4WD Mini Rock Bouncer Build Suzuki SV 650 Part 3

Today I'm starting a new build a 4WD mini rock bouncer using a Suzuki sv650 for the powerplant. This Suzuki sv650 v twin makes about 75hp and should be perfect for this mini rock bouncer! In the first part I'm fabricating hub adapters for the wheels and looking at the general layout. I'm also starting on the front suspension layout and spindles and ball joints. If you have any suggestions for this build let me know in the comments below!
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[@DetroitMicroSound]

Put the engine on a hinge. hinge pin in the front, with adjusting bolts that raise and lower the back of the engine. That's your chain tensioner.

[@jeeper426]

i was going to suggest this exact thing with a slight modification, slide plate with locking pins or bolts to keep the engine from flopping against the chain

[@mattmaly5085]

That wont work

[@bigjim8088]

@@mattmaly5085 your comment is truly inspiring to fabricators.🤔

[@esqueue]

@@mattmaly5085 A way to be helpful would be to give a reason why you believe that it wouldn't work and if within your capabilities, a better solution.

[@DetroitMicroSound]

@@mattmaly5085 It will absolutely work.

[@j-beatsimaginationstudio1987]

You always figure it out Brother. The fact that you build ALL THIS AWESOME STUFF by yourself is nothing short of miraculous. Keep up the great work and be safe :)

[@kerrypierre9494]

I agree 100 percent, this young man is a helluva fabricator 👍

[@esqueue]

Yup, when he says "I'll try to see if I can do it" I know damn well he will get it done, one way or a another.

[@sykwookiee]

I concur, I am an OG here and I have watched him grow from a foul mouthed sketchy kid to a total badass building something from nothing...I ain't complaining about the language, I just didn't want him to be shooting himself in the foot with sponsors and KZbin...hell, I'm a retired trucker, and y'all know that we can be quite colorful when we get around a bunch of guys...

[@jasonguild9306]

I'm with everyone here. Amazing work, super fun to watch the fabrication ability

[@j-beatsimaginationstudio1987]

@@kerrypierre9494 Agreed my Friend :)

[@howtoguroo2686]

The drive pulley is always hooked to crank shaft , spinning at crank speed , if you put it on outer shaft it will have to be in 6th gear to get the same speed . 1st gear might not be fast enough for the drive pulley to engage

[@kristinewilson5353]

Wow. I hope he sees this. That is very true and a major flaw he overlooked. I never would've thought of that until I read your comment. I think it won't even engage unless he's revving the shit out of it. I really think sprockets are the best option

[@ah617006]

Was just thinking this same thing..cvt operates between certain engine rpm so it seems to me all other gears will be useless

[@howtoguroo2686]

@@kristinewilson5353 4th , 5th , and 6th gear will only be usefull . he will need a large front sprocket and the smallest sprocket on the drive pulley

[@howtoguroo2686]

@@ah617006 the 1st 2 or 3 gears wide open may not engage belt .

[@Mad-Duk_Machine_Werkes]

I said this last video- Been watching this kid for years, not sure he reads or gives a shit about his comments- Sometimes I honestly just think he makes ridiculous or outrageous vehicles just to get more people to watch & to see if it fails - You'd think he'd realize after building so many Karts & buggies you cant treat a primary clutch as a secondary -

[@johnmorgan1629]

That initial bit of welding on the front, was like watching you trying to herd cats, while patting your head and rubbing your stomach. Probably more than a few people, that wished they could just reach through the screen and steady stuff for you.

[@charlesirby9222]

I'm with you there John!

[@sykwookiee]

Yup, me too...I'd hang out with him and just hold shit...part of the problem with getting to know some of these guys is all of the clout chasers...people who genuinely want to help usually get lumped in with the trolls and assholes...

[@jasonbirch1182]

I want to yell at him sometimes. He may need to graduate from bricks and stumps to a simple jig at some point.

[@vincentchaza8111]

Where are yu @???am the best w/shop assistant there ever was

[@bluebowtieo4]

Build an adjustable universal jackstand that bolts to your spindles and build your front ends without tires.

