So Issac and John don't think we have forgotten about the Indy kart. I'm personally hoping it's because you are hunting down something special for the power plant. (like a power bee) Love the builds thanks for the content gentlemen.
I think you could get slightly more top end speed and low end torque if you move the engine back slightly and allow the belt to reach full travel on the cvt. At idle the belt should ride at the top of the pulleys, and be nearly bottomed out at full RPM.
When you cut the support for the cvt, now all the torque load is on the crank shaft end. Could be why the other engine gave out. Might want put some kind of support between engine and trans. If not, every time you apply power the crank is being pulled back on, putting a lot wear on bearings. Just a thought. Also like others have stated check for a high/ low on transfer case.
400 polaris in high range will run about 60mph on the road. I think around 38-40 in low. Back in 2003 a friend of mine had a 400 sportsman I think. But that thing will smoke the lifted go cart. Great video guys I’m a big fan of the show
Awesome project. Not in least crazy. Few of us can afford a new POLARIS anything. To take one ready for the bone yard and get it going again with an alternative engine gets us in the dirt as oposed to having nothing. I beats building one from scratch too.
4:39 - 4:46 that noise !!! It reminds me of that 30's-40's cartoon when Mickey, Donald and Goofy are mechanics and Peg-Leg Pete makes them chase a squicking sound on his car ^^
my 400 polaris would do 50mph+ easy. I think you have some improvements to make, that should be faster than that. edited to say i think the pesron with the comment about not using the CVTs full travel might be on to something.
I think they may have had it in low gear.... I know my 500 sportsman had a low and high and my top speed in low was 35 my top was 55-60 I’m a big guy so could be different for them
Leon Hosier this was actually my first thought. But then I thought there was no way they wouldn't have known. At least I'd hope they knew there was a high and low.
Theres nothing like a friend who says "yes! I think we could do that. Everyone i know says "meh! To much work" sometimes its not about the hours put in.its about the hours of fun you get out of it at the end.
It will do 50mph stock. Try doing a fmf/dg muffler its a little smaller and it won't resonate heat, and help with the race carb, you guys just keep doing great stuff,keep having fun guys!!!!!!!!!!
Just a tip for changing the belt on it. Put a pry bar or screw driver between the secondary pulley and spread it open. Makes changing it so much easier. Won’t have to keep unbolting and bolting.
@@philtripe they were just making fun of the fact that cars and cameras puts predators to replace good engines that just need an easy fix, sure predators have torque, but no speed they where meant to be on a log cutter and wood chipper not on a go cart or quad
Because my drive is 12+ hours, I'll be starting down about 5AM Friday morning, showing up Friday afternoon ~5pm. All I have is an old but customized Baja Warrior, w/stage 1 - 212, CVT, camo paint!
What oil do you use in your engines? Ive also had problems with these preds, some times you dont get lucky an china doesnt clearance the rod to the crank right which is more than likley why the stocker 420 froze up
@@cdiienno they still have the governor hooked up so it's just not reving up as high as the factory engine. If they take off the governor and set it up for higher rpm it'll go TONS quicker. also, the factory engine for that atv spun up to 5000+ rpm from what I can tell.
Nice A spiderbox build!. Mine had a 420cc and it was a beast. I sold it to go to a 670cc powered Roketa GK-06 I'm currently working on. I wont make it to this Mini Mayhem but I'll be trucking down from Boston for the next one.
Legend has it CnC`s responds to messages. One problem I see is your clutches are not matched. You have a 780 primary clutch with a stock Polaris secondary, change out secondary to a 780 or change primary to the stock Polaris clutch. On the secondary the top of the belt should be sitting in the groove flush or just about flush with the top of the pulley. This is maximum low end torque, right now your belt sits too low and youre losing low end torque and top end power because by the time the primary has fully ramped up at max rpm the belt has barely moved in the secondary...basically right now its like youre starting out in second gear (using a three speed gearbox for example) all the way thru your power band and then to third gear. Next off check belt tightness, you run a straight edge from where the belt sits at its lowest point in the primary to its highest point in the secondary and push on the belt at the middle. The deflection shouldnt be more than an inch +/- a quarter of an inch.
