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The 900 ACE NA is No-Compromise Enthusiast’s Motor


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#31 ncapster

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Posted 22 May 2021 - 09:28 AM

Doo would sell a lot more 4-strokes if they ditched the ITC throttle. Doo obviously knows it’s a problem, hence the new “hybrid” throttle on the Turbo R. Yes you can get used to it but I still don’t like it. The throttle response on my 1200 was so much better. I know I’m comparing apples to oranges here (600 ACE Vs 1200) but I didn’t like the ITC on the 160 HP Turbo either.


#32 razer

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Posted 22 May 2021 - 09:47 AM

It would be a step backwards to ditch the itc

#33 ncapster

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Posted 22 May 2021 - 09:59 AM

Make it an option and let the market decide.


#34 repairman54

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Posted 22 May 2021 - 09:59 AM

900 would be a replacement sled for my wife for sure. She's on a 1200 GSX now and loves it. 900 is not enough ''steam'' for me but that's another story.

No more 2 strokes for me for primary rides, traded my last 2 strokes, 600 SDI sleds, before the rings went for my 1200's. 

It's enough work maintaining the skids and chassis, I do not want to wrench on or worry about motors anymore. 

I like my piston ring compressor and pin removal tools being dusty/dirty. 


Edited by repairman54, 22 May 2021 - 10:00 AM.

John
"Some suffer from insanity, I choose to enjoy it"

Sleds I've had...
'74 Colt 250SS
'76 Pantera 500 FA
'78 TX 440 FA full mod.
'84 Indy 600
'85 Indy 600
'86 Indy 400
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'07 GSX 600 sdi


#35 bar549

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Posted 22 May 2021 - 04:17 PM

Most sleds do not like warmer temps! The 900 N.A. Performs it's best at below O temps, huge difference in performance, set up rich.

 

Bob


My Build: "2016 Blizzard 900 ACE Build & Tune" N.A. - Dyno @ 111 H.P. Click Link for Details <p>https://www.dootalk.com/forums/topic/1435138-2016-blizzard-900-ace-build-tune/

 

:thebee: My Clutch Videos: For the beginner and the seasoned veteran, these are a must see!  

 

#1- E-Drive 2 Primary Disassembly  https://youtu.be/NVEv_owtvkI  #2 - E-Drive 2 Primary Reassemble  https://youtu.be/QRVFdoTPORo  #2.5 - Review  https://youtu.be/olr7Dt8BVA8


#3 - QRS Disassemble  https://youtu.be/AOR4eaXkt_s  #4 - QRS Reassemble  https://youtu.be/g-Ik1e_hK6k  #5 - Wrap up and Setting Secondary Tension  https://youtu.be/ajM23xea_Rs


#36 awful knawful

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Posted 22 May 2021 - 06:26 PM

I find the temp doesn't seem to bother my 900ace.

I got some buds running them. 30k, 25k and 22k

#37 WildSioux

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Posted 22 May 2021 - 07:50 PM

I agree with the OP about the 900 ACE. We have three:. 2017 Grand Touring SE, 2019 Renegade Enduro and a 2021 Renegade Enduro. All bought new off the dealer showroom in that order. I bought the Grand Touring and drove it over 950 miles in two seasons. Bought the 2019 for my wife while I had our daughter in the Grand Touring. Then sold the GT to my dad. The old 2002 Grand Touring 600 mxz did well but it was time for him to upgrade. What better way to sell him a low mile one. That is when I bought the 2021 Enduro. So far I've put the 1+1 seat on (still need to with our daughter). I even put heated seat in it for her and myself something the 2017 Grand Touring has.

As you can see, we do a lot of family trail riding. Ever since we bought the 2017 GT we have been venturing further and further. Before selling the GT to my dad. We did 160 mile trip in one day. My dad and mom on the 2002 GT 600 carb. That was the time we one it was time to upgrade if we were going to be doing those kinds of trips. I let my dad drive the newer GT a lot. Both he and mom said this rides like a Cadillac with the air suspension.

The 900 ace eats up those trails with ease. No need to worry about gas. Fill up before leaving, stop to eat and fill up again. Of course my wife carried the 4 gallon linq tank not for me but for the 2002 GT. Wasn't needed but not knowing how far it is nice to have. The 2002 GT MXZ also had a gasket leaking coolant. Somehow we made it back after dumping what green coolant we had with us.

It is nice not having to worry about that with the 900 ACE. I hope to get a good 20,000-30000 miles on these. Sure they are quiet and I like the noise of the old 2 stroke which we still have some 2002-2002 vintage 600MXZ. I can get my fix there. But for trail riding the 900 can't be beat. Sometimes I wish it had more power and thought I should have bought a 900 turbo. But going on trails by the time you get up to speed you are slowing to turn. Maybe on the lake I could use a turbo. But these 900 motors keep up with the 2002 mxz 600 up to about 70 then they pull away. The rest up to 90 is painful lol. I don't need the speed with a kid on the back. And can't leave the others behind.