[@bailarinmax]

Really likes this idea.

[@rhicks4492]

You need to watch Donn DIY he made a utv and had a wooden structure to build it on to keep everything were he wanted it. This would save you a lot of headaches try to keep thing were you want them. Keep up the good work love your build videos

[@SteveGeremia]

Exactly a wood build table/frame or more jigs to hold things in place would decrease the frustration and effort.

[@Thewatson77]

Yeah that was a pretty clever little thing he did

[@EngineeredToDesign]

Donn is also amazing at what he does these guys should collaborate somehow 🤙🏻

[@richball9576]

You should get yourself 2 pieces of 8" I-beam about 8 feet long to use as a frame jig. It's super easy to tack pieces anywhere you need to hold everything in place. Keep up the great work Chris!

[@rompdude]

Bump this!

[@johnhiggs5932]

It’s your world, Chris. We are just living in it. Don’t worry about the haters and keep up the amazing work. 🤙

[@EdwardMurray06]

Time for an electric hydraulic tubing bender lol This is my favorite build yet. Ty! I have a side by side with a CVT and I've been tuning it with aftermarket weights, sliders and springs all summer, trying to get it just right. One thing I've learned and picked up on during all this is that these clutches are extremely tunable down to very small changes you barely feel. I think that by putting the primary pulley on a jack shaft, you could be limiting it a little. I'm wondering if any lower gears would allow it to engage at all, actually. 2k RPM on your lathe didn't budge it. I like the idea and it's always awesome to explore these things, but I'm thinking if it doesn't work well you could always get some heavier weights and different spring that allows for lower RPM engagement. Love it so far man, thanks again!

[@tinkerne-round4079]

Chris your front differential runs off a driveshaft with two universal joints. I'd say it would be ok to set it in the middle of the front end.

[@square348apple3]

It would technically be fine yes but the is a percentage of the rotational speed lost depending on the angle of the drive shaft having it straight would also keep vibration down

[@esqueue]

Odd comment from someone you don't know but I am actually proud of you. This is very impressive. As soon as I started thinking about you losing expansion room on the driven pully, you thought of a solution by machining away the spacers width to compensate. This reminds me of a Robot Cantina's 420cc Honda Insight swap where he kept the car's gearbox and added a CVT. For faster acceleration, you may be better off taking off from 3rd gear or so. I can't wait to see the end results.

[@jj-os7bs]

16:50 well hello mr caterpillar

[@delmas15]

Chain tensioner is a must. Going to be a killer ride.

[@bigmikeyc83]

That guy sending u stuff is awesome

[@evilbeetlekustomscreations4965]

I love his little shop little shop puts out big toys!!!

[@brucebasil4164]

I can't give you enough credit. You are good.

[@elainezzz]

shes coming together!!!!

[@averyintrusive7610]

Wrap a rope or something around your rafters to hold objects upright. This buggy is going to be awesome.

[@ronniewilliz153]

I said the same.

[@beetburger7883]

I LOVE THAT BUILD !!!!!

[@magiagizmo]

Hey Chris have you ever thought about making big welding table not high just for the frame height and then you can make any Jig ,I see how your struggle some times and I think it would be a cool project ,I’ve had a table myself 3mx6m and 50cm high it was awesome ,added some ramps as well,Keep up the good work 💪🏻Damian From Poland 🇵🇱

[@jerrywilcox9890]

Lol where is he going to put it in that shed lol.

[@shanebellimpracticaldesign]

I use scrap pieces of wood to make jigs and screw to the floor. Now in a shop with concrete floor and a 4x4 diesel golf cart in the works so going to make a plywood base to build on. Your videos have been very helpful. Thanks and keepem coming.

[@bryanmorgan8501]

I'm glad you edited your stuggles in the video,most people edit that stuff out. Glad you got through it.

[@gavingroves3942]

I’m Liking these longer videos

[@mitsche9015]

You at least one helper to do the work.

