Whats going on with the Doo 800 H.O. motor. Haven't heard anything postive, after people have ridden them. Everyone is talking like they are not that impressed. My buddy's 800 HO got spank by my others buddys F7. The F7 has a B.M. single pipe and clutch kit and I know the 800HO has not burned throught the break in chip yet but WTF :cussing: :cussing: :cussing: :cussing: Please some post some positve 800 HO comments. Hopefully the doo 800 HO is not another pouch motor. I am not bashing doo, in fact I will not ride anything else. I guess I am looking for some positive comments. :cussing: :cussing: :cussing:

Sorry, there are no positive comments to be had. Skidoo should be ashamed with all their series lll motors, especially the 800.

In my opinion, and it is only an opinion, but Ski-Doo has been is trouble since the series 3 motors came out. They eat rings, but Ski-Doo states this is only "internet hype" and there are only isolated cases. Yeah right, only the people that know how to tune a sled are aware of this because they pay attention as to how there sled runs on top end. If your rings are burnt, your sled will still run and perform, but not on the top side or mid range pull. So, I wonder why do we still continue to purchase these sleds? If Ski-Doo doesn't change their motors soon, I will be riding a Polaris or Artic Cat. I am very brand loyal, but not anymore. The Cats at the Old Forge dominated this year. Polaris did real well also. I ride in Canada with a group of guys that have Polaris sleds and I get ribbed all the time about Ski-Doo. Not anymore. Not bashing any company or person here, just "stating the facts". Piece out.

Wait for the breakin then have them line up again. My boss has three dpm sleds and said in two of the three he has noticed a big difference. The other one has not been riddin yet. The f7 is piped and clutched so it will be a close race, get the 800 piped and clutched and it wil win.

Mikadoo,

I guess that we should be glad that we are still riding our sleds with the so called "out dated technology".

I just remember everyone saying the 800 HO would be the best thing since cotton candy. I guess not, after they have actually ridden them. I guess I won't be dumping the old mod CK3 yet.

Don't line power and speed is what sells sleds. I know people want trail sleds, but most still want them fast.

Everyone keeps waiting for the chip to burn out... Come on..
I have owned 3 sleds with chips and have never noticed any more power.
I also read somewhere that the power is only down 1% or so
with the breakin time. That can't be noticable when the chip kicks in.

The doo 800 motor is down on power - period. Its less than 130
hp and unless you spend some bucks you won't be competing with
the F7, ZR 900, and now maybe not even the F6!!

I can't even figure out why doo called this engine an 800 HO.
From everything that I've read and heard, its no better than the
old 800's.

The only good thing I've noticed is the 10tooth drivers. I do think
they add a bit to performance.

Now the REV chassis makes up for ALL shortcomings.

That's my opinion.

It's running in the Vipers HP range then correct?

I reced nsra this year grass draging and all the rev 6 and 8's were going through rings on my buddies sled he went through two sets himself and couldn't get and he finally found some after calling 46 ski-doo dealers,and the factory was out of them even the factory racers couldn't get them so yes alot of people wen't through them.but the engines do go

OMG.......I put close to 5000 miles on my rev 800 last year.......close to 7000 on my 01 800x......i ride alot of trails at high speeds and i have no complaints I have put 125miles on my 04 800HO and so far it is just as i expected it to be. Good power good torque it will still pull my buddies 03 Edge X 800 if i need it to.....but for the riding I do the 800 is right in the money. Down on POwer????B###S###....ring problems????? I don't think so........This is all early season BS lets wait till it snows and go have some fun......If you want to lake race go buy a triple...slam it to the ice throw some gears in it and blow your brains out.....been there done that.

Ring problems? YES. :D renegade8x, ride your sled in the trails at 6500-7200 rpms and see what happens. I wouldn't recommend it to prove a point though. :D

Personally I too have had no problems with the series 3 motors had 2 800's and now have a 600 ho sdi,(this one too early to say) but the 800's had lots of hard miles with no problems, compression was allways good. Never left me stranded.

But the same can't be said about the triples I've owned, the 700 triple had crank issues and so did the 809, both I had and both went through a couple of cranks. My 809 wasn't corrected until I got a adrian bernard crank with steel cage bearings. I'm just glad I have a stand up dealer that got me through alot of problems. By pushing alot of stuff through on warranty that he didn't really have too.
I know a few guy's that have problems with the series 3 800 twins, and all I can say is it didn't matter what these guy's had they would have had a problem with it.

Originally posted by kid rocker@Dec 15 2003, 12:29 AM
Ring problems? YES. :D renegade8x, ride your sled in the trails at 6500-7200 rpms and see what happens. I wouldn't recommend it to prove a point though. :D
Well i would say that of the many miles I have put on the last 2 800's i have run these RPM's at trail speeds many many times and alas no problems. I'm not saying that some people have not had problems i'm just stating that I haven't. I would be the first one to jump ship to another manufacturer if I had issues but i have not had any. Of the many people that i know that have Ski-doos I haven't heard of any ring issues. The internet is the only place i have heard of these problems so far. The original post here wanted to here some positive experiences and I am just giving mine.

renegadex and kennypope, I am glad you guys have had no problems. The original post did ask for positive posts about the 800 HO, so far there have been (2) two positive posts. Not a good batting average, but the season has just started. Hope there are more positive posts to come. Good luck with yours. I know Mr. Bill Cudney has pistons and rings for the 800' s now. He knows his stuff also. Idooski on this forum knows the technical reason for the ring issue, hopefully he will respond. Enough said. :D

Took my 800 HO Renegade out with a couple of mild clutching changes and was able to get it to run a lot better from stock. They are a different motor from 03 and won't be able to pull the same clutching in the same spots. Do not try and lug this motor, it will not work. I also race on the grass and have gone through numerous sets of rings but I attribute most of that to sucking in a lot of dirt and also taking a motor that is hot and cooling it down in less than 10secs. We took our 800HO out of the box this year lowered it down and geared it down and it ran a 5.82 with stock clutching. This sled has potential, give it a chance.

