POWDERSLUT
Active VIP Member
frank i had that happen to me last yr,,my guess is ur top bearing is shot and heated up the sprocket sleeve,,hows the race on ur secondary look where it sits in the bearing? kevin has got a new steel sleeve out now..
going to the three inch 174 on the 880
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fredw
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I went threw a few of them as well, they only lasted around 600 miles the first version, doing his r and d again
POWDERSLUT
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im on the 4th version of top sprockets,1st was a one peice all aluminum with no shoulder, then came out with the add a shoulder,3rd was the 3 piece sprocket with the all aluminum sleeve,now im using the steel sleeve its been holding up good..hope this is the remedy.
FranktheTank
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Thanks man, yeah mine was the red and black one. I could spend hours talkiing to those two guys. Everytime I talk to them I realize how little I actually know
Yeah could of been the top chaincase bearing but I did replace it this fall. I had an early version of the belt drive and all has been awesome for the last 3 years I have had it. First issue so Im sure all is good with that steel sleeve.
POWDERSLUT
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i have one of the first 10 also,the steel sleeve was an upgrade made this yr
kneebar
Active member
Hey Frank, how's that cold air intake working for you? Thinking about doing it also.
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fredw
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well found a place that sells the 1120cm mitisubushi belt for 100 dollars, ordered two but just seen on their statement that their is 12 coming, anyone needs a belt let me know, save 30 dollars over c3
FranktheTank
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hey had a chance too ride my sled in march with handlebar deep snow and that intake is loud!! you can hear it sucking air like crazy no more bog thats for sure no matter what side I am sidehilling on. I have tried all the intakes out there and this is the first time I am truly happy and know my sled isnt going to bog and stop me from making that climb in deep ridiculous powder. Highly recommended for the $350 they charged me.
FranktheTank
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i got the sled for sale right now. If it dosent sell, might throw in a stage 2 bikeman motor at that track. The motor dosent have much more hp but the torque is higher that should help get that track turning. What miracle does RKT have? Top Secret?
kneebar
Active member
I went to Revelstoke for Yamafest and got my valves done at Sledshed. I am absolutely getting the air intake for next year. Those guys know their stuff! I have an 872 with 174x3 and that engine spins that track really well. I picked up about 8-12 mph track speed over stock 800 with the same track and setup. I just need an extended chaincase to get the snow out better.
FranktheTank
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Pete was trying to talk me into those valves. The raves open up around 4000rpm? with his setup. I always thought the valves opened up at 6800-7000rpm giving all that exhaust to give you your top end. Wouldnt opening them up at 4000 make the top end fall flat on its face? or does it carry through? Whats your track speed at turn out Kneebar? I am sittting at low 40's sometimes high 30's? I take it your running the 7 tooth drivers? chaindrive?
kneebar
Active member
I was dissapointed when I put the bigbore in, I just couldn't get power. It seemed like it was missing any top end power. I took it to sled shed because I thought it was clutching. They set the clutching up for me and it still wouldn't rev past 7000 rpm. Al told me it was absolutely the valves not working properly so he did his mod and my sled ran great. I don't know if the vacuum lines were hooked up wrong or what, but I finally felt the power after his mod was done. And honestly I couldn't tell you what my turnout speed is because I climbed everything that I wanted to climb! The worst track speed I saw was 44 mph and my rpm's dropped to about 7700, that's with the 7 tooth drivers not corrected. The 44 mph was after I crested sugar bowl and it seemed that I just couldn't clear away the snow from my track. The snow was extremely heavy and wet, and it felt like it just wasn't being cleared out. I also climbed two airport chutes, the snow was set up good, but had about 5 big trenches in it from the day before. I couldn't tell you what my track speed was because I was going up so fast and it was too rough to check my speedometer out. I also tried monster chute and was really cooking but hit ice about 2/3's to 3/4's of the way up and had to turn out. Anything in super bowl was from 48 to 53 mph not corrected on my speedo. And I know I can get a little more out of it too. Sorry for the long reply!
kneebar
Active member
I love my 872!
FranktheTank
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yeah i was out riding that weekend for yammifest the snow was insanely wet and heavy. Very happy with Als clutching changes he did for me in March. Made my sled get that track turning a lot faster. The rpms were spot on didnt lose too many on any climbs I tried. Give you credit for the monster chute only saw two guys climb it out of 5. The rest got spit out pretty quick. The ice was ridiculous in that chute, same with the gash it was all iced up to. If I still have this sled next year might try Als valve mod for it see how it helps. I also have a line on a 880 that Cory Micku tuned himself that runs ridiculously well, might consider putting that motor in if I still have the sled next year.
kneebar
Active member
We did all of our sledding on Sunday which was nice and sunny. I think any 180-ish horsepower sled with a good skid and 174 track is more than enough for most guys. I'll be riding this sled for a few years till I outgrow it. That 880 will be a ripper for sure. Can't wait till next year.
FranktheTank
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Outgrow a 174? Hahaha your light years ahead of me
I am thinking an ez ryde underneath is the key. Rode a few xp's xm's with the ez ryde and they are buttery smooth.
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kneebar
Active member
No,no. I meant outgrow the 872! Haha. I'd like a turbo sled some day but this sled is more than enough right now. I have the nextech aluminum monoshock skid and it really keeps the skies down. The only time my skies are in the air is when I'm cresting a climb. Nice looking sled by the way.
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