[@anesthetized7053]

somebody get this man some more bricks to hold his stuff in place while he welds

[@marcelloroos766]

I'm frikkin dying to see the endresult😛

[@nathaniellangston5130]

You should try using brass shim around the axle when you put it in the lathe when you want to dial it in on the 4 jaw chuck. It often makes it clamp up being straight and true easier and makes adjusting the axle in the lathe easier!

[@thebigcacacarill]

Can't wait till it's done

[@chrishorbatt3504]

I think you dont read these but that sliding linc on the suspension was a cleaver idea!

[@rustyshacklfort9508]

Although nobody is gonna care , it was my understanding that you want the belt the sit about a 1/4 to an 1/8 proud on the secondary clutch. So he probably didn’t need to mess with it.

[@rarbaugh07]

I agree lol but he is learning hands on and has the skills to correct his mistakes later.

[@rustyshacklfort9508]

@@rarbaugh07 I agree

[@johnmccanntruth]

It’s looking good !

[@galieric]

All those polaris clutches are almost the same .. they can all take 100+hp .. cheers .. can't wait to see how that works .. keep up the great work

[@verygoodvibes]

a rasberry to go with that beutiful secondary. ouch but glad it worked out. nice vid.

[@kendesign3622]

If you're using independent differentials for you solid axle build you should raise the diff cases for more ground clearance. Also move the engine to the rear so you have somewhere to sit and drive the primary clutch directly off the splined output shaft of the motorcycle trans. Look for a splined output adapter used on Legend cars. Then run your cvt belt forward to drive the secondary clutch. Doing so you will have no chain to adjust. The 1st couple gears of the bike Trans might be useless because the primay cvt clutch won't engage until 2000+ rpm.

[@colmmorley]

For anyone wanting to build their own projects, the 1st couple mins of this video is very accurate 😂

[@berube361]

Saw sv650 in the title and im actually picking up a 2008 suzuki sv650 on Friday for a low $600. Bikes in great shape with a title and low mileage. Just sitting for a year so needs a battery and fresh fuel/fluids and should be good to go. Great motors with plenty of pep especially as light at the sv650 is. Should be great for this application as well.

[@finleymonuma5592]

By next week...u will be at 500k 🎉🎉🎉

[@gergelykovacs4113]

Brick aided design.. I love it! :D

[@schism47]

This thing is gonna be badass

[@bryduhbikeguy]

I used to make axles.The straighteners had a press with adjustable width V-blocks and a couple gauges like you used to check roundness.1 to 1-1/4 thousandth was acceptable.You Need a 2nd jack-shaft so the engine to CVT will be 2-1 at least or it won't turn until 4th revved out.Love the look of the ride so far.

[@oldhillbillybuckkowalski]

Scrap 2×4s and some deck screws sure do come in handy for making large holding fixtures for stuff like holding those tires in place while you weld stuff.

[@nicolasst-hilaire7798]

Shoutout to the caterpillar making it's entrance at 17:45

[@ernesthood3290]

Man I can't wait till I done

[@FangOfTruth]

Two things. Your parents must be amazed at what you come up with and accomplish. The gearing ratio range will be tremendous.

[@domenicozagari2443]

Could use aluminum to make it lighter and some gas to get rid of the grease, use vinegar to disinfect wounds.

[@tylerf-j2580]

For the people commenting telling him he's doing it all wrong, tell him what's wrong and how he could fix it, just telling him it's wrong does not help him fix it in any way.

[@thomaspryor8202]

Nice work on the lathe!

[@zip7806]

Thanks to you Fumbling and Foolery. I've decided to start my Own Fabrication channel...

[@MrBlakdogg]

An overhead hoist is a shop's best friend, but I must say your footwork and balancing is pretty nice

[@EJ-74]

That begining was hilarious 😂 hey but you always figure it out and don't give up and have awesome builds

[@msrchannelid4001]

Saya dari Indonesian . Semangat terus bro.. i like your job

[@sweetdreamscustompaint8171]

Aw yeah your a great builder!

[@djo_man]

I should’ve mentioned this in an earlier video, but I’d recommend putting the engine in the back, and sitting in the front. That way, you aren’t wrapping your legs around the transmission/engine. It would also be a bit better for weight distribution. On a side note, I saw your video, and remembered something. I have an old Chevy Smallblock that’s in parts right now, and I have no plans to use it. If you want, I could put it together, get it running, and ship it to ya for use in a later project. If you’re interested, we could work out details of parts, such as electronics, fuel injection, aspiration, etc.

