Predator 670cc Yerf Dog Spiderbox 54" Axle Upgrade

In today's video we get the new axle on the 670cc Yerfdog and put the wheel spacers on the front. In the next video we will be taking it for a rip and seeing how these changes make a difference. Don't forget to like, comment and subscribe!
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Red Beard's Garage
P.O. Box 572
Sweetwater, TN 37874
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Check Out Go Power Sports for all your Go kart needs!
goo.gl/OoWVDK
10% Discount Code - red beard
Parts used in this build -
Predator 670cc - goo.gl/decvFA
Engine Plate - goo.gl/2PGURM
Oil Catch Can - goo.gl/M4aWhK
40 Series CVT - goo.gl/NW8uFS
Front Tires - goo.gl/FFNWBG
Rear Tires - goo.gl/C5q7pK
Front Wheel Hubs - goo.gl/1SaZSA
Rear Wheel Hubs -
54” Axle - goo.gl/G1rYfJ
Axle Bearings - goo.gl/2nRTS9
Battery - goo.gl/su4v5Q
4 Point Harness - amzn.to/2BpJmWg
Steering Wheel - goo.gl/CerF4L
Hydraulic Brake Set - goo.gl/d3pheS
Front Shocks - goo.gl/RARzXM
Rear Shocks - goo.gl/jLZauM
Wheel Spacers - amzn.to/2zMtqYv
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Instrumentals by Chuki Beats - / chukimusic
Beginning Song - This Ain't The End Of Me - White Comic
• Video
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Tools used to make this video Possible
Lincoln Welder - amzn.to/2ufsIQX
Welding Gloves - amzn.to/2sYQBg4
Welding Hood - amzn.to/2tlBNvb
Welding Cart - amzn.to/2tlCHb3
Sony Camcorder - amzn.to/2ufAb2k
Mic - amzn.to/2tVk8rn
Screw Extractor Bits - amzn.to/2FvVp2p
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*********Disclaimer*********
Please do not try to re-enact or recreate anything you see in these videos. We are trained professionals. Red Beards Garage does not take any responsibility for injury's created by doing so.

[@philiph.coblentzphotograph3351]

You Are one of the best, you know your stuff. I am 73 and I love to learn something all the time.

[@Fentertainment]

Keep putting in the work man, Your video editing, the builds and deliverance of knowledge is making this channel one of the best ones video by video!

[@RedBeardsGarage]

Thank you man. Hopefully they keep getting better and better

[@JM.Performance]

I can't wait to see the independent suspension on the 670cc Yerf Dog!!!!!

[@nashguy207]

Great video. Loved the editing the Will Ferrell insert and others. LOL I like the stance much better now it was a little to narrow before. Doing great buddy!!! Have a great day and God Bless

[@johnchassie-rideout4927]

Looking good. This build is going to be awesome. Love all the stuff you got planned for this one

[@Lfrperformance]

Great Rant/Explanation of Horsepower vs Gear Ratio, I have a very rough time explaining that in the ATV World! So misunderstood by many, many people!

[@RedBeardsGarage]

I get it all the time

[@Tmansgokarts]

LOL, I always get that too. " if you put a bigger engine on it you'll go faster, then I have to explain how bigger isn't faster" RPMs , ratio, tire size and weight dictates that.

[@josephyost22]

I LOVE THE YERF DOG SPIDERBOX VIDEOS!!! Keep up the AMAZING work!

[@jackharris8932]

The 670 vids are great keep them up they are better than mini bikes or drift trkes

[@eze-fpv848]

Red beard don't worry about what people say because there's always going to be a few of them but I like the way you explain your project and I like cars and cams too and I've seen yall get together and race and thats great and it's all about having a good time ...keep doing what u do...

[@silentdeath9237]

You should do a project using engine and transaxle from a front wheel drive vehicle mounting it in the rear making it a pusher instead of a puller something with a 4, 6, or 8 cyl would be so cool and really tear things up.

[@RedBeardsGarage]

I have a 2.4L Honda engine right outside my garage thats 160hp lol

[@plusplus3]

Love the videos!! I've been learning a lot from them.

[@randywells9628]

fantastic job young man...God bless and keep up the awesome work.

