Bro has a MK4 Supra just chillin in the background with a M/T SS tire on it 😅

@JT2JZ

2 ай бұрын

She’s a 10 second 6 speed supra. I have some older vids you can check out if you are into those cars

Update for everyone that is curious. The stator was our problem causing no reverse. Not making correct voltage / lights would start to flicker and stalling when going into reverse! The flickering headlights at idle are probably the biggest sign of a weak stator. Hopefully this helps!

Was looking at one of these for my son, this video scared me straight - thanks.

@JT2JZ

3 ай бұрын

They are cheaper to buy for a reason in my opinion

the metal fix gasket under the cylinder, is there a gasket below and on top of that metal gasket? I only have 1 from dealer with rebuilt

I like that you left the engine in the sled for once. Seems like everybody wants to pull the whole engine out all the time for top end rebuilds. Thanks for the info!

@JT2JZ

2 жыл бұрын

I like taking the path of least resistance! Hopefully the video helped. Remember to drain your coolant before you start!

I just did a video series on my channal ! I sent my cylinders to a shop to get them honed and they said we can risk a hone but we might be doing more bad then good... I then echanged them for new replated cylinders and I am so glad i did ! Started fresh with brand new wiseco pistons ! Honing a Nikasil cylinder is taking a chance... The best thing you can do is ball honing or using a scotchbrite pad. Nice video though !

@JT2JZ

2 жыл бұрын

Ya I think the nikasil layer is extremely thin. Less is definitely more when working or refinishing them. I’ll let you know if it doesn’t work for us this season. Our sled is getting pretty old and rough around the edges. Basically just trying to get one more season out of it without spending a ton of money before upgrading

@doobyboy21

2 жыл бұрын

@@JT2JZ I know what you mean ! It's called living off of borrowed time ! Did it last year ! Only had 100 and 105 compression and only replaced the pistons and rings ! Finished off the season that way ! This year added new parts !

These are good sleds at the end of the day

There is no need for a fix kit on the 2016 and up 800 motors. OEM replacement works just fine. 2016 brand new spec is 125 psi. Also the axys 800 is considered bullet proof for a two-stroke mountain snowmobile engine. Those who blew up or damaged their engine early, more than likely did not use the machine properly. At 10:20 this is a cause for having low compression early. Hope this helps

@JT2JZ

Жыл бұрын

We are still struggling with no reverse. Any other knowledge with loosing reverse?

@zstraps

Жыл бұрын

@@JT2JZ Does it do the quick stall upon pressing the reverse button? Does the reverse light show up on the screen? Does it not work everytime or sometimes?

@JT2JZ

Жыл бұрын

Quick stall if I remember correctly. Happens every time.

The clutch could be the culprit with no reverse, I had that issue last year on my 800 rush. 5k miles.

@JT2JZ

2 жыл бұрын

Primary clutch? What exactly in the clutch wore out if you don’t mind me asking?

@biggie4375

2 жыл бұрын

@@JT2JZ Yes sorry i should have been more specific. Primary clutch first presented an issue like you showed- would die trying to reverse. Shaft overheated from what i was able to tell, no salvaging it or rebuilding just needed to replace.

@JT2JZ

2 жыл бұрын

Good to know. Thanks for the input!

how much compression did it have after the new pistons and rings?

@JT2JZ

2 жыл бұрын

Still haven’t got the chance to break it in and retest unfortunately. It’s been -40c for what seems like a month now. Patiently waiting for the weather to cooperate

120 is still goo if it drops below 100-90 time for new pistons and rings

@JT2JZ

2 жыл бұрын

I believe our actual numbers were 110 and 115.

How long is the sled running after this repair? What is the new compression

@JT2JZ

2 жыл бұрын

Old compression was 110 and 115 if I remember correctly. Never tested it new. Sled hasn’t been ran much. We believe it still needs reeds

Whatever ended up happening with your friend's sled. I am curious to find out how many miles you have on the top end rebuild, on the Pro X Pistons kit. Did you get the reverse issue worked out.

@JT2JZ

4 ай бұрын

The stator was the root cause of no reverse. Not a compression issue. The sled is still running good but unfortunately we haven’t put a lot of kms on it as this winter season has been horrible for snow ( I can still see my lawn ). I’ve never experienced a winter this warm in my entire life. Scary stuff.

@jordanthomas2210

4 ай бұрын

@JT2JZ The weather patterns in the past few years have been getting more and more unpredictable. I am from Wisconsin. We ended up with 50° weather Tornadoes and Large Hail, which destroyed any chances of getting back out. Put on about 250 miles in January.

@JT2JZ

4 ай бұрын

@jordanthomas2210 I live pretty close to revelstoke ( one of the best mountain sledding areas in the world ) and currently there is not enough snow to groom the trails into the alpine. In the past when you had a bad snow year you go to revelstoke and they always have snow no matter what. Pretty heavy drought this year. Im very nervous for summer. They are predicting a bad fire season now without any mountain water run off over the spring. I’ll keep you posted on the sled if we get it out more but it’s not looking promising.. this weekend we are using quads and dirt bikes

@jordanthomas2210

4 ай бұрын

@JT2JZ l definitely see why you would be nervous. I have heard a lot of the same. Ride safe🤘

@JT2JZ

4 ай бұрын

@jordanthomas2210 you as well brother

Did you have any bogging issues I have no reverse either did too end thinking of stator…

@JT2JZ

2 ай бұрын

No bogging issues but my root issue was stator and not compression. I think you are on the right track

How did you get the coolant out of bottom end?

@JT2JZ

2 жыл бұрын

I used lint free paper towel. Using a flat head screwdriver I just pushed the folded up towel into the bottom end and it actually worked pretty good.

What was the compression after the rebuild?

@JT2JZ

Жыл бұрын

The compression wasn’t much different to be honest. Maybe 5psi better if that. We still don’t have reverse so maybe it wasn’t the root cause of all the issues.

120 is spec for the newer axys motors I believe

@JT2JZ

2 жыл бұрын

I thought they were supposed to be 130-140ish new? You may be right though. The sled may have needed reeds more than a top end.

@brodyschmidt9575

2 жыл бұрын

@@JT2JZ I’m pretty sure spec is 120, I know the new CFI motors are a lot lower then normal years!

@JT2JZ

2 жыл бұрын

Thanks for the info man. Reeds will be next on the to do list for sure. Hopefully that will give us back reverse again

@brodyschmidt9575

2 жыл бұрын

@@JT2JZ still got no reverse? What rpm does the sled idle at? Have you done a compression test since the rebuild? Outta curiously what was it?

@JT2JZ

2 жыл бұрын

Haven’t really rode it yet to give the sled a good heat cycle and let the piston rings seat. Hopefully this weekend we will put some more time on it and take it for a good burn As of right now still no reverse.

What brand pistons did you use ?

@JT2JZ

Жыл бұрын

Pro X pistons.

Your spark plug cap in inversed ?

@JT2JZ

Жыл бұрын

I believe it’s normal? Basically a stock sled

I never thought 120 psi was low.

@JT2JZ

Жыл бұрын

It probably isn’t that low on these older Polaris engines. I’m a skidoo guy so I though it was low when it likely wasn’t.

Any updates on this sled ??

@JT2JZ

Жыл бұрын

The sled still runs pretty good. Still doesn’t have reverse though.

The coolant in the bottom end is no good my friend!

@JT2JZ

Жыл бұрын

Ya it took some time to clean that out

@mikepierunek

Жыл бұрын

Bye bye crank your days are numbered

@JT2JZ

Жыл бұрын

She’s still running strong. We got the coolant out before reassembling obviously