[@silentdeath9237]

Unless that your differentials are stationary you are going to need slip yoke's on your driveshafts. If the axle is up on one side and not the other there is always lengthening and shortening in the driveline. Monster trucks rock crawlers anything you can mention always has a differential driveshaft that has a slip yoke

[@ramontero1470]

a propeller spline if im not wrong

[@FarmerFpv]

You're a mad man and I love it! Keep being crazy Chris!

[@GaisaSanktejo]

For future reference, you could clamp a trestle to each respective wheel and use those to force it to stay in position during the assembly/innovation/creation/construction phase ;) Also, I've seen others make this suggestion, but the size of everything there makes me think you may find the best seating and engine/gearbox position would be "side by side"... It would involve a little redesign but it should help balance things out and eliminate the risk of either you or the running gear being located in crazy precarious positions?

[@gagepuffinbarger6939]

You have a lot more patience than I do

[@jq7130]

Your amazing, in a different class buddy!

[@sammcbride2464]

Seems like an easy solution is to also put slots in the motor mount so you can tension the belt first, then the chain last. To move the engine just use the same approach with motorcycle rear wheel. Sitting way in the back is going to suck for some driving. If you can't see over the front end, it might be trouble. Also, the softest ride will be the middle between the front and rear wheels.

[@la_plata3588]

midnightrun is a dope dude

[@joelgarside8925]

I can’t wait to see it rip

[@broo_shs]

I've use kids Play-Doh to took inside measure to the tapered shaft,first i put lube all over in then little metal stick where are a cap so play doh its easier to pull out when its ready then just take measure and lathe stuff out.

[@lucasbecerra9371]

Maestro de la metalurgia!!!! Awensome!!!!

[@jarekmace1536]

I've seen several videos talking about a skateboard wheel for a chain tensioner gear and having great results.

[@nekotherion7317]

Im doing something like this with the intruder 1400 engine, w/ oil cooler, so should be fun, just might need larger CVT/trans/diff for the added cc/bhp

[@cragar]

Your killing it, bro! Nice work. Looking forward to your next video.

[@davessparetime83]

Take the clutch and make a curve adjustment slot that doesn't affect the belt during adjustment. So an upward back curve to adjust chain to engine

[@MIKEH.777]

Chris if you want this to be a rock crawler how are you going to get it to engage at low speed if 2000 rpm's wouldn't engage it on your lathe . And instead of a roller tensioner for the chain ,make it a sprocket tensioner instead. I love how the build is going I cant wait to see it done. Keep up the great work and God Bless you. I hope your arm feels better, I know those wire wheels hurt lol. 🔥💯💪🏼👍👍🙏🙏✌😊✌

[@666pumpkinlord]

A little Pantera cemetery gates remix??? Nice

[@medzgarage4037]

Love the videos bro

[@faysofleague6545]

Maybe... wooden cradles for the tires? with locking cart-wheels, might be handy.

[@Jon.O]

Amazing fabrication skills 👍🏻🇬🇧

[@mbeketay2266]

Rather b welding comments be crazy everyone giving their own inputs crazy!!!

[@sweetdreamscustompaint8171]

Ha!Ha!Ha! I've had the same problems. Just build two- by -four stands and screw them to your wood floor.

[@jamesengle1193]

Tire supports. Use angle iron on the floor going infront of the tread and behind with uprights off each of the outside to tire with a clamp over the top of the tire. Screw assembly to the floor to keep stationary. This also gives you mounting points for frame jigs and suspension jigs.

[@mattryan9376]

Congrats on 500k subs chris!

[@shane_7even_ten569]

Do like a laid out seat so you’re legs are over the transmission with your butt behind the trans and build a nice scatter shield for the CVT like the yard kart has on it.