[@Trlhound]

Can’t wait for the next vid of this thing rippin it up!

[@anthonypollard1246]

You said it best you're off roading that's the difference between them and you...By the way great builds 👍👌

[@williamcallaghan5271]

Awesome video brother! The 670 is looking sweet. My son and I are greatly looking forward to 670’s progress. Keep the videos coming.

[@RedBeardsGarage]

Got more coming man

[@mckenzieboyz]

Better than a normal side by side man! Awesome!

[@RedPill.Action]

very nice video guys. props on your build its going great

[@markssmallengines3542]

Your spot on when you talk about gear ratio an torque. I read some comments on yours an cars n cameras then think wow are they really that uneducated. Great vid once again and keep up the great work you doo 😁

[@Luybaton]

I loved thst bit about 8mins in through the video good break down

[@franklindeesulliable]

Killin it with that intro. I know u put some work into it. I personally like it and it's the second one like that. Keep it up

[@RedBeardsGarage]

Well thanks man. Got a lot of videos coming out so stay tuned

[@scottpeck1149]

Sounded like church bells buddy when you drop the bearing on the sprocket Hah Hah Hah🥇 praise god, your a good guy👍

[@GordyOutdoors]

I'm really liking this kart. I've been thinking about an independent rear on my ytm200 powered buggy. I'll be watching your videos to see how yours goes. Keep em coming!

[@JasonStaleyFitness]

That kart looks wayyyy better

[@alexmosley8600]

Great Video hope you had a great trip.

[@mowerkingedmowingandvacuum7995]

Its coming along nice red beard

[@Maverick_Van_Traveller]

Nice Austin Powers move at 1:34

[@32calvinboone]

Now that Fact tell it Red Beard

[@LuchMobGarage]

The extended arms to house the bearings is an awesome idea brother . I need to replace the axle on that klipper sidewinder go kart I mentioned to you and wanted to go at least 48" on the live axle it's a single seater . man keep up the good info bud.👍👍 Dorito....out

[@RedBeardsGarage]

Thanks for watching man

[@wjmike2200]

“We are trained professionals” Lmao good work guys!

[@user-wq8oh2bx3m]

Good work MR

[@ClimptonDiddlehopper]

The plate on your motorcycle lift you removed is for taking rear tires off of motorcycles without having to remove fenders or jack the bike up dangerously high.

[@ClimptonDiddlehopper]

Also move your shocks out to the new bearring asnd that will also help from bending axles. The wider the axle the further apart the coilovers should be mounted.

[@justintime2993]

Hey thank you for sharing your experience! I'm going to be buying a baja reaction 150cc

[@mylostwife5230]

Ayyyyyyyy love these vids red beard!

[@dieseltrucker5096]

I threw a predator 420 into an EZGO TXT but was disappointed that I could not have reverse. I can not wait to see how you put reverse on this one maybe I could do the same. Love your content RBG.

[@RedBeardsGarage]

Thanks for watching. We should be doing the reverse in just a few weeks

[@mattmotors1662]

Love the updates

[@g-man8008]

Take your spacers and hubs to a machine shop and let them mill out the spacers to fit your hubs. The further the spacers are away from the hubs,the more of a chance of breaking the Hub studs. Just a suggestion for you.

[@RedBeardsGarage]

Yeah im going to just wanted to get it thrown together for a ride

[@trialnterror]

I was thinking I could throw it on the lathe and mill out a groove!

[@mrgarlock4626]

fab work looks soo good!

[@titanstudioproductions335]

Good video. I like your style of videos 👍🏻👍🏻

[@RedBeardsGarage]

Thanks for watching man

[@jerrye5969]

Dude awsome love the new intro awsome music

[@RedBeardsGarage]

Thanks man

[@afarley17]

That yerfdog is a beast, mine is still all stock...lol

[@RobertPerrigoOkiechopper]

Well.... The time has arrived to start thinking about a small lathe and mill.

[@RedBeardsGarage]

Yeah I want one pretty bad right now

[@Eighty8Fitter]

His locking collars have locking collars 😂

[@GodschildinNC]

Nice addition to the 670!! You should add some fenders, so that when you throw up a rock it does not hit you. I am eagerly awaiting the IRS!!!