Jon I almost dropped my fone when u said "2/10 of a mile 😂🤣😂🤣 in 35 yrs of living I've never heard some1 refer to distance that way .1/8 1/4mi 1/2mi 3/4mi maybe,,.. I'm using that tomorrow at work 😎😎👌👌
I have a 2000 sportsman 335 and in high gear it tops out around 45mph so mid 30's is not a bad starting point. If it is like a lot of the other polaris quads the hard part will be getting the 4wd working as they use an electric controlled locking system in the front hub to engage and disengage with the front differential.
Was gonna try to attend this time around but just wrecked my baja 200 just yesterday and ripped my hamstring so wont be making it this time. But i have plans to attend one at some point. Great vid as always keep it up.
Hey name is alex watched all your videos really like em and all the info I only have one request if you guys could possibly do a x1 pocket bike engine swap cause you guys haven't have a pocket bike video and I think (ITLL BE FINE) lol
That polaris would go faster than 40mph stock cause i have a 150cc stock and i had it toped out 35 and if that had a 300 on it you looking about 50 60 mph
Fuck Polaris Don’t ask me a question!. I have my rights to say that. There not cheap hard k fucking work on they break with dumbass people that have 40” BKTs. Like cmon I ain’t fixing no Polaris wheelers anymore! Unless u gjve me 2k
dirt bike addiction Polaris is shit. Yeah we work together bud. We worked on one broke cuz Polaris is shit, fixed it, couple days later, broke again, shit isn’t cheap bud, try working on one yourself and see the prices with no discount or anything
I have that same yerfdog.. I like it a lot, but the person I got it from completely messed up the wiring. I have been getting headaches trying to fix how they messed it up (the cart runs, you just have to start it with a screwdriver). I'm looking forward to the videos on that cart. I hope you keep the GY6 in it.
Hahahaha. Wow, I cant beleave that Isac lost again. And good luck at the Oregon play date. Was going to build somethi g to take and meet you guys but well, life happens. Sorry im going to miss you all. Enjoyed most all your build shows. Don.
By the looks of it mine has waaaay more torque the only advantage he has is its 4×4 i bet mine will still out climb him i put huge bubbly wheels an tires on the back of mine there from a three wheeler
or maybe the sprocket isnt tuned for the 22hp it has? Ive had a chinese 150 and they have about 7-10 horses (brand). To think of it. This has more power than a blaster 250. With stage two and a fixed sprocket this atv will be a beast. This machine could be doing 60 no problem
I was getting good wheelies on a "lightly" modified Polaris MV7 700cc. I had to hold the brakes and rev to the brake limit, then punch the gas and release the brake. It would tail stand off the line.
I have the polaris 440 4 stroke and it does about 45 mph max. Great job, I've been curious to see this happen. --buy a header flange! Get that clutch working right. It might look like it when there is no load, but I don't think It's working right. I would make that primary clutch engage Waaaaay earlier too. That engine should have the torque. I have a stage 3 420cc lifan in a buggy I built. It shreds from low rpm if I set the clutch that way. I think that 4x4 would be far more fun if you could go lightly as well.
Little tip, if the belt doesn’t have it done already, take the top off of the belt with a grinder to make them flat, it gives the gearing more bottom end torque
I had a 98 Polaris explorer 300, 300cc two stroke, same set up it would get 38/40 no problem, top speed was around 45 but it struggled to get there, the quads were not built for speed, they were built for torque being 4WD, check the gear ratios on the axles, the original 2 strokes spun up higher than the 420 does, probably why it seems a bit on the lame side...
