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Polaris axys vs. skidoo 850 backcountry sleds

IF it goes 15000 miles??? New motor no guarantee its going to be reliable! Besides grandma won't make it another 15k anyway.
 
if the new doo goes 15000 miles.how many poo engines is that

I have heard that numbering a lot. Was this in a bench top test in a lab with perfect conditions at 4000 RPM +/-? No way that is a real world number. There isn't a chassis out there that would hold up that long for "normal" riding anyway. There's no way I would buy a used sled with 15k on it.
 
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That's funny to me also. I've seen more doo's go down in the group of peeps that I hang around than the other brands...
Crank issues on a 12, 13 doo... Twice on 13. along with a piston( yes all doo's).
And a 11 poo lost a crank... But it has a chit load of miles on it...
Point being, all sleds have issues...and all sleds have strong points..comes down to riding style, and customer service from dealer...
If I could afford it, I'd have a couple of each:)
 
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''if the new doo goes 15000 miles.how many poo engines is that ?"

7.5 ha ha couldn't help myself :face-icon-small-hap


I figure thats what you wanted to hear
not my actual experience :face-icon-small-win

Hey CAP what'd ya get ?
 
Ahh snowest...only place where a Polaris engine lasts 500 miles and a Doo engine that isn't built yet lasts 15,000


You forgot to mention the new clutch that never has to be rebuilt.
Dootards believe anything. It's quite entertaining watching the uneducated get fed a bunch of manufacturer hype and eat it up like it's true.
 
Ahh snowest...only place where a Polaris engine lasts 500 miles and a Doo engine that isn't built yet lasts 15,000


They last 500 miles?

The previous 2 out of 3 new Polaris 800 CFI Engine's I have owned didn't make it 400 miles before cracking skirts. Found on off-season teardowns for MTNTK Fix Kits.

The teardowns were a result of my decisions to check my engines based on the unwarranted, unsubstantiated claims made here and by other Polaris owners I know, ride with, perform work for, and by friends at dealers.


As many "new top end" Polaris for sale ad's as I see, why? Do Polaris owners maintain their sleds better than Doo owners? Did Polaris include extra pistons with new sleds? Do they like to install unnecessary parts?

Is it all just a coincidence? Are all of the pics of broken Polaris engines simply just fraudulant photoshopped images?

Take your head out of sandbox Jay. You're smarter than that.

Yes it can get somewhat overblown on here and it can be over the top by the heavy-handed guys that don't realize the TRA is just as bad but c'mon.
 
all the pictures of broken Polaris engines???? Are we reading the same forum because I don't see any broken engine pics in the Axys forum, and that is what the comparison is supposed to be, no? I bet you cracked skirts were pre 2013 when those parts were upgraded. I have put over 1200 miles a season on my last three Polaris sleds and haven't lost a single day of riding because of the sleds reliability. I have never even seen one that went down. Never seen a Doo go down in our group either.


Should you change the top end around 2000 miles? I think BOTH brands benefit from that. Can you run a worn out rotax longer than a worn out Polaris? Probably but that makes no sense to me either way...
 
You've been here a whole 2.5 months? You need to do some digging there boy. The statement I was responding to didn't specify "Axys" engine, it states "Polaris" engine.

Sure, cracking "cylinder" skirts has almost mitigated with the '13 MY. But the motor still loses pistons and cranks, up to MY '15. It still has fueling issues, as does the Axys due to the injector/injector placement that causes premature piston wear. I just rebuilt a '15 last week, with this problem. New crank, pistons, injectors at 945 miles.

I believe we will see the continuation of these design issues with the 800 HO '16 MY Axys. We didn't see the real story of the 2011 Pro-Ride RMK until the following season.

All I own are Polaris'. But you guys have got to take you beer blinders off. Get over it, Doo builds a better, reliable sled minus the TRA. Does it work better in the snow, I certainly don't think so. That's why I ride Polaris.

Anybody with any mechanical aptitude can pop the hoods off a Poo and Doo side by side and see the difference. And if you can't see the difference in quality between the 2 sleds, then you need to spend some time working on them.
 