[@RedBeardsGarage]

Yeah I have some Fenders to put on it I need to get to installing them. IRS coming very soon

[@drewsgreen34]

Literally had to pause it when I heard "something came in the mail today" haha

[@RedBeardsGarage]

Lol

[@drewsgreen34]

Red Beard's Garage but yea can't wait to see the new back end

[@ken41277]

love the vids. alot of fun.

[@gokarting1018]

I just got new studs for the hubs and used the nuts to space the wheels out on the front of one of mine

[@tyleredens199]

You should do a meet and greet in TN!!

[@RedBeardsGarage]

I wan't to just wanting to get a little bigger

[@rdc7622]

Great info.

[@electricdeckhead3083]

nice, this rig is looking the goods now. little tip you always want your front end a little wider than the rear on an off road build, makes for way better cornering at speed and less chance of rollovers also, even more so when you go to IRS, also it might be worth taking those front arms and making some jigs to suit them while they are straight, just in case you ever bend them then you have the jig to remake from stronger material next time, I like to build lower arms from square tube myself, doesn't look as good but way stronger.

[@RedBeardsGarage]

Yeah I need to pull them off and measure everything for future use. Thanks for the heads up

[@williamcallaghan5271]

Thanks for the info on front to rear widths/geometry. I did a lot of research, you are 100% correct but you already knew that. I’m in the process of rebuilding my buggy and thankfully hadn’t ordered my axle yet.

[@electricdeckhead3083]

all good, help where I can, I only mention this because my thinking was the other way around until many years of off road racing and building buggies to race this was pointed out to me and one of the biggest lessons I have taken on board to date in regards to buggy building. That and the ability to adjust camber on the rear with IRS will make all the difference.

[@gr8hairy1]

The only thing I've found online about rear axle width is about road racing karts, not off-road karts. I can't find any specs on what changing the width does to steering. I understand the idea that a fixed axle going around a curve will make the outside tire have farther to travel, but what is the real world relevance? Is it simply by comparison that it makes corning harder? Or is it so much that you'll rip your steering wheel off trying to get it to turn? How can it be calculated?

[@galatiel77ify]

I know this is an older video, but I saw several instances where a small lathe would have helped. They are quite handy and not expensive when bought well used. God bless

[@ericksaldana4453]

You should just take it to Napa and ask if they can mill the spacer like they do with the brake rotors

[@backyardbuilders9835]

well said on the gear ratios

[@fergusonhr]

Ummm, yes you are a genius on this stuff...

[@mikemoore466]

That's a nice 670cc setup. I'm going to start loading some of my go kart builds this summer when if warms up. I have a 420cc still in the box that I'm waiting to put on my spiderbox. I installed a 212cc on mine and it will run 40mph but it lacks on hill climbing power. I think the 420cc will be the answer. You should do yourself a favor and buy you a plasma cutter. I cut all my tubing and plates with it. You can get a cut 50 plasma cutter on EBay for less than $200.

[@RedBeardsGarage]

I have a good 50 amp plasma cutter just need the right plug in installed. Keep forgetting to pick on up at Lowes

[@mikemoore466]

Man it makes life a lot easier. It sure beats using a grinder. I got a piece of metal in my eye 👁 one time using a grinder so I use one as little as possible. I tied in to my 240 volt disconnect that goes to my outside A/C unit and ran me a plug.

[@strokedyamaha3746]

Your going to need some bigger rear shocks for that beast. When I upgraded to a predator 420 the difference in weight from the five hp was so significant that the stock rear shocks shafts bent not to mention the angle was way off. I went with some yfz450 rear shocks on each side and raked them out to the perfect angle. It made the biggest difference, trust me when I tell you that ;)

[@scottwoodham7453]

Thanks ,I'm building a murry explorer that now is getting a endapendent front end and the rear axle is going from a 40" to a 48",I like how you extended the frame for support ,I'm going to do that myself,the 420cc predator hemi with the stage one should do the job with the wide stance on a single seat frame,thanks

[@startcherif]

Very nice video

[@fergusonhr]

Love your vids

[@RedBeardsGarage]

Thanks man

[@inthegarage342]

Dude, you look identical to a guy I worked with in the carpet mills named Jason Hunter. Especially with you being in the Sweetwater area. I'm just below you in Cleveland. Anyway great video.