Hey john that yerf dog is a spider box I have one too if the engine is in good condition that sucker is fast mine we pulled out of a guys farm told us just to get it out of his site if you have any questions on it just ask I’ll be happy to help with it...... probably won’t need my help but Incase you do I’m around
Was gonna say, We had luck through advance auto parts on tracking a belt down for a build we did. Delco told us they didnt make it, guess the belt manufacturer lol. But looks like you got that solve. Highly recommend putting a guard on the belt, tends to hurt a bit. We have a Polaris 250, but definitely does NOT have the 250 in it. Atm we're running 64mph, gotta do some gearing customization since Polaris doesn't go high enough. But looks stock, from a distance what we shoe-horned in there, is definitely not. Feel free to check out rednexcreations on here or Facebook. Kinda new to TH-cam but think you'll enjoy it a little
I think a 670 with stock clutch from fourwheeler would help if crankshaft size is same! Hell of a job tho! I want more power an want to go when i need to the chassis should be able to take it!
I always see you guys struggle with the belts to get on off. If you put belt on front/primary clutch an start belt on rear/secondary clutch then rotate the rear/secondary clutch inside half then pull belt up it will spread the secondary clutch an belt sill fall right in.
awesome build guys.....1 problem I see is either the back clutch has a bad spring, or the engines too far forward. Belt that far into back clutch is killing a lot of performance.
I can't remember did this come with all the fenders and body work if so would be nice to see that stuff back on their. And honestly not dam thing sounds like a 4 Wheeler .
If you want faster than a smaller rear sprocket is needed but you must remember if you do the front wheels will have a different ratio , I had lots of Polaris scramblers I had one that was 4x4 400cc 2stroke it easily went about 60mph stock other than a .80 over bore and 500cc 4stroke it went about 50mph but my scrambler 400cc 2stroke would beat the 500cc scrambler 4stroke by about 100ft in a 1/8 mile race but both have crushed some Honda 400ex in the 1/8 mile race. I had some trail boss 300cc and 330cc 4stroke they go about 40-45mph and the 250cc 2stroke trailblazer also is 40-45mph.
Isaac, install a racing tork inverter+670cc staged in a light ford fiesta like front wheel drive car with a blown engine! (adapt the tork inverter to the manual transmission shaft) =FUN
Hey I would say you might want to open up the exhaust it sounds like when you go to get on it that exhaust is a little restricted or holding it back a bit, try it see what happens. You already have the Air intake open so it has to go some where, I don't if you get what I am trying to say, just a suggestion that's all. Wish you guy's the best and God Bless. Been dealing with small motors a long time and that just what it sounded like to me!
I love how isaac always looks like the proudest dad watching jon ride stuff
He's old enough so you never know.
Allen McKinney how old is he
talk about a twist for april fools hahaahah @@allenmckinney9533
He's like in his mid 40's...He could indeed be Johnny's daddy!!
@@Alfred..E..Neuman Really? Looks more mid 30's to me! wow!
You have to tighten the secondary variator so that the belt is about 1 mm above the edge of the variator. The belt is way too low as it is now.
generally around 1.2mm but yeah...
was just going to say the same thing, with the belt riding that low in the driven clutch (secondary) the thing wont shift properly at all..
They just need to change the Drive to have a wide strap
They leave chains too loose as well. You lose power and delivery like that.
All we need now is 4WD!
U should put a motor bike engine in it.
I have a Go-Kart with a 500 Honda rebel on it
You guys inspire me you guys are awesome
Gonna need a bit more cc-age for that I think.
You need to send 12v to the front differential it's a magnet weird system and the 4x4 should kick in (I have a 2004 600 Sportsman)
These guys only have 2 engines but 500 frames of different makes models and configurations
So Issac and John don't think we have forgotten about the Indy kart. I'm personally hoping it's because you are hunting down something special for the power plant. (like a power bee) Love the builds thanks for the content gentlemen.
I have a brand new power been never ran
Or the little rotary from built break reapeat
I don’t think they are because Jon literally said he doesn’t like a high powered 1wd go kart
This channel is garbage now.