I love the way my Polaris handles, but I also recognize that they need new pistons on a pretty regular basis. The AXYS will be no different, it will get a new top end over the summer with about 1500 miles on it.
 
I love the way my Polaris handles, but I also recognize that they need new pistons on a pretty regular basis. The AXYS will be no different, it will get a new top end over the summer with about 1500 miles on it.

From what I have witnessed to date, after a season, Indy Dans "new hone" will be my choice from here on out on any rebuild. Well worth the money.
 
You've been here a whole 2.5 months? You need to do some digging there boy. The statement I was responding to didn't specify "Axys" engine, it states "Polaris" engine.

Sure, cracking "cylinder" skirts has almost mitigated with the '13 MY. But the motor still loses pistons and cranks, up to MY '15. It still has fueling issues, as does the Axys due to the injector/injector placement that causes premature piston wear. I just rebuilt a '15 last week, with this problem. New crank, pistons, injectors at 945 miles.

I believe we will see the continuation of these design issues with the 800 HO '16 MY Axys. We didn't see the real story of the 2011 Pro-Ride RMK until the following season.

All I own are Polaris'. But you guys have got to take you beer blinders off. Get over it, Doo builds a better, reliable sled minus the TRA. Does it work better in the snow, I certainly don't think so. That's why I ride Polaris.

Anybody with any mechanical aptitude can pop the hoods off a Poo and Doo side by side and see the difference. And if you can't see the difference in quality between the 2 sleds, then you need to spend some time working on them.





I have been on snowest for years, over a decade, great assumption you made followed up with a stupid insult...


I have worked on both of my Pro's and maintain my Axys, My buddys '15 Doo and a fleet of old M-Cats. I have been around sleds for a long time, and I work on them, did an M1000 rebuild this fall. So spare me the lecture on your relative superiority.


I do not see a big quality difference between the two. The Doo has plenty of flaws too. The pistons in my '16 look great through the exhaust valve ports, nice wash, clean, no visible wear on the front side, pulls hard. I am happy with it. I am going to run it a second season. I bet it goes 2500 miles. I have never expected more than a couple of good seasons from a sled. You are going to be working on all of them by then.


I do not see the superior reliability of the motor to be a huge deal when the chassis is wearing out anyway. Better go through the whole thing after two seasons. I would rather replace it. Heck, if we have a good summer I might just trade again. It wont be for a Doo because it still isn't as good of a sled.
 
Another axys....2 of 4 doo riders in my group just got axys. We all spent time on the 850. I think the unknown of the new 850 has warded lots of guys off. Low number of these made means not a lot of part stock etc. if ski doo switches the whole xm line over to gen 4 things could be different but we all are gunna sit back and watch first. The axys has been proven mountain sled in our group... Ski doo needs to hit the tread mill and loose few more pounds and gain some things else were first!
 
You've been here a whole 2.5 months? You need to do some digging there boy. The statement I was responding to didn't specify "Axys" engine, it states "Polaris" engine.

Sure, cracking "cylinder" skirts has almost mitigated with the '13 MY. But the motor still loses pistons and cranks, up to MY '15. It still has fueling issues, as does the Axys due to the injector/injector placement that causes premature piston wear. I just rebuilt a '15 last week, with this problem. New crank, pistons, injectors at 945 miles.

I believe we will see the continuation of these design issues with the 800 HO '16 MY Axys. We didn't see the real story of the 2011 Pro-Ride RMK until the following season.

All I own are Polaris'. But you guys have got to take you beer blinders off. Get over it, Doo builds a better, reliable sled minus the TRA. Does it work better in the snow, I certainly don't think so. That's why I ride Polaris.

Anybody with any mechanical aptitude can pop the hoods off a Poo and Doo side by side and see the difference. And if you can't see the difference in quality between the 2 sleds, then you need to spend some time working on them.

Mis aligned injectors causing piston wear. now I've heard it all. We're did you come up with that theory?

