Bro you see how big that engine is I see a bobber full sized motorcycle but a dirt bike hell nah😂 I’ve seen it in person it’s almost 2.5x the size of a 212
Thinking of doing a build like this for a long time predator swapped Polaris atv or a go cart 670 hobo or delete billet parts high compression aggressive cam ect maybe one day who knows
I got a 670cc on an old Carter cart. But when I crank it my torque converter engages and wants to roll, I’ve tried unscrewing throttle but it still rolls? How does your torque converter not engage? Is there a space sitting under neath the belt?
So mine engages too honestly and I've found that you need to try to get it to idle as low as possible and with my stock carb it's hard to do. I still haven't found that sweet spot with the jet adjustments. So it'll still grab a little. I may have to consider doing an aftermarket carb
Nice! I toyed around with a 16hp v-twin years ago. Had it on both a mini bike, and a couple go-karts. I never upgraded past a series 40 comet though. I'm curious what clutch your running, and how its working out?
That's crazy to put on a minibike! But the torque converter kit is the 780 series kit from gopowersports and it has been working well! I did change the torque converter to a Comet214707 for better grab and it does grab a lot better
@@kennyskarts I'll try not to confuse, but when you go full throttle, does the shift hold consistent at a set rpm? Problem i always had with the smaller clutches was the gearing. Regardless of how id adjust the weights and springs in the primary, it didn't work right if I geared it much faster than 40 mph. At 65mph they would shred belts consistently. The helix angle and spring pressure is critical I learned, needs to coincide with gearing.
@@CK-mf6du the shift sounds pretty consistent in rpm then it hits a point where the rpms are able to climb and gets to top speed in its final gear. Unfortunately yes you have to have short gearing to save gearing. I'm using a 72 tooth axle sprocket and 10 tooth jackshaft sprocket and that's as short of gearing as I can go and still maintain a top speed of about 50mph with governor removed in my motor and upgraded valve springs. Dang that mini bike definitely hauled lol
I also figured out how to adjust the driven pulley properly and it's been a noticeable difference and I have it set to have way more spring tension and will be better for the trails and offroad. Hopefully uphill too without burning belts and also while having a passenger
The headers are from a kit on ebay. You can google 670 predator header kit and it should pop right up. The mufflers are called reverse cone and I got them off of amazon
@@Gokywildcats11 well it all depends on gearing. Shoot, you could probably gear it to 60 but your acceleration would suffer. I've heard you can do stage 2 and bring it up to like 26 hp or something
okay thanks. I’m trying to run a #50 chain with it but it’s quite difficult to find a #50 sprocket that will go with the torque converter. Do you have any sites or places where I could find something like this?
What I would do is take the size of your torque converter jackshaft sprocket which is probably something like 3/4 and just search for a whatever tooth 50 chain sprocket. Also C type sprockets have the teeth centered. Just something I learned on my own
Hey buddy what is your sprocket setup? I have the same setup with 12/60 sprocket setup and my belt keeps slipping. Any help would be greatly appreciated.
Hey man my setup is the 780 torque converter with a 60 tooth axle sprocket. I don't know the tooth count of the torque converter pulley though but it's what's in the kit. I had belt slippage before with the original axle sprocket but I don't anymore. I'm wondering, what's your wheel and tire sizes?
@@kennyskarts my tires are 20.5 inches tall. Just normal size tires. I tried adjusting my torque convert from setting 1 to 4. 4 seems to do the best but the belt starts slipping. The more I drive it the worse it gets. Any suggestions would be appreciated. I have the comet belt it came with. I’m also running the same torque converter. Did you change any of the springs on the torque converter or drive pulley?
@EugeneTorres-ib7hk the only adjustment I had made is I removed the weights in the torque converter to grab later than sooner because I can't get the idle any lower and it was wanting to grab too much and roll. Maybe you need more RPM? I removed my governor and have upgraded valve springs
I appreciate the comment but that's false. You can have individual headers. In this case I have two individual headers with a muffler on each. Headers do not have to scavenge. Not sure where you got your information from.