It will be a 420 predaslow like everything this channel has done lately
John if you start yanking the engines, you'll grow big and strong like Ike.
I think you could get slightly more top end speed and low end torque if you move the engine back slightly and allow the belt to reach full travel on the cvt. At idle the belt should ride at the top of the pulleys, and be nearly bottomed out at full RPM.
Mine at full speed on the clutch will be up a bit taller thane the clutch
maybe a shorter belt instead of moving it? Idk
When you cut the support for the cvt, now all the torque load is on the crank shaft end. Could be why the other engine gave out. Might want put some kind of support between engine and trans. If not, every time you apply power the crank is being pulled back on, putting a lot wear on bearings. Just a thought. Also like others have stated check for a high/ low on transfer case.
Can we get a go fund me page for Isaac's "rock paper scissors" skills
It always seems like he loses everytime
We need a gofund me campaign so they can get some FCR Carbs for their projects. .
maybe johns a mind reader @@Will-fr5du
Love yalls voids keep up the good work
400 polaris in high range will run about 60mph on the road. I think around 38-40 in low. Back in 2003 a friend of mine had a 400 sportsman I think. But that thing will smoke the lifted go cart. Great video guys I’m a big fan of the show
I wasn't interested in the tires until Isaac started modeling them 👍😎🇺🇸
Can't wait too go guys the Polaris looks sweet. Bring the gy6 yerf!!! I seen a glimpse of it awhile ago in a clip. 👍👍👍
Sweeney Sweeney lol so did I
This would be perfect for the Ducati engine
Sam Dittmar yes😂😂😂, let’s only blow the transaxle
YESSSSSSSS!!!!
Or 2 stoke snowmobile engine
Awesome project. Not in least crazy. Few of us can afford a new POLARIS anything. To take one ready for the bone yard and get it going again with an alternative engine gets us in the dirt as oposed to having nothing. I beats building one from scratch too.
I've had those 250 and 300 Polaris ATVs up to 60-65mph.
No the 350 goes 55 and not even a 250 sport quad can do that
@@user-xv2iz7ix5o Here's a video of a warn out Trailblazer 250 doing 53mph. th-cam.com/video/tnSJXsrUXW8/w-d-xo.html .
4:39 - 4:46 that noise !!! It reminds me of that 30's-40's cartoon when Mickey, Donald and Goofy are mechanics and Peg-Leg Pete makes them chase a squicking sound on his car ^^
Bring back isaacs vtwin motor cycle
He sold/traded it
@@luketeverino6085 that's so sad. It's a cheap street legal toy :/
Get it past 45 and then you can consider it a good four wheeler order the plastics for the polaris
my 400 polaris would do 50mph+ easy. I think you have some improvements to make, that should be faster than that. edited to say i think the pesron with the comment about not using the CVTs full travel might be on to something.
Agreed. Something is up with the cvt.
The travel thing could be an issue.
And , whats the stock engine rev to, vs the 420 ?
Id bet it revs alot higher than 3600-4k
I think they may have had it in low gear.... I know my 500 sportsman had a low and high and my top speed in low was 35 my top was 55-60 I’m a big guy so could be different for them
Leon Hosier this was actually my first thought. But then I thought there was no way they wouldn't have known. At least I'd hope they knew there was a high and low.
I have that exact hawkeye. They are geared to be farm quads. Mine barely does 30. Whereas my scrambler that is the same size does around 60.
Theres nothing like a friend who says "yes! I think we could do that. Everyone i know says "meh! To much work" sometimes its not about the hours put in.its about the hours of fun you get out of it at the end.
Keep up the good work guys i love this build and the golf kart videos
It will do 50mph stock. Try doing a fmf/dg muffler its a little smaller and it won't resonate heat, and help with the race carb, you guys just keep doing great stuff,keep having fun guys!!!!!!!!!!