Originally posted by kennypope@Dec 15 2003, 12:56 AM


But the same can't be said about the triples I've owned, the 700 triple had crank issues and so did the 809, both I had and both went through a couple of cranks. My 809 wasn't corrected until I got a adrian bernard crank with steel cage bearings.
First year 700 triples were a PTO failure waiting to happen. 98"s had a few and 99-00 had none.
The series III engine has been out since I think Jan of 00. To date the same problems still exist! I know a LOT and I mean a LOT of guys with seriesIII sleds and not "ONE" has been trouble free. The main failure is rings, piston skirts and reeds de-laminating.
The 809 is about as sweet a running trouble free 2 stroke you'll find. The only reason you could'nt keep bearings in your 809 is because it was clutched wrong and the heat from all the slipping was burning out the plastic cages.
I could tell you who sells wannabe clutch kits that do this but I wont mention any names.

Well put Mikadoo.

My dad has an 800h.o. and its modded a little but it flies. He lined up with a heavy modded 900 arctic cat and stayed just ahead of it the whole way. I am impressed with it personally.

impstk800,

Any chance you'd be willing to share some of those "mild" clutch secrets??

Thanks

My wife and I both own 2003 Summit 800 HO 151 track and the power is great and speed is up top. I have taken the Artic Cat 900 in races and I am very pleased with my sleds. It goes to the TOP.....I ride 90 percent in the Mountains hill climbing with no problems... :D

I got a new renegade X 800ho with a 1in. 3/4 track and i also have over 400miles put on it yet. before my break-in chip was done i brough it up to 113mph. after the break-in chip was done i have noticed a big difference and it pulls a lots. so maybe u guys didn't breaking ur sled good or that u got a lemon. on power it has plenty i can go up very steep hill with both skies straigh up in the air and i can also stop in the middle of it and start going up again. so u wanted a positive comment on the 800ho heres one i wouldn't trade my sled for any other even if it would be given that thins has balls. my buddy has a f-7 and we r pretty close on top end and he has a 1 in. track.

Couple buddies got some revs 03 800's and they aint had a problem yet.. I think any of u guys that are havin problems with the rings or whatever are not taking care of your sleds.. Cause many people that have revs are very happy with tehre sled and they aint had problems..
so..when ya'll stop burning on the series 3 engines and skidoo..take care of ur sled and u'll see the real potential of the rotax power houses.

I just wish that we would get some snow so I can try mine out!

Hey Guys,

Just a question regarding "chip burning". A couple of my riding buddies have bought '04 REV 800 HO's. They've both got some miles on them so far this year - but are eagerly awaiting for the chips to "burn in".

What the hell are they talking about?? This is a carbed engine - as far as I know (and correct me if I'm wrong) there's no smarts on the engine. What is this supposed chip controlling?? I fully understand there being a prescribed 'break-in' period with a SDI engine - this engine has some electronic controls and thus a 'chip'. Can someone clarify this??

I think maybe when one of them had an RX-1 fly past him, he's digging for excuses!! :lol: Yeah - the chip needs to burn in, that's it.

It most certainly does have some smarts, MPEM(computer).

Originally posted by mxzadr800@Dec 25 2003, 03:44 PM
It most certainly does have some smarts, MPEM(computer).
Yes, but what does the MPEM have to do with engine management?? Is it not just a theft-deterent system? I owned a 2000 MXZ w/MPEM, I don't remember seeing any electronics anywhere on the engine (sensors/solenoids/proportional valves, etc....). I am confused by this "burn-in" period on a carbed engine......

I believe the MPEM stands for Multi Purpose Electronic Module. The theft deterent ability is just a bonus that skidoo gave us. The MPEM controls timing, among other things. The "chip" burn out is a real thing. MPEM retards the timing until after break in. How long this takes is up for discusion some say 6 hours some say 10 hours........guess it doesn't mater how long just maters that there is a controlled break in from the factory. How much change that will occur at the burn in time is also up for discusion maby 4-5hp more after "burn in"?

Thanks renegade8x, that seems to make more sense....

Yes, Renegade8X is correct.

The computer retards the timing by 3 degrees. After 9-10 hours of operation the timing resets to proper setting. Until the this time the engine is running "fat" to compensate for anyone abusing the engine during break-in. It all depends when the chip releases, I have heard some people say that if you are squeezing it when it burns out you notice the extra pull.

RTC800HO.

Originally posted by RTC800HO@Dec 26 2003, 10:37 AM


The computer retards the timing by 3 degrees.
You may be right, I dont know but I do know that 3 degrees aint squat!
Now 10-15 degrees might show a little improvement. I bumped my Formulalll up from .076 to .102 BTDC but that was also with the addition of triple pipes.
Apples for Apples it might burn down.