The itc throttle is great... Don't change it. It literally sounds and operates like a car although no transmission. It is great for our daughter. Put the green key in and I let her drive by herself on the lake. Or on the trail with grey key and ECO mode and with my help let her drive some. She likes the throttle turned to pull with her finger. I've been looking for a used 900 ace for her when she is older. I should have bought the 2015 GSX with 500 miles on it for $7000. But I had just bought the 21 Enduro. Who knows, with Doo not making a 129 with the 900 ace. She may just get one of our Enduros. Just a little big though and she has a few more years.

Edit:. Forgot to mention. When a 900 ace pulls up behind me. I love the subtle rumble they have. I don't know how else to explain but. RRRRRrrrrrrumble. Like I'm going to hit you but then they stop and idles.

Edited by WildSioux, 22 May 2021 - 07:54 PM.


#38 origYeti

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Posted 22 May 2021 - 09:35 PM

Found a good deal on a 14 900 renegade at end of last season. Never rode a 4 stroke and wanted to try it. Still not sure what I'll think as I only got to put 120 miles on before snow melted. Its definitely fun till 60 but Ive never ridden a sled that was so affected by warmer outside temps. Struggled to hit 80 on the speedo and that was with Bars clutch mods. I ordered a full cudney kit to give it a shot this winter. The smoothness and quiet sure is awesome though, I can definitely see how the ITC is so much of sticking point for a lot of guys. I don't hate it but dont really like it, to me sport mode is the only mode I use, I absolutely cant stand standard or eco. But again only got one weekend of riding out of it. Hoping I really like it this winter.

 

 

Congrats on the new sled Wiexpress.

 

I haven't heard many people complain about iTC on a 900 NA if they have actually driven one for enough time to figure out the calibration. Definitely not unanimous, but seems the vast majority of folks who mile these up are very happy with iTC.

 

I'd appreciate hearing how that cudney kit works out for you.



#39 Wiexpress

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Posted 23 May 2021 - 06:22 AM

Congrats on the new sled Wiexpress.

I haven't heard many people complain about iTC on a 900 NA if they have actually driven one for enough time to figure out the calibration. Definitely not unanimous, but seems the vast majority of folks who mile these up are very happy with iTC.

I'd appreciate hearing how that cudney kit works out for you.


For sure I'll let you know. I will say Bar549s edrive mods really help with clutching. I'm looking forward to actually getting a bunch of miles on this winter. I still can't get over how quiet and smooth they are.

#40 gtsnowmo

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Posted 23 May 2021 - 09:08 AM

Got a 2021 GT 900 NA last year and have a spring checked 2022 GT LE 900 NA for this year. I agree couldn’t be happier to have great power, quiet and hopefully reliability.

For us we don’t go more than 40 mph on local trails and there is no premium gas available by pump so it was a pretty obvious choice.

So much more relaxing to ride than our older Summit 2 stroke.

#41 whirli

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Posted 24 May 2021 - 09:14 AM

I'll always run a 900 in some flavor.  Such a smooth/enjoyable powerplant.  It's hands down the easiest sled to ride on a 220-250 mile day which i find myself doing more/more as time becomes a precious commodity.  

 

ITC throttle?  i'd hate to have this on a 2stroke, but on this 900ace it's absolutely perfect.



#42 GHOSTRIDER

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Posted 24 May 2021 - 10:00 AM

 you do realize it will take 40 to 50 years at 500 miles a season to get 20 to 30 thousand miles



#43 MX-Z Man

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Posted 24 May 2021 - 10:21 AM

I love my 900 ace.

 

With a turbo I love mine too. ;)


The XP was the most fun sled ever made - but I liked my XR more. The 850 takes it to a whole different level. But darn, the 900T is Bad to The Bone! 

No Need to Freeze-buy a set of these! http://www.coldguards.com/


#44 900mac

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Posted 24 May 2021 - 06:40 PM

 you do realize it will take 40 to 50 years at 500 miles a season to get 20 to 30 thousand miles

Put a turbo on it and it will only take 4 to 5 years. :D  :D  :D



#45 Candubrain

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Posted 24 May 2021 - 06:56 PM

2019 Enduro 900 Ace with almost 9,000kms.  I run premium even though its not required as the gas mileage is so good I can justify the extra cost.   Its quiet, plenty of power for the trail riding I do and my friends joke it must be electric because its so quiet.    

 

Having a quiet sled along with a good helmet (BRP O2) allows me to listen to music on my headset while riding.  My longest single day ride was 579kms from Cochrane to Hearst and back in 2020.   I generally don't go out unless I can be for the entire day, anything less is a waste of my time, so comfort and quiet are paramount.

 

The ITC throttle is a non issue for me, it works and I'm happy with the response.   Perhaps if I was riding off trail or in the mountains I would need faster, better response, but for what my sled was designed for its perfect.

 

I intend to keep this sled for a few more years so this summer I'm investing in Elka suspension, (keeping the air ride), Mainway bushings and Dupont sliders


Edited by Candubrain, 25 May 2021 - 10:07 AM.





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