Crazy how it sounds like a normal atv with that exhaust on it. Doesn't sound like a 420cc at all.
It sounds a little throatier than my sportsman 400 did when it still had stock exhaust, they just have to fix their clutches big time
Forgive my ignorance, but I'm not understanding. Lots of ATVs come with engines this size and smaller. Why would it not sound like another ATV?
RS7JR Polaris just has this one sound that others don’t have its hard to explain. Watch actual Polaris exhaust sound then this 😊
Definitely doesn't sound like a normal atv too much clanking going on it sounds like any other go kart to me.
This has been thus far my second favorit project coming after the dirtbike which i would like to see get finished.
please tighten the valve lash on the 420.....
They SUCK at setting the proper gap, easily double over spec.
@@Stanton_High loosing a lot of power because if it
@@Stanton_High yep LOL. It's not just a little off either, I'd bet u could fit a penny or two between the rocker and valve tip
@@Stanton_High I don't even use feeler gauges on the small engines, do it by feel
@@joshmeyer5280 hahah same here!
Just a tip for changing the belt on it. Put a pry bar or screw driver between the secondary pulley and spread it open. Makes changing it so much easier. Won’t have to keep unbolting and bolting.
"we got this 2017 Chevy Corvette, engine is fine" *let's put a predator in it*
DannySumo R. lol “ we have bought this brand new 2019 can am outlander 1000 and it just needs spark plugs so we are gonna put a 212 in it”
now your just being silly...they would definitely put four Predators in it, all under the hood with three jack shafts...i cant wait
@@philtripe they were just making fun of the fact that cars and cameras puts predators to replace good engines that just need an easy fix, sure predators have torque, but no speed they where meant to be on a log cutter and wood chipper not on a go cart or quad
@@kevinmontoya7318 haha i think he is kidding too bro.
Haha haha haha. That's sooooo funny......m.
Because my drive is 12+ hours, I'll be starting down about 5AM Friday morning, showing up Friday afternoon ~5pm. All I have is an old but customized Baja Warrior, w/stage 1 - 212, CVT, camo paint!
What oil do you use in your engines?
Ive also had problems with these preds, some times you dont get lucky an china doesnt clearance the rod to the crank right which is more than likley why the stocker 420 froze up
Man.. One of these days I'm going to build something and come out to play at one of your meets. The video from them always looks so fun!
It's about as fast as a 90cc children's quad. Not being an asshole.... but it's true
Stock, I had my Explorer 300 up to 51 when I was a kid.
Morte Parla I think its governed so it can’t rev out plus I think this build is more for their torque.
Morte Parla yeah the stock motor must have had a ton more power or it’s something to do with their power delivery
Most likely it has some belt slipping still or it’s a weaker engine
@@cdiienno they still have the governor hooked up so it's just not reving up as high as the factory engine. If they take off the governor and set it up for higher rpm it'll go TONS quicker.
also, the factory engine for that atv spun up to 5000+ rpm from what I can tell.
Lol yeah totally agree, really don’t know why they mess with these crappy engines
Nice A spiderbox build!. Mine had a 420cc and it was a beast. I sold it to go to a 670cc powered Roketa GK-06 I'm currently working on. I wont make it to this Mini Mayhem but I'll be trucking down from Boston for the next one.
Please build some mad max style bodywork for the atv! It looks so naked with no body
Its naked and proud
Yerfdog spiderbox is what it looks like. 4wheeler turned out nice, cant wait to see the next video on it.
End of the day it’s faster then a Walmart kart and has 4x4 and should have tons of low end so I say a win all around
I'd bet you those cheap power wheels that kids drive are way faster and you can up the battery and get longer life and more speed
Legend has it CnC`s responds to messages. One problem I see is your clutches are not matched. You have a 780 primary clutch with a stock Polaris secondary, change out secondary to a 780 or change primary to the stock Polaris clutch. On the secondary the top of the belt should be sitting in the groove flush or just about flush with the top of the pulley. This is maximum low end torque, right now your belt sits too low and youre losing low end torque and top end power because by the time the primary has fully ramped up at max rpm the belt has barely moved in the secondary...basically right now its like youre starting out in second gear (using a three speed gearbox for example) all the way thru your power band and then to third gear. Next off check belt tightness, you run a straight edge from where the belt sits at its lowest point in the primary to its highest point in the secondary and push on the belt at the middle. The deflection shouldnt be more than an inch +/- a quarter of an inch.
