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Polaris Pro-RMK Low RPM \\ Please Help!
Рет қаралды 2,360
Күн бұрынWe have been riding this sled for 2 seasons and don't know why it won't reach proper RPM. It has the exact same clutching and miles as the Khaos 850 in the video. Comment below if you have suggestions. Thanks!
Sleds:
2022 Polaris 850 Pro-RMK 165 Slash
2022 Polaris 850 Khaos 165 Slash
#snowmobile #problems #low #rpm
@rrichr2639 Жыл бұрын
I am trying to figure out that background whining sound... the really high pitched sound Track tension? Put it on a lift, remove the belt..spin the secondary by hand to check jackshaft and track Not convinced it's motor
@JasonCaville Жыл бұрын
I think that is the QuickDrive belt. We will check the track tension. Thanks for pointing out that sound 👍
@rrichr2639 Жыл бұрын
@JasonCaville what did you guys figure out
@JasonCaville Жыл бұрын
@@rrichr2639 The dealer found that the exhaust valves weren’t opening all the way. Still need to get it out for a test ride. Hoping that was all it was.
@jeremyjeanson2752 Жыл бұрын
Worth checking your power valve cable, I had that happen on an 850 it broke and had similar symptoms.
@JasonCaville Жыл бұрын
The dealership will be checking this on Monday. Thanks 👍
@xtidnab Жыл бұрын
spark plugs, take them out and try to rotate the ceramic part of the plug from the bolt part of the plug, if it has play in it, then the plug is your culprit...
@JasonCaville Жыл бұрын
Good to know! 👍
@Cookie18877 Жыл бұрын
And also the clutch Weights could be sticking making it slower and weaker.
@JasonCaville Жыл бұрын
That might be it!
@jassonlaquerre675 Жыл бұрын
its most likely still warranty, they have a bunch of recalls, could be the fuel pump thats giving up, or the reeds, or the injectors, or bushings in the clutches, or bearings somewhere, it can be a bunch of things, just by keeping the clutches spot on you take out that in the possible causes. after clutches i"d go see in the tank and then check everything else
@JasonCaville Жыл бұрын
Likely exhaust valves. Will find out soon 👍
@Cookie18877 Жыл бұрын
You probably have a bad fuel pump is when you routinely lose power whether you're climbing a hill or going at high speed. In many cases, lost power is actually a sign of another problem such as an engine issue or a pinched fuel line.
@JasonCaville Жыл бұрын
That’s what the dealer thinks it might be. Waiting to find out.
@Cookie18877 Жыл бұрын
Keep me updated on it
@davidrowley8251 Жыл бұрын
The MY21up Polaris Patriot 650, 850, Boost and 9R have a fuel temperature and pressure sensor. If there was a fuel pressure problem, a Diagnostic Trouble Code would have been recorded and displayed. A fault with the muffler EGT sensor (which is in an aftermarket muffler), or the pipe EGT sensor, could be causing this derating of power or fade. A fault with the VES system could be the cause as well.
@JasonCaville Жыл бұрын
Thanks, David 👍
@kenchiison4570 Жыл бұрын
You just snowchecked 2 more of these. Hopefully you'll have it figured out this time next year.
@JasonCaville Жыл бұрын
I settled on one for next year. Stay tuned…👍
@user-wy8iy8by4t 6 ай бұрын
Any update on the issue? I’m having the exact problem and sled is in the shop
@JasonCaville 6 ай бұрын
Have only had the sled out for 2 rides this season. Hoping to test out a new belt and the stock silencer. We might end up dropping a couple grams on the weights in the primary.
@davespargo5944 5 ай бұрын
@@JasonCaville, Hey bud....I'm in the middle of a low RPM issue my self. 2018 PRO RMK 800/155. Out riding the other day and the old girl fell flat at 6200 RPM (earlier in the day, she would snap right to 8150 with no hesitation). Scary part was that I was alone and almost 30 miles from the trailhead where my truck was. Belt was good on adjustment and I swapped plugs which picked up my RPMs by almost 200 bringing me up to a runnable 6400. Still started ok , reverse was no problem either. Idle was smooth and normal, and no funny sounds. Dropped at shop and waiting on word. Hope it is something simple (reeds, fuel sock, EV, or stuck weight on primary). Spring looked ok on primary, and new bushings back in November. Fingers crossed on this one. I'll keep you in the loop on this.
@JasonCaville 5 ай бұрын
@@davespargo5944 This sled needed the exhaust valves adjusted and a fresh belt. Ran great on the last ride. First time in 2 years!
