Fantastic - I'm looking at a Indy Adventure with the S4 for my wife and son to ride and I was curious on how it'll handle.

 

There's some crazy deals on these in Canada. Saw a 2023 brand new posted for $12,700.

 

Holy crap, with conversion that's DIRT cheap.

 

Talking to local dealer last year at this time, they had sold one, had another on show floor. I asked the parts guy if they sold any, he said 1. He then said, really surprised, the guy is a really good customer and is in here all the time, he said on decent conditions, it went 85 on speedo. That's stone stock on snow. Probably could squeeze 90 out of one in the right scenario. Probably go 75-80 anytime. That's not bad.

 

I think it's CAD because that sled should only be around $14k USD. The CAD MSRP seems to be better than US MSRP though, considering the exchange rate.

 

Under 10k for a new sled - wow

 

Curious if anyone has had to do an oil and filter change on the S4 yet? Easy, accessible or more a PITA to do? Also, probably need a service manual but curious what the OEM recommendation is for adjusting the valve train and if that service is a PITA?

 

 

Polaris wants the transmission oil changed after the first 500 miles.

After that...

Every 2,000 miles, replace the brake fluid, change spark plugs.

Every 4,000 miles,
. replace Engine oil and filter
.. Remove left side panel, drive belt and both clutches
.. Remove drain plug from oil reservoir, drain, reinstall
.. Attach drain hose to filter adapter and open drain spigot,
.. Loosen oil filter, oil will drain from hose
.. Access drain plug on crankcase bottom thru hole in bulkhead
.. drain crankcase, reinstall drain plug and new washer, 13 ft. lb.
.. Remove filter, clean sealing surface, lubricate O-ring on new filter
.. Install filter by hand until contact, then 3/4 of a turn more
.. Remove drain hose from filter adapter
.. Fill oil reservoir with 4 quarts of Full Synthetic 0W-50
.. Start engine, check for leaks, stop engine, check oil level, top off
.. Reinstall both clutches and drive belt
.. Reinstall Left side panel

. Replace Transmission oil
. Check Valve Clearances and adjust if necessary

Every 5 years, Replace extended Life Coolant

 

Polaris wants the transmission oil changed after the first 500 miles.

After that...

Every 2,000 miles, replace the brake fluid, change spark plugs.

Every 4,000 miles,
. replace Engine oil and filter
.. Remove left side panel, drive belt and both clutches
.. Remove drain plug from oil reservoir, drain, reinstall
.. Attach drain hose to filter adapter and open drain spigot,
.. Loosen oil filter, oil will drain from hose
.. Access drain plug on crankcase bottom thru hole in bulkhead
.. drain crankcase, reinstall drain plug and new washer, 13 ft. lb.
.. Remove filter, clean sealing surface, lubricate O-ring on new filter
.. Install filter by hand until contact, then 3/4 of a turn more
.. Remove drain hose from filter adapter
.. Fill oil reservoir with 4 quarts of Full Synthetic 0W-50
.. Start engine, check for leaks, stop engine, check oil level, top off
.. Reinstall both clutches and drive belt
.. Reinstall Left side panel

. Replace Transmission oil
. Check Valve Clearances and adjust if necessary

Every 5 years, Replace extended Life Coolant

Soooo....about 8 beers...

 

Thanks for the review. We are trying to decide between the Indy Adventure 4S and the Titan and was worried that the Indy wouldn't handle off trail too well. Any thoughts on how it will handle with 2 people on it off trail?

 

I spent a day on the adventure S4 and Titan S4. I wouldn't do any off trail 2 up with the Adventure. The adventure is just an XC with a extra seat.

The Titan will go just about anywhere you want with the wide long track. Very capable machine and not to bad on trail. If I lived remote somewhere a Titan would be an awesome machine for work and play.

 

I spent a day on the adventure S4 and Titan S4. I wouldn't do any off trail 2 up with the Adventure. The adventure is just an XC with a extra seat.

The Titan will go just about anywhere you want with the wide long track. Very capable machine and not to bad on trail. If I lived remote somewhere a Titan would be an awesome machine for work and play.

Thanks, I appreciate the reply. How's the Titan ride? How does it steer compared to the Adventure? Wondering if the Titan takes more effort to turn? I need light steering effort. Thanks

 

Titan is a tank, but like an Abrams! I think it's better balanced front to rear. It will tractor through just about anything. It rides well, it got plenty of torque also. It is purpose built and does an excellent job at that.

You can notice the weight of the four stroke on the skis with the adventure, but it turns very well.
Heavier than the same two stroke, but this aids in steering. The sled stays flat in the corners. It's not as playful as a similar two stroke, but that's to be expected.

 

Titan is a tank, but like an Abrams! I think it's better balanced front to rear. It will tractor through just about anything. It rides well, it got plenty of torque also. It is purpose built and does an excellent job at that.

You can notice the weight of the four stroke on the skis with the adventure, but it turns very well.
Heavier than the same two stroke, but this aids in steering. The sled stays flat in the corners. It's not as playful as a similar two stroke, but that's to be expected.

Thanks. What's the chance of Polaris putting a turbo on the 4S this year? We ride from 8500-13000 ft elevation so the extra power would be helpful. Not sure I want to wait one more year but at the same time really don't want to buy a SkiDoo Expedition SE because all of my sxs's are Polaris

 

I personally don’t think the 4s was ever designed to be a high performance snowmobile engine. It is a very heavy engine. I’d like to see them come out with a 4 stroke turbo, but to compete with the doo it’s going to have to be substantially lighter than what the 4s is now, and im sure Polaris knows and understands that.