Jon I almost dropped my fone when u said "2/10 of a mile 😂🤣😂🤣 in 35 yrs of living I've never heard some1 refer to distance that way .1/8 1/4mi 1/2mi 3/4mi maybe,,.. I'm using that tomorrow at work 😎😎👌👌
BighomieJ5x - in my 15 years of living I’ve never seen someone with that bad of grammar 🤣
In the olden days (before GPS), when giving driving directions we would use tenths of a mile, because car odometers were in miles and tenths of miles.
I have a 2000 sportsman 335 and in high gear it tops out around 45mph so mid 30's is not a bad starting point. If it is like a lot of the other polaris quads the hard part will be getting the 4wd working as they use an electric controlled locking system in the front hub to engage and disengage with the front differential.
Can you guys use something different than a predator in that thing, how about the original one
Right
It would cost almost $800 to fix
They should just find a used motorcycle engine and throw it on. Way better than any predator engine.
Was gonna try to attend this time around but just wrecked my baja 200 just yesterday and ripped my hamstring so wont be making it this time. But i have plans to attend one at some point. Great vid as always keep it up.
Random vehicle:
Cars and Cameras : predator engine swap
Bring back the 420 Murray!
Hey name is alex watched all your videos really like em and all the info I only have one request if you guys could possibly do a x1 pocket bike engine swap cause you guys haven't have a pocket bike video and I think (ITLL BE FINE) lol
Don't EVER take advice from these guys! Go watch real mechanics that actually know what they're doing.
Needs higher flowing exhaust too, gets too hot because it's a big restriction..
and valve adjustment!
I swore that "blow up" was an April Fool's joke.
nah it siezed
Why would they use a different engine though?
I thought the same. Those metal flakes in the oil looked pretty real though.
Looking forward to you guys increasing the performance, great work.
Hey I’m 14 and y’all are the reason I built my own go kart
Keep it up bro you'll get very familiar with em and find what you like and what you dont
Exactly the same here, I'm 12 and I just bought 4 gokarts and 5 engines for 250$, just got an 8hp Briggs to run too!
I love this build, doing the same thing to my sons quad when motor blows up , great job guys love your channel
That polaris would go faster than 40mph stock cause i have a 150cc stock and i had it toped out 35 and if that had a 300 on it you looking about 50 60 mph
It's a 4x4. My polaris sportsman 500 goes around 50mph with 28" executioners
My foreman 500 goes around 50 or 60 with 26 inch tires
Fuck Polaris
Don’t ask me a question!. I have my rights to say that.
There not cheap hard k fucking work on they break with dumbass people that have 40” BKTs.
Like cmon I ain’t fixing no Polaris wheelers anymore!
Unless u gjve me 2k
@@gavincrow7374 Polaris is good everything breaks and you were in another comment section saying it was your dad that worked on atv's and not you
dirt bike addiction Polaris is shit. Yeah we work together bud. We worked on one broke cuz Polaris is shit, fixed it, couple days later, broke again, shit isn’t cheap bud, try working on one yourself and see the prices with no discount or anything
I have that same yerfdog.. I like it a lot, but the person I got it from completely messed up the wiring. I have been getting headaches trying to fix how they messed it up (the cart runs, you just have to start it with a screwdriver). I'm looking forward to the videos on that cart. I hope you keep the GY6 in it.