[@RedBeardsGarage]

What is the dudes name? Just curious

[@flcatalanotto0433]

Put steel over the arms and plasma cut RBG on it

[@mblake0420]

front end is a beating water witg all that leverage

[@phillipjordan5785]

hey red beard you should get a metal or plastic amo box for your battery clean it up a bit lol.

[@zacklennard2925]

Now it needs some itp mud lites , a roll cage, and a snorkle

[@stephanbossidy]

awesome

[@crowofjudgement159]

i would like to see some off road videos

[@livibrubaker22]

You should add fenders

[@Blurgamer17]

11:38 'Light Bulb' ding.

[@jr.fiebre3590]

Instead of cutting it you should have grinding with a grinding wheel make it a smoother and they should have come out but in your case was already band it

[@tonyash8080]

7:22 preach it!

[@jnthndyks]

Another great video. I was just wondering why you never use antiseize. It would make disassembly a lot easier

[@RedBeardsGarage]

I have a tube in my tool box I just didn't think about it lol

[@fgtldyjxgzyjxriceicr9880]

Me toooooooo

[@BorosTheGamer5021]

Ftw that cart has one sexy rear lol

[@bonezcuztomz7703]

Great video what the wheels set up

[@JasonStaleyFitness]

You guys need to get more performance parts for it

[@RedBeardsGarage]

Yeah they just cost a fortune

[@Taurus40D]

I have been watching your videos great videos lots of info ! I was wondering if you could point me in the right direction. is there a hub adapter that will fit 10" ATV rims im trying to fit some 10 in ATV rims on a 54' axle for my rear end. on my 606 Manco scorpion. Im wanting to order from go power sports if they have a hub for me.

[@michiganderoverlander1344]

Hey Red Beard big fan, great video, just wondering where you plan on getting your parts when you do independent rear suspension on the 670, im building a 400cc off road kart right now and I want to do IRS but I'm having a hard time finding prefabbed parts, or anything close.

[@RedBeardsGarage]

Go power sport has everything we will need

[@stevelindsay3643]

You've got room for dual tires now.

[@Aaronzahller]

You should get it powder coated!!!

[@RedBeardsGarage]

We may once its all done but this rear end will not be staying on it long

[@asher2646]

I'm literally building the same kart with IRS and redoing the cage and a few other upgrades the only difference is I'm robbing the engine from a GSXR 600 for mine instead of using the predator

[@RedBeardsGarage]

We are going to build a buggy later with a street bike engine just need to run up on a good deal

[@davinlyda1461]

You should use 520 chain so it won't stretch so much

[@RedBeardsGarage]

I want to just need to get some custom sprockets made

[@denoftools]

HELP, I just picked up a Predator 708cc V Twin motor for $100 at the last HF parking lot sale. I bought it because... well because it's a $700 motor and it was only $100. It's for a riding lawnmower but I don't even have grass (Vegas baby!) so.... Any thought what I should do with this thing? Is it even feasible to try and rig this up to some sort of 4 wheeled toy?

[@RedBeardsGarage]

Yeah you need to buy a 90 degree box off ebay. Google horizontal shaft engine to vertical shaft conversion

[@denoftools]

Perfect. Thanks.

[@lancehenthorn17]

Red Beard you didn't tell us about your deal of a engine! Shameful. Lol

[@mouseinthefalls7836]

You could always couple that motor to an outboard lower end unit and put it on a boat. Then change the size of the prop to something with the more aggressive pitch and have fun.

[@boogeyvlogs7728]

Bro I can believe for your talent . You can make your own model street car .can you do this ?

[@metalworksmachineshop]

Anti seize is you friend,,use it, parts will come off easier.

