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More yeti motor questions.....


Gurushastry

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Hi everyone, pretty new here havent really posted but i got a few yeti ponderings...all help is appreciated!

Picked up a used yeti rtr a few months back, pretty stock just savox servo and stainless screws and front locker fitted.

Took it out to fowlmead for a decent bash, had a great time, few little breakages but nothing major, anyways stock esc started playing up by sometimes switching on and then not at all, gave up and picked up an exo dirt cheap as it had the older sct castle 3800kv combo and esc (same as the wr8 esc) as it had the 3.2mm shaft ive been running the castle set up in the yeti with a 12t pinion, all seems fine, only been running on 3s with no issues at all aside from knackering the rear diff, (hd gears going in) just wondered if this was all a good idea? Ive got the 16t pinion with an adapter so was going to give that a go at some point, just dont want to knacker anything at this point, mainly running loose surfaces and trailing in the woods, any help or advice is always recommended cos everyone seems to recommend against using it on 3s, 

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3800 is quite a bit higher than the standard can, having said that, the standard can is built more for torque not speed.

I know guys running 3s with a 22t pinion on the stock electrics, so I dare say moving to a 16 should be okay, although I don't know what temps they are running either.

But it would definitely be worth getting yourself a temp gun and just checking it every few minutes on the first run just to be sure.

Also, we have had similar issues too, my Dads often just doesn't turn on, I bought his as new, I also bought mine brand new and had the same problems :lol: Castle Cremations for you unfortunately.

I had a HobbyWing combo in mine at one point, while I was waiting for replacement electrics because it took them over two months to sort, I believe that was a 3400kv motor and I ran it on 3s on a 17t pinion and it was way faster than stock.

Out of interest, what kinds of surfaces are you running it on?

If running in thick grass or something quite hard wearing, I'd stick with the stock can because the torque will be needed.

While you're at it, you might want to consider unlocking the front diff, unless you are crawling with it, it definitely makes it handle better, so just a tip for you, mine was horrible with a lock diff!

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Cheers for the quick reply dude, my dad got a yeti a month ago but stock rtr and im just waiting for that call "it wont switch on" fortunately my wr8 exploits left me with a spare flux esc if that occurs, we're mostly running in the woods so loose with lots of climbing up loose banks and old bmx tracks up fowlmead so mostly loose with the odd grass run on the way there, im planning a kit build very soon so id rather spend on the kit but my own stupidity is currently having its own effect like ordering 1.9 kraits from asiatees cos at the last minute i thought "ah a set of four is cheaper" but they dont do the 2.2 in a set of four so thought ill get some 1.9 proline flat irons (i know i know!) from modelsport to waste 3 hours not being able to fit them (i research like crazy then at the last minute just order the wrong stuff cos im a fool!) Gonna try to get some vids at some point cos i do love the yeti just bit apprehensive cos i will eventually put the stock motor back in it and get the exo running to run against my scbe, rather not destroy everything i currently have, i was going to change the front diff back but ill wait till i get the kit and keep this one as a crawler/beater and then get some better bits for the kit, sensored brushless is a must! 

Love this forum, people are always friendly and helpful to fools like me!

Amazed this hobby is so underground in the uk, its such good fun and more social than youd initially think, it needs to be revived!

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57 minutes ago, Gurushastry said:

Cheers for the quick reply dude, my dad got a yeti a month ago but stock rtr and im just waiting for that call "it wont switch on" fortunately my wr8 exploits left me with a spare flux esc if that occurs, we're mostly running in the woods so loose with lots of climbing up loose banks and old bmx tracks up fowlmead so mostly loose with the odd grass run on the way there, im planning a kit build very soon so id rather spend on the kit but my own stupidity is currently having its own effect like ordering 1.9 kraits from asiatees cos at the last minute i thought "ah a set of four is cheaper" but they dont do the 2.2 in a set of four so thought ill get some 1.9 proline flat irons (i know i know!) from modelsport to waste 3 hours not being able to fit them (i research like crazy then at the last minute just order the wrong stuff cos im a fool!) Gonna try to get some vids at some point cos i do love the yeti just bit apprehensive cos i will eventually put the stock motor back in it and get the exo running to run against my scbe, rather not destroy everything i currently have, i was going to change the front diff back but ill wait till i get the kit and keep this one as a crawler/beater and then get some better bits for the kit, sensored brushless is a must! 

Love this forum, people are always friendly and helpful to fools like me!

Amazed this hobby is so underground in the uk, its such good fun and more social than youd initially think, it needs to be revived!

 

I wouldn't advise 1.9 myself, purely because I tried it, even with tall 1.9s and it wasn't as good as 2.2.

I'd strongly recommend some good firm foams too, they make such a huge difference to handling.

You should be fine on loose stuff, we mostly run in the woods too and quarries, but as I say, it's definitely worth investing in a cheap IR temp gun, doesn't have to be within 0.1F accurate, but you'll get an idea of the temps and go from there, especially if your Dad has one as well :) 

If you like how it is now, you should be fine though, with regards to diff, I just thought mine handled like an absolute turd, it was an accident why I ended up with a locked front diff though, they supplied it in the kit (they shouldn't have done) so I assumed being Axial it was meant to go in lol, ended up selling that kit Yeti because of how bad it was, but bought a RTR when I got a good offer from a shop and mine handles like a dream now.

I will say though the Yeti is one of the most fun RCs I've owned and that's a hell of a lot :lol: if you get them in the enviroment they were designed for.

Good to see another father and son RC team too :P 

I think the reason for that is we get so badly shafted in the UK over pricing, everything is sky high and it puts people off!

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To be honest i didnt want to but im going to use the krait wheels on the scbe eventually, just wanted to make use of the kraits or flog them to my crawler buddy who loves the slow, living and learning! 

I gotta admit it shocked me when my dad said he wanted one, hes more into archery but its nice we got something to do together now, the yeti is his first rc and he hasnt had a go on one since my guickdrive midnight pumpkin 30 years ago! Be nice to get some events going like in the us or poland,  i live quite near brooklands rc track but have never been there, love to becone a regular though, we have a little bash spot thats great for the rally cars when we can be bothered to set up the cones and drag my mate out for it, hopefully theres an abandoned motorcross track nearby im going to attempt to repurpose slightly for big yeti jumps so long as the guy who owns it doesnt shoot me trying to get there! Ill post some vids when i find some better spots.

I think the rc companies are a bit confused too, hpi for example kept saying 2017 was their year for change and new stuff, but they still havent really released anything, horizon released a bloody monster truck, for the record i hate traxxas and absolutely despise xmax's! 

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That's quite odd, my Dads into archery, bow and arrow etc...

We have always been quite lucky with places to go, unfortunately, we were warned off our most local quarry which was so damn good with our Yetis, so that's a bit of a no-no now, and the other quarry down where my sister lives has basically been flattened now and is being developed on.

I suppose it's part of the reason we aren't really doing too much RC wise at the moment, hopefully that will change soon though.

There has been problems for a while RC wise, not sure why really, it does seem to be since this public vote though, not just the exchange rate going out of proportion, but also people worried about trading with certain companies that we may not be able to if we ever actually leave the EU.

Shame you aren't a bit closer... 4 Yetis going at it sounds like an absolute hoot!!

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