Iv been watching since the original rat rod wagon video I love this kind of stuff keep uup the good work
These re power vids are so damn cool, don’t throw it away, modify it and party on ! Cool vid guys thanks
Well... I guess the 420 engine blowup wasn't an April fools prank after all😂
I have a Polaris Hawkeye.
Its a good atv i have done 45mph with the carburetor tuned perfectly.
You should put the 900cc Ducati engine in it give that a rip
Hahahaha. Wow, I cant beleave that Isac lost again. And good luck at the Oregon play date. Was going to build somethi g to take and meet you guys but well, life happens. Sorry im going to miss you all. Enjoyed most all your build shows.
Don.
I cant wait for the yamaha blaster video 😊😊😊😊😊😊😊😊
Unless they engine swap a predator lmao💀
Great video fellas enjoy watching everyone y’all make 👌👌👌👌
Slower than a 150cc chinnese atv 😂
yeah and a polaris makes well over 60 from the factory 😂
Yea slower than my 150cc 4 speed offbrand atv what a horrible build
I bet it'll out climb your ATV it's meant for affroad not to be fast
By the looks of it mine has waaaay more torque the only advantage he has is its 4×4 i bet mine will still out climb him i put huge bubbly wheels an tires on the back of mine there from a three wheeler
or maybe the sprocket isnt tuned for the 22hp it has? Ive had a chinese 150 and they have about 7-10 horses (brand). To think of it. This has more power than a blaster 250. With stage two and a fixed sprocket this atv will be a beast. This machine could be doing 60 no problem
Cool build. Nice to see what alternatives you come up with.
look into a panzer garden tractor for a rear end for the rail
man glad you guys are sticking with those predators........
I just wanna hear ike say "damnitt bobby" just once lmfao
I was getting good wheelies on a "lightly" modified Polaris MV7 700cc. I had to hold the brakes and rev to the brake limit, then punch the gas and release the brake. It would tail stand off the line.
Diesel lawnmower plz :D
6 giloo diesel anything in general
Ya then turbo it after with the 21mm turbo
I have the polaris 440 4 stroke and it does about 45 mph max. Great job, I've been curious to see this happen. --buy a header flange! Get that clutch working right. It might look like it when there is no load, but I don't think It's working right. I would make that primary clutch engage Waaaaay earlier too. That engine should have the torque. I have a stage 3 420cc lifan in a buggy I built. It shreds from low rpm if I set the clutch that way. I think that 4x4 would be far more fun if you could go lightly as well.
Isn’t it ironic how the video on the blown 420 was on April fools day?
I agree !!!!! the belt is to loose I had a 1999 scrambler 400 and had alot of problems with it smoking belts cuz the primary springs were worn out
He just wanted to ride it before it got broke , man.
Isaac reminds me of Rickey Bobby from Talladega nights but a lot smarter. You guys rule btw.
I think you guys are in low gear it should have a high as well
Wyatt Yates predators only have low gear bud.
@@gavincrow7374 no I'm saying the gears on the ATV usually there's forward high low neutral and reverse
cmon man
I've topped one off at about 50 mph...Stock. Also there's a switch on the handlebars to switch into 4x4 you will need to hook up to get that going.
Not to be the umpteenth person to say this but you guys should have rebuilt the Hawkeye 300 that was in it l
mhmadgenious they said it would cost $800 or something like that. not worth it.
@@bwxmoto I call bs I rebuilt one of my dads for about 250
@@bwxmoto Plus everything would have worked, the dash, the 4x4, and sooooo much more speed
mhmadgenious I’m sure all engines have exactly the same things wrong with them and require exactly the same parts to repair. So you must be right. 🤔
Little tip, if the belt doesn’t have it done already, take the top off of the belt with a grinder to make them flat, it gives the gearing more bottom end torque
Another slow lawnmower engine. Original motor would have been way faster. Fail.
Always fun watching your builds.