@davespargo5944 5 ай бұрын
@@JasonCaville, Hey Bud...well, I got the call....They couldn't get the exhaust vlvs to cooperate with the computer, so they pulled them out to dig deeper. Turns out a nut was busted off, and when they looked inside, a chunk of piston was missing. Next step, open her up. Well, pin missing from ring groove, which in turn let the ring spin till the gap hit the EV and lost a chunk of that also. I guess the Good Lord liked me enough that day to let me make it over 2 mtn passes on my way back to the truck, and actually make it to the truck under it's own power. Go figure, busted ring, busted piston, and busted EV, and she ran me to where I needed to be in a timely fashion. Well, you know this ain't gonna be cheap. I chose to add in a new crank just because of the mileage and a good reason to replace all the bearings that touched the crank. 6 years and 5,700miles was a good run.
@JasonCaville 5 ай бұрын
@davespargo5944 Yikes!Had you done a top end on the sled before?
@todddirks3676 7 ай бұрын
Need to put a clutch kit on it so when u go to higher elevations you can lower the weights.
@JasonCaville 7 ай бұрын
We might have to. The strange thing was I had an 850 Khaos with the same clutching and it worked great.
@benoitv.5309 Жыл бұрын
Did he change the bars on it? If you change your bar height you need to readjust the throttle cable or else you might be at 80% throttle. Other than that put 91 non ethanol (not even 10%)and check the belt. I heard some aftermarkets can affect the rpms but obviously wrong belt tension can affect too. Spark plugs?!?Theses things sound obvious but it happens.
@JasonCaville Жыл бұрын
Good idea about the bar height, but it hasn't been changed. We try to use non-ethanol but it's getting tough to find in Southern Alberta. Thanks for the suggestions, we'll be checking everything
@dylantaylor6269 Жыл бұрын
I had the exact sale thing happen to my 850 Khaos Slash maxed at 71-7200 rpm. Required an exhaust valve reflash. Took 30minutes at my dealer.
@JasonCaville Жыл бұрын
Thanks 👍
@backcountrysteve7704 Жыл бұрын
Belt deflection and tighten the track
@LapplandFreeRider Жыл бұрын
TPS (throttle position sensor)
@Sleddingislife Жыл бұрын
check for broken plugs…muskoka free rider vids have shown all kinds of different problems this year. he was changing a couple plugs per ride that cracked the ceramic. reeds were a problem on one day and the power was down similar to your friends. i doubt a belt would be causing this issue at 500 miles might pick up a couple hundred rpm but not 900-1000. IMO back to dealer??
@JasonCaville Жыл бұрын
We thought it might be reeds too. Hopefully hear back from the dealership soon
@scottstreule5630 Жыл бұрын
Exhaust Valve Reflash from a digital wrench should fix this.
@JasonCaville Жыл бұрын
Had that done after the brake reflash but might need it gain. 👍
@gregoryh4601 Жыл бұрын
Check Plugs to see what they Look like? the reeds could be shot.check exhaust to see if Plug out? Try high Octane fuel
@trippisenberger9104 Жыл бұрын
You might not have enough compression in a position check your compression.
@JasonCaville Жыл бұрын
Going to take a look at the exhaust valves first. Will have to check that too!
@shauncalladine Жыл бұрын
Was gonna say for sure try a new belt first, how was the belt deflection? Possible clutch spring broke maybe?
@JasonCaville Жыл бұрын
Belt deflection was set properly. We should’ve just thrown the spare belt to see if it made a difference. We checked the clutch spring and it looked OK.
@user-yq6dj9jx5l 7 ай бұрын
Did you ever figure this out? I've a 2022 Khaos 850 that is doing exactly this.
@JasonCaville 7 ай бұрын
One of the exhaust valves wasn't working properly. We put a new belt on and that helped a bit too. Still not revving properly. We're going to check the weights and clean up the clutch sheaves and see how it does. Might be a broken reed.
@christinecaville8539 Жыл бұрын
Just curious, Did you have your sled full throttle as well?
@JasonCaville Жыл бұрын
I was full throttle on my sled in the wide-open areas, but not in the trees. It has a lot of power.
@Rickydbaby 10 ай бұрын
Did you ever get it figured out? What was it. I'm curious.
@JasonCaville 10 ай бұрын
The tech that worked on it noticed the exhaust valves weren’t opening properly. I believe he replaced the exhaust valve springs. We haven’t had the sled back on the snow to test it out. Soon I hope!
