking for one and has not found one.

In our group, the Doos run cooler and the Poos run hottest on hardpack.

 

[summ8rmk]

What snowflap on a Slash? Buddy has been looking for one and has not found one.

In our group, the Doos run cooler and the Poos run hottest on hardpack.

Both g4's are 2017 165.

Maybe the 2017 is a bad yr for overheating Doo's?
They will be 200° when the Axys(2019+) are 130-150°, Cats 160°. Matryx Slash is only ~10° hotter than cats with snowflaps.

U will have to make ur own slash flap until the aftermarket steps up next season.


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[Teth-Air]

What snowflap on a Slash? Buddy has been looking for one and has not found one.

In our group, the Doos run cooler and the Poos run hottest on hardpack.

In our group all the Polaris sleds run with no snowflap (AXYS) and are the coolest except when the Doos clip on their snowflaps, then it is pretty equal.

 

[Clark42]

WHAT, no way. Warranty is a good thing.
Can’t let my tools rust.

Wow that Kool-Aid must be strong...

 

[indydan]

My matryx slash boost runs cooler than all the Axys sleds in our group. (12 of them 2016-2021 sleds)

My guess in spring trail traveling to get to snow the short tunnel sleds will be over heating badly

 

[kanedog]

Well my 22 Matryk slash 165 na finally showed up on Friday, woohoo. This is not my first sled by a long shot so I was able to handle the long over due arrival of the ride. Unfortunately 15 miles into my very easy ride I needed reverse and it died out, after starting and trying 3 more times it finally wouldn't turn over anymore, my thought was junk battery. NOPE the rope wouldn't even come out, so I grabbed the clutch and she was tight. The sales manager actually stopped over my house to give his condolences and is taking it back to the shop today. After 10 years on a cat my first poo since the dreaded 09 - 800 cleanfire junk which that sled quit on my way home. So I'm zero for 2 on new Polaris's.

Hahaha

 

[PaulAnd]

Hahaha

And there he is! ^^^
Missed ya bud!


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[chickenstixx]

skipping all the bullcrap in this thread:

did they tell you the reason for failure? bad oil pump, case sealant blocking oil, piston seizure, anything?

 

[pruner]

skipping all the bullcrap in this thread:

did they tell you the reason for failure? bad oil pump, case sealant blocking oil, piston seizure, anything?

I Haven't heard what the problem was. I did ask and Polaris said don't disassemble just send it back complete.

 

[PSI 800]

Interesting, a buddy of mine just had his go down as well last week end and waiting to see what the cause was as well.