My 212 with stock carb and exhaust on my go cart is faster
I had a 98 Polaris explorer 300, 300cc two stroke, same set up it would get 38/40 no problem, top speed was around 45 but it struggled to get there, the quads were not built for speed, they were built for torque being 4WD, check the gear ratios on the axles, the original 2 strokes spun up higher than the 420 does, probably why it seems a bit on the lame side...
It is 4 wheel drive and has a trailer hitch, the ultimate cart toe rig ! Take it to Bosko and rescue every broken ride.
It's definitely not as fast as the stock engine, but it still looks fun and it's impressive you guys pulled it off.
Hey john that yerf dog is a spider box I have one too if the engine is in good condition that sucker is fast mine we pulled out of a guys farm told us just to get it out of his site if you have any questions on it just ask I’ll be happy to help with it...... probably won’t need my help but Incase you do I’m around
I like how you took a 400cc quad, put a tuned 420cc engine in it, and actually made it slower.
Crazy cool potential hope you have patience and get safe before u try riding this harder
Was gonna say, We had luck through advance auto parts on tracking a belt down for a build we did. Delco told us they didnt make it, guess the belt manufacturer lol. But looks like you got that solve. Highly recommend putting a guard on the belt, tends to hurt a bit. We have a Polaris 250, but definitely does NOT have the 250 in it. Atm we're running 64mph, gotta do some gearing customization since Polaris doesn't go high enough. But looks stock, from a distance what we shoe-horned in there, is definitely not. Feel free to check out rednexcreations on here or Facebook. Kinda new to TH-cam but think you'll enjoy it a little
We get up to 64mph in like 2 seconds on grass.. so theres that plus side of the top speed lol.
Ike you shouldn't have just left John alone because he new he was going to ride first lol can't wait for the next one on this one
that ATV runs pretty good nice job on that
I think a 670 with stock clutch from fourwheeler would help if crankshaft size is same! Hell of a job tho! I want more power an want to go when i need to the chassis should be able to take it!
We have one from when I was a kid it could do 50mph down hill with the wind. The dealer also put heavier weights in the primary clutch
Fuggin dorks i love you guys. Dont ever sell out.
I always see you guys struggle with the belts to get on off. If you put belt on front/primary clutch an start belt on rear/secondary clutch then rotate the rear/secondary clutch inside half then pull belt up it will spread the secondary clutch an belt sill fall right in.
Lost it at Isaac modeling the shiny new wheels!
awesome build guys.....1 problem I see is either the back clutch has a bad spring, or the engines too far forward. Belt that far into back clutch is killing a lot of performance.
Ike is the turf master. My body is ready.
I can't remember did this come with all the fenders and body work if so would be nice to see that stuff back on their. And honestly not dam thing sounds like a 4 Wheeler .
Did you follow the break-in procedures listed in the manual
Just so you know there is a way to spread the secondary clutch apart to get the belts on and off
If you want faster than a smaller rear sprocket is needed but you must remember if you do the front wheels will have a different ratio , I had lots of Polaris scramblers I had one that was 4x4 400cc 2stroke it easily went about 60mph stock other than a .80 over bore and 500cc 4stroke it went about 50mph but my scrambler 400cc 2stroke would beat the 500cc scrambler 4stroke by about 100ft in a 1/8 mile race but both have crushed some Honda 400ex in the 1/8 mile race. I had some trail boss 300cc and 330cc 4stroke they go about 40-45mph and the 250cc 2stroke trailblazer also is 40-45mph.
Isaac, install a racing tork inverter+670cc staged in a light ford fiesta like front wheel drive car with a blown engine! (adapt the tork inverter to the manual transmission shaft) =FUN
Hey I would say you might want to open up the exhaust it sounds like when you go to get on it that exhaust is a little restricted or holding it back a bit, try it see what happens. You already have the Air intake open so it has to go some where, I don't if you get what I am trying to say, just a suggestion that's all. Wish you guy's the best and God Bless. Been dealing with small motors a long time and that just what it sounded like to me!
That 4 wheeler does 50+ No problem with the factory motor.