[@kontrolledkhaos4853]

If i Was in charge of this project I would use 1-1/4 solid axle it would be better but a little bit of pain in the ass to swap bearing hangers and a bit more expensive to equip to do new hardware

[@RedBeardsGarage]

Well this rear set up will be getting changed quit a bit soon

[@kontrolledkhaos4853]

Red Beard's Garage when you put a Mikuni carburetors do you have to do any adjustment. anytime I get a little G-Force to side to side is sputters and shuts off I'm thinking it might be the way I have it I'm using the stock tank

[@kontrolledkhaos4853]

Red Beard's Garage I must have missed that part

[@mormonmafia1705]

Awesome. Now what you should do is cut up the go kart and modify it to a golf kart. Put the rear end and front on a golf kart. Would look f#€ken sick. That's what I would do

[@user-neo71665]

he already built a hoveround for grandpa

[@mormonmafia1705]

Or what he should do is cut up a 4x4 quad and put it on that go kart. Thats one of my dreams. Is make a 4x4 yerfdog go kart

[@user-neo71665]

Harder than it sounds. The rear is easy but modding the front on a buggy takes some figuring to get all the suspension geometry right. I found out the hard way it's easier to just build a frame from scratch.

[@buttercupwalker]

you should make me a once in a lifetime deal on the old axle..lol

[@bradh5730]

love the upgrades but I have another perfect one for you gas tank upgrade to a generator tank you can go a lot further with it. I've done it myself from a 5 litter to a 25 litter tank and it looks like you will be able to make it fit there with a couple modifications

[@RedBeardsGarage]

I have a guy that builds us custom tanks and we have a 2.5 gallon one for this engine. He can make any size tank you need

[@bradh5730]

well that's not bad tho it's a good thing it wasn't bigger. I just seen the fire video have figured out what your doing with it yet

[@RedBeardsGarage]

We actually gave the Yerfdog frame to some subscribers

[@holtpage8226]

The 670 is my favorite kart build you do. I was wondering, when you move the swing arm to another kart do you think mounting it with a triangulated four link would make for better performance than the current two pivot point set up?

[@RedBeardsGarage]

I will probably leave it a two and remount the shocks above the axle instead of in front of the axle

[@jasonwhite8722]

i think it would have been wize to run a larger diameter axle

[@butchs.4239]

You need to pay a visit to Chris and let him machine your spacers to fit your hubs. In trade you could help him sort out the electrical issues he has with the GS500 buggy he built. I'd be willing to donate a coil as from the look of it he'll likely replace the motor before he solves the problem with the current one.

[@RedBeardsGarage]

Well my brothers work has a machine shop that is just up the road so I will be getting them milled there. Chris lives a good 5 hours away.

[@butchs.4239]

That's cool. I keep thinking you are close to Knoxville when you're actually closer to Nashville.

[@sandylancaster5901]

go red beard

[@willgrcmt]

Why not take the hub and wheel spacer to a machine shop? Should take them just minutes on a lathe to fit them to each other properly.

[@RedBeardsGarage]

Im going to later just didn't have time in this video

[@81chowder]

Oooh, you seem a little ill, lol! Just remember most of the people on here commenting about the speed on here are like 12 years old. Lol!

[@kenny2631]

Did you have to raise the engine any for the chain. My 420 swap on my crossfire i put a 72 tooth on the axle was wonder how far away the 10 tooth sprocket needs to be so the chain is smooth. I might be just overthinking it

[@aubreysmith41]

How did those hubs hold up? I’m having trouble with the rear hubs for the 1” live axel.

[@gr8hairy1]

This is exactly what I'm doing to the rear end of my Kandi 150gka. I have a 55 inch rear axle I'll be installing this weekend with 2 inch spacers on the front. How much has the wider rear end affected your steering? The only thing I've found online is about racing karts, not off road karts

[@nicholasboyce993]

thumbs up on this.no one on youtube has touched on this topic, sure it can make a difference, but are we talking 5% or 70% difference? can it break steering?

[@stickupkydd9454]

I wanna c u guys vs carsandcameras do a 670 cart race

[@zekemchenry2368]

Bad A*s video! Also like the Whitecomic song too!

[@kingavegarage8722]

In first 5 comments! I'm really liking this build! Great content as always!

[@kingavegarage8722]

Lost some clearance with the 72 sprocket

[@kingavegarage8722]

Also you forgot the link to the EZ Outs, or Speed outs. Thanks!

[@RedBeardsGarage]

Just added it to the tool section