The fueling issues you refer to might be called epa. Seems epa likes the afr reading of 14.7 to pass. That works very well on a 2 stroke for longevity by the way. . Put an afr gauge on it and you'll see what I'm talking about. Some lean spots on stock ecu fueling.


And your saying a di motor with 200 degrees Fahrenheit higher temps in combustion chamber over an sdi is more reliable?? With no lubrication/cooling to the connecting rods,wrist pin, wrist pin bearing . Heat/ friction is a killer on 2 strokes and the di motor is prone to it.
To say one 2 stroke is more reliable then another is a complete joke. Around here more di motors are down vs the sdi Polaris.
I run Polaris too but see more failures in the di motors from 3000 miles up vs the newer 800 ho. Now that 2 seasons have past for the 800 ho. We're seeing huge milers, 5-6 and 7000 miles on Ontario and Quebec sleds . And the pistons and cylinder are still within tolerances. That's a good thing.although there are failures. Not as many in the 800 ho vs pre 2013 cfi 800's. Does that mean the newer 800 ho is better then another 800 for reliably??
No.
They all break.
Playing the one is better the the other is getting old. It's a 2 stroke.
Heat and friction kill all makes
 
"Playing the one is better the the other is getting old. It's a 2 stroke.
Heat and friction kill all makes"

EPA here. You guys are lucky with the advent of the electronic oil pump and new oil line routeing or I would have outlawed all you two smokes by now even with EFI.

If I catch any one of you adding enough oil or fuel to your 2smoke (key word in there) to make it live,,,,, well I don't know what I'll do but I'll be mad.
 
Mis aligned injectors causing piston wear. now I've heard it all. We're did you come up with that theory?

The fueling issues you refer to might be called epa. Seems epa likes the afr reading of 14.7 to pass. That works very well on a 2 stroke for longevity by the way. . Put an afr gauge on it and you'll see what I'm talking about. Some lean spots on stock ecu fueling.


And your saying a di motor with 200 degrees Fahrenheit higher temps in combustion chamber over an sdi is more reliable?? With no lubrication/cooling to the connecting rods,wrist pin, wrist pin bearing . Heat/ friction is a killer on 2 strokes and the di motor is prone to it.
To say one 2 stroke is more reliable then another is a complete joke. Around here more di motors are down vs the sdi Polaris.
I run Polaris too but see more failures in the di motors from 3000 miles up vs the newer 800 ho. Now that 2 seasons have past for the 800 ho. We're seeing huge milers, 5-6 and 7000 miles on Ontario and Quebec sleds . And the pistons and cylinder are still within tolerances. That's a good thing.although there are failures. Not as many in the 800 ho vs pre 2013 cfi 800's. Does that mean the newer 800 ho is better then another 800 for reliably??
No.
They all break.
Playing the one is better the the other is getting old. It's a 2 stroke.
Heat and friction kill all makes




First off, I didn't use the word "aligned" as it pertains to injectors. I stated injector placement, IE: the location of the injector on the motor. And this is proven by how soon, quickly, and prematurely these injectors develop carbon deposits and begin to disrupt fuel flow, patterns, etc.


BRP figured this out how long ago?

And regardless of what the combustion temps are of the ETEC, or what it is "prone" to, they are living at a much better rate than Polaris.


2nd) Blaming the EPA for Polaris' shortcoming's is lame. They won't even do that. Everybody plays in the same sandbox. BRP and Arctic Cat both have to build a motor that is compliant. BRP is not skirting CAFE's either.

I hear what you're saying. But the 800HO has only 1 season in the mountains. It's just not possible for Flatlanders to put these motors through the "loads" and in extreme conditions that mountain riders do. I'm glad you are seeing the mileage out of this motor. But I will wait for another season. What I have personally seen in the local area from people I know and speak with, ride with etc. is not good. And I'm not even considering the track, driver, runnability issues (injectors) loss of RPM's.

Bottom line is Polaris needs to design and build a new 800cc motor from the ground up. No more overbores thrown on top of a 440/600 powerplant in a mad rush (2008) to compete with the others.
 
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