Axial yeti jr

[Kratonwatch]

Anyone have one of these? I was gifted it and I’ve got grinding in the front end. I’m sure I can fix it but dang this thing seems a pain to work on. Tempted to convert to brushless, but fear the whole car will just fall apart.

It looks cool af but pains me to even think about working on.

 

[Jerold]

It's going to be a bit fiddly for that scale.

You can look at the exploded view and see where to start. It looks like the diff drive outputs are plastic and the ring/pinion (diff) is monkey metal. However, it looks pretty straight forwards to pull apart.
https://www.horizonhobby.com/interactive-exploded-view?pid=AXI90069

 

[Chubaka]

For the last 3 years I've toyed with the idea of one. It would look cool on my trailer behind my 450.

 

[TeknoJ]

I used to have one, I would pull the front apart and check out the diff ( maybe go through the whole thing). When I got mine, I ran it but immediately checked to see if the diffs were greased. I think they were dry…….grease them up a little. I did go brushless with a hobbywing set up on mine and it was wicked fast but I suggest staying brushed it will be easier on the spur gear. Mine started to skip teeth/ grind the spur every time I hit the throttle from a take off or even low speed. I ended up setting the punch way down low And it helped. I would also go through it and check the bearings while you’re in there, and change the shock fluid to something heavier like 27-30 wt. I fiddled with mine a lot and the worst part was setting the pinion to spur mesh since it has that enclosed cover. It was a fun experience, but I sold it to make room for another vehicle.

 

[TeknoJ]

Did you work on it yet?

 

[Kratonwatch]

Did you work on it yet?

Heck no. I’ve got a bigger project I’m working on. Installing Hobbywing combo into Kraton 8s.

The big guy takes precedence

 

[TeknoJ]

Heck no. I’ve got a bigger project I’m working on. Installing Hobbywing combo into Kraton 8s.

The big guy takes precedence

I understand, there are always priorities!

 

[barry]

Anyone have one of these? I was gifted it and I’ve got grinding in the front end. I’m sure I can fix it but dang this thing seems a pain to work on. Tempted to convert to brushless, but fear the whole car will just fall apart.

It looks cool af but pains me to even think about working on.View attachment 176415

Yes i have one.

 

[Kratonwatch]

Yes i have one.

Have you modified it at all? Is it worth it? I’m debating gifting it to someone else

 

[barry]

Yes i have one.

And its brushless. I'm having the same issue. Its skipping or grinding on the motor pinion. I can't figure out how to fix it.

 

[Kratonwatch]

Mine is def brushed as stock. I think I counted like 10-15 screws to get the front end opened up so I said NOPE

https://www.axialadventure.com/by-platform/yeti-jr/

 

[CertifiedMike]

Mine is def brushed as stock. I think I counted like 10-15 screws to get the front end opened up so I said NOPE

https://www.axialadventure.com/by-platform/yeti-jr/

Kids these days!
Maybe its more difficult than it sounds. 15 screws seems pretty doable to me.

 

[Kratonwatch]

Kids these days!
Maybe its more difficult than it sounds. 15 screws seems pretty doable to me.

It doesn’t THAT sound bad when it’s written out you’re right. It’s just how the front end is all tucked away I always say F this I’m working on a different rig

 

[CertifiedMike]

I get it. When you have a few projects to pick from, why pick the struggle?
I have lots to choose from so I try to stick with the project that is the biggest mess... try to dial that back some and usually call it a night.

 

[TeknoJ]

I turned mine into a brushless maniac. It would also skip teeth sometimes. Brushless has too much power. You need low punch settings and low kv motors.

 

[Kratonwatch]

I turned mine into a brushless maniac. It would also skip teeth sometimes. Brushless has too much power. You need low punch settings and low kv motors.

Good to know. Thank you!

 

[barry]

Have you modified it at all? Is it worth it? I’m debating gifting it to someone else

I'm in the midst of going back to brushed. I figured out the problem. The brushless motor does not have a flat side on the motor shaft. When you tighten the set screw the pinion gear has a wobble. That causes the skipping. The stock motor shaft has a flat side and the pinion gear rotates true.