[@Jonathan_Grider]

What would you think about making it a 2 seater? And possibly make the 2nd seat weighted when you’re riding solo, and be able to remove what ever you have as a weight, when you have a 2nd rider? Or you could make it so you sit on the left side (just like a everyday vehicle) and make the opposite side weighted with battery, cable chassis, cooler, cooler for drinks, radiator, etc, etc.??? It would mean you would have to push the sides of the frame out a bit, but you would be able to make it symmetrical and evenly spaced. Just a thought. Love watching you craft a usable vehicle out of ideas! It gives us all a lot of encouragement!

[@mackelby1]

Whatever you pay to ALWAYS have kick ass tunes on your vids, money well spent!

[@fishinkarts2865]

Use an idler sprocket for your chain tensioner. They aren't any louder than the sprockets themselves and they last forever.

[@bart9859]

You might want to take a look at full size tube chassis rock crawler to find your seating position. Also you might want to think about steering. You might want to think about a small hydraulic cylinder/ram to help with steering. These are just a couple of ideas. Bart

[@deandaley4572]

This thing is so cool

[@mccautomotiverepairdesignf8991]

Slot your motor mounts and use either 2 hydraulic hood/tailgate lift supports or 2 threaded tensioners, that way you aren't changing your engine position geometry therfore not effecting oil flow or smooth operation

[@nealmiller8356]

I'd say either build a ground based clamp for setting up and stabilization or cinder blocks. Other than that, get a buddy to help. (Montana is too far to travel, but I'd be closer to my kids) You really put the peddle to the metal as far as total parts fabricated and assembled.

[@kurtjohnson3496]

Screw some boards to the floor for bracing. Triangulate them and clamp the tires to them. Lay it all out one the floor with chalk lines

[@FranciscoSilva-np9qx]

Show de bola seu trabalho não perco um vídeo aqui do Brasil

[@ZachTheSuper]

Almost at 500k🤙 awesome stuff man!

[@dlowerymcse]

Put the motor mount closest to the drive train on a large pivot/cradle then set the front mount in a way that allows for adjustment up and down to fine tune the chain tension. Then just a little up and down for fine tune but swing out bolt to remove and install the chain. Kinda like the motor/belt drive a Hardinge lathe.

[@nickyduhr8355]

You are a good machined

[@TheChris1946]

Hay Chris just get the chain close and adjust it with different size front sprocket 13 tooth 14 tooth etc. The cvt will make up the little difference

[@cinnamonrollypoly]

Hey Chris, you need a shop assistant? Lol, watching everything move around on you made me want to reach out and just hold it for you.

[@rcclassiccrawlers4368]

You might want to do some research on primary clutch spring tension. Find a spring that takes less RPM’s to engage. That way you’ll be able to use more gears in your primary transmission if that’s what you have in mind. But more than likely you will only be able to use 2 - 3 gears otherwise the motor will either lug down or it’ll over rev trying to keep the belt engaged.

[@mattmaly5085]

Good advice

[@craiggreygoose5594]

Someone send this man one of those frame building tables that Red beard got. He clearly needs it. And it would get loads of on camera time I'm sure.

[@troypersson7630]

I am in awe watching you work, I could never have built anything like this when I was your age and as for that I couldn't do it now at my age. Do you do any drawings or do you just build it as you go? Anyway I think you are an awesome fabricator and I am surprised some company has not made you an offer you couldn't refuse.

[@LearnandLive97]

Great stuff bro 👏

[@daviousmaximus6446]

time to build that floor jig

[@johnnykjaersgaard7978]

You could maybe off-center the Seat to one side and have your legs next to the gearbox opposite the CVT - awesome build

[@tomheusequin1988]

Not 100% shure if posible. Make an extended axle for your modified pully, so your could move over the transmision to the right. also moving the front drive shaft to the right so the motor may be able to sit lower?

[@carsonkosier4010]

To make your driveshaft have movement you can use box tubing slide side of each other and grease the inner shaft

[@ryanrotten8595]

I have that set up on my Toyota front and rear works amazing

[@Fabrice1970]

You have invented a new measurement metric : THE BRICK… CVT setup has been used for decades on French mopeds peugeot 103SP and MBK 51