 

Polaris has had 4 stroke turbos in their SxS's for years. I understand this engine came from the SxS line up. Not sure which engine it is, and if the SxS version has a turbo or not. There is room under the hood for a turbo..

How much lighter is the Ski Doo Turbo engine?

 

I know about the sxs engines. I wanna say the weights between a s4 137 and the 900r was around 80 pounds, dont quote me on that lol. Add a turbo and the stuff that goes with it and it increases. 80 pounds in a 1800 pound s x s isn't as big of a deal as it is on a 5-600 pound snowmobile. I just really don't think Polaris designed these sleds to be performance machines. More for entry level riders, fleet rentals, utility applications etc... And, I'm not sure how the emissions credits work anymore, but having some 4 strokes in the fleet may help them with that as well.

 

Since Ski Doo has the turbo option for their Expedition it's in Polaris's best interest to offer a turbo. Get that 95 hp 4S at the elevations where we ride. At 12000 feet I would be at around 60 hp. The Titan weighs around 700 lbs, 60 hp sounds like its way underpowered especially since you got a 20" track to move.

 

Wouldn't be the first time I was wrong haha. And safe bet it won't be the last😂

 

Great review, very informative.

 

In today’s world, bolting a turbo on it should be relatively easy. Doesn’t seem much extra weight would be added outside what the turbo adds. What else is needed… some duct work, bov , intercooler?

 

I spent a day on the adventure S4 and Titan S4. I wouldn't do any off trail 2 up with the Adventure. The adventure is just an XC with a extra seat.

Over here in scandinavia, the distributor got Polaris to build some sleds to their spec, to me the "Nordic Pro" looks like a cross between a SBA and a Voyageur. Which should give it quite decent off-trail capabilities IMO

One of the biggest rental outfits in town ditched their yamahas and went for the Nordic Pro S4. From what I hear, working good so far.
I also was able to take one out for a spin last year, I liked it and I'd say the engine feels much more exciting to drive than the other N/A 4 stroke twins I've ridden.

Thanks, I appreciate the reply. How's the Titan ride? How does it steer compared to the Adventure? Wondering if the Titan takes more effort to turn? I need light steering effort. Thanks

Havent ridden the Titan S4 yet, but the titan 800 steers pretty easy. And I recall I saw some test video last year where the Titan S4 was able to turn tighter than a 137" sled

 

Has a pile of torque and pulls really well up to about 65 mph, then slowly keeps accelerating. Never topped it out but think 75-80 mph will be where it sits.

Thank you for your review.

Power sounds similar to the Ski-Doo XS ACE 900 N/A. The one (ACE 900) I rode was not bad off trail, very torquey, but signed off around 55 MPH then it was a slow crawl up to maybe 80 MPH.

 

Anyone have any experience with the 129" version?

 

Hey, I have a 2024 Indy xc S4 129 and it works very well. On the first 100 miles seemed to work pretty good up to 77-78 mph. After I got 450 miles it got a lot better. Do to bad conditions it was hard to find decent places for a good top end run. Best I had showing was 83 mph. In eco mode in 50 + mph--standard mode 80 +-- Sport mode 83 + mph-But with a lot more torque and quicker acceleration.
I run a lot of rail beds so you can cruise at 70 to 80 mph. Now with this sled only going to 80-85 mph ?(so-far) your running pretty well wide open. I`m not saying that the sled is bad, But I find it has a pretty wicked bottom to 60-65 mph then lvl`s out. If Polaris would do a tune and take 15% out of bottom and add to top end this would make this sled to as a real keeper. I know when I bought this sled it wasn`t going to a rocket and a big top end. This is just my 2 cents.

 

Trail Bliss: Reviewing the 2023 Polaris ProStar S4 INDY Adventure

Explore the 2023 Polaris ProStar S4 INDY Adventure in our detailed review. Discover why it's a must-have for trail enthusiasts.

sledmagazine.com

 

Polaris has put a turbo on the 4s for testing and validation. it's coming but when? the state of sleds right now, they have to clean the pipe line out first. so it might even be a couple of years or not at all? depends on us getting snow how this is going to go.

 

I wonder how much weight a turbo would add to an already heavy sled. It's too bad the package isn't a little lighter.

Polaris definitely needs a higher HP 4 stroke offering. They are missing out on a lot of market share for high mileage riders in northern Ontario and Quebec..in northern Quebec almost everyone rides 4 stroke doos and winders.

 

Wondering why they did`nt put the 114hp version they got in the RZR line it could be more tempting. that beeing said a lot of 900ace n/a in the trail with same hp. a guy told me that the speedometer are on par with the gps on those s4 so a reel top speed of 80 mph about the same as ski-doo 900ace

 

Not to rag on Polaris, but if you're looking for a 4S with performance today... it's ski-doo. It might be my next and last sled. Not sure if I will like the extra weight, but a 4S is just a lot more dependable then a 2S overall.

 

I have had over 20 years on everything from Yamaha Apex, Polaris liberty, Ski doo Renegade 850, 900 Turbo. I am VERY happy with this sled (2023 Adventure 137 S4)! Smooth, plenty of power, balanced, easy to add real 2up, nice fuel economy! Looks great too... excellent value.