@Rickydbaby 10 ай бұрын
@@JasonCavilleawesome. Keep us updated. I have a 22 matryx pro rmk. Sled rips but only has about 300 miles so far no issues other than some weird intermittent low end hesitation/stumble. Fingers crossed.
@23cummins68rfe Жыл бұрын
Possible reeds or belt ? Mabey plugs to , how many hours on that sled ?
@JasonCaville Жыл бұрын
Will check all those. Around 50 hours.
@bigdirtyadventures9830 Жыл бұрын
I'd start with ev valves check the cable. If everything checks out stop at your dealer and get a ev re learn
@JasonCaville Жыл бұрын
Thanks 👍
@jaydowell8165 Жыл бұрын
Clutch issue
@JasonCaville Жыл бұрын
Looks like the exhaust valves weren’t opening all the way. We’ll know for sure once we can get out for a ride on it. Hopefully soon!
@gregbradnam14 Жыл бұрын
I've had 2 brand new 2022 vr1 850 and 2 blown motors. 36 fouled plugs. I'm in an argument to get money back. Too rich . Couldn't get power valves out on last one with 1000 miles.. Polaris has problems they won't admit to..
@JasonCaville Жыл бұрын
The exhaust valves might be what’s causing the low rpm. Will find out soon. Sorry to hear about your sleds!
@Hfamjam Жыл бұрын
It’s a Polaris 😘
@JasonCaville Жыл бұрын
It is. 🫣
@milpertitchalot6432 Жыл бұрын
V.E.S not opening?
@JasonCaville Жыл бұрын
I think this is the problem. Feels like clutching though
@tractorpowerkaelin2400 Жыл бұрын
Try a brand new belt!! I had the same issue and i have to change belts every 500miles since im hard on the throttle at all times.. polaris belts dont like full throttle abuse for high number of miles
@JasonCaville Жыл бұрын
Will do! Hopefully get it back next week.
@tractorpowerkaelin2400 Жыл бұрын
@@JasonCaville let me know the out come of this issue!
@tractorpowerkaelin2400 Жыл бұрын
Us
@JasonCaville Жыл бұрын
Will do
@micahgitlewski-id6vj Жыл бұрын
Cylinders?
@JasonCaville Жыл бұрын
Sounds like it might be the exhaust valves. Hopefully get it back soon!
@fredriklindner6063 Жыл бұрын
Brakes dragging
@JasonCaville Жыл бұрын
That was happening last year and the sled had a whole new brake system installed. We checked the pads and they had play when not pulling the brake lever.
@jodypierson3137 Жыл бұрын
My 23 850 runs great so far 550 miles , I treat the red river like it’s my personal race track, 90 plus mph and a lot of hard on off throttle didn’t really start getting after it until about 200 miles
@MrCoda47 Жыл бұрын
This is the type of stuff why I always buy doo!! As much as Polaris handles really well up in the trees and stuff, they just don't stand up to the test of time if they did I probably would've bought one by now.
@JasonCaville Жыл бұрын
Too many issues for sure. Ski-doo are definitely top notch quality
@jeremiahjohnson6971 Жыл бұрын
It's a polaris... I know this cuz I have the same sled but a khaos....
@JasonCaville Жыл бұрын
I’ve had pretty good luck with Polaris. This sled has been a lemon though
@isaiah6449 Жыл бұрын
Could be clutching
@yukon2159 Жыл бұрын
2 strokes are a pain in the ass......unreliable.....finicky......not durable....four cycle is the way to go now...thankfully they have evolved...good luck brother hope you fix it!
@JasonCaville Жыл бұрын
Might be the exhaust valves. Will know soon! Thanks
@Below_Average_Nerd Жыл бұрын
first problem is its a polaris.
@JasonCaville Жыл бұрын
It might be the second too.
@1984TarpeN Жыл бұрын
I hate to say it, But polaris is shit :S I bought my 2021 khaos and it had problem from day 1 18 plugs on 800 km every singel coldstart one or two broke... everyone was like you need to let the sled get warm.. yeah i know but the fucking shitty sled died after 15-45sec ideling. And polaris dont get better, we all can see the sled broke down all the time. plugs, bogs, clutches, pease of garbage hope you get it fixed :)
@JasonCaville Жыл бұрын
I’ve had good luck, but my buddy has had two lemons in a row!!
@user-wy8iy8by4t 6 ай бұрын
Any update on the issue? I’m having the exact problem and sled is in the shop
@JasonCaville 6 ай бұрын
We think it’s a combination of things. The exhaust valves were fixed. We’re going to try a new belt and the stock muffler next ride. Haven’t been able to get the sled out much this season
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