@james10739 look up header pipe. Also a zoomie is a header. A simple Google search would give you this information. Not sure why you're so adamant on correcting me when my sources are saying you're wrong
I got a 670 engine with the 507 cam and springs upgrade from performance 670. I got huge plans going to build either a bobber or a dirt bike with it.
Niiiiice
Bro you see how big that engine is I see a bobber full sized motorcycle but a dirt bike hell nah😂 I’ve seen it in person it’s almost 2.5x the size of a 212
I just built a mini bike with a similar engine .
You should see people's faces in the town I live in .
The fake plate on it says 5150.... 😂 Lol
@@jamessignorelli852 Nice
@@zapo4867 I've ridden a mini bike with a 670 on it, adjust the frame slightly and it's actually quite simple
Oml this is the build I almost want. I planned and drew out a buggy build and it almost looks like this
I like simple and this worked out for me! You can check out my tiktok and Instagram for more footage! Or dm me if you have any questions!
Bro, that thing has so much more potential with a gearbox transmission thither then a cvt
I know man! I went with the simplest build but that does not have the most potential! I've considered attaching this to a polaris transmission!
Love the nosie to my ears ❤
We gotta show our brotha some actual exhaust clamps.. those will work, but.. 😂
Know of a better clamp for 1.25 inches?
@@kennyskarts for what it’s worth 9 months later…. Buy 2 “Shaft Collar Clamps” they will look significantly better at least.
Sounds really good 👍
Thank you!
I'll take 2.
Sounds llike a harley
Yes! I love it
I'd like to have a pass outside my local police station riding this.. 👆🏼🏎️
That would be a sight to see 😂
Nice video friend
Thank you!
Thinking of doing a build like this for a long time predator swapped Polaris atv or a go cart 670 hobo or delete billet parts high compression aggressive cam ect maybe one day who knows
That would be awesome! Definitely show us how you end up doing it!
the torque converter is as big as my clutch on my 420 💀
Crazy ain't it lol
@@kennyskarts yea lol
Two into one exhaust will run better than the dual setup. Helps with scavenging
@@nickreagan3083 maybe one day I'll do that
Probably need a bigger chain
@@codemaster3696 surprisingly this 420mx chain has not given me any issues!
So cool 😎
Thank you!!!
Is there a video of this build? Love to see it!
Not yet! I'll definitely have to make some videos on it!
@kennyskarts8031 can you tell me what exhaust
@joeplayer2802 the headers are from a kit on ebay for this motor and the mufflers are reverse cone mufflers for 1.25 inch diameter
I wonder what that will do on a Honda Odyssey fl 350
It could make it sound pretty good! I feel like it adds bass and takes away the raspiness
Would be pretty long exhaust with a expansion chamber an all
Sounds Great !
Thank you!!!
What torque conveter did you go with? I would love to build a pan head frame with this and a super charger...
This is the 780 series torque converter from gopowersports.com!
What mufflers are you using?
12 inch reverse cone 1.25 inlet from Amazon!
@@kennyskarts ok thanks!
What clutch did you use? I just grabbed a manco conquest cart and the same engine.. I’m only finding 212cc centrifugal clutches
For a 212cc you need the 30 series torque converter kit and people usually go for the kit with backplate. My setup uses the 780 series
I got a 670cc on an old Carter cart. But when I crank it my torque converter engages and wants to roll, I’ve tried unscrewing throttle but it still rolls? How does your torque converter not engage? Is there a space sitting under neath the belt?
So mine engages too honestly and I've found that you need to try to get it to idle as low as possible and with my stock carb it's hard to do. I still haven't found that sweet spot with the jet adjustments. So it'll still grab a little. I may have to consider doing an aftermarket carb
Where can I get a clutch setup like that?
You can get it from gopowersports.com! It's the 780 series kit
Nice! I toyed around with a 16hp v-twin years ago. Had it on both a mini bike, and a couple go-karts. I never upgraded past a series 40 comet though. I'm curious what clutch your running, and how its working out?
That's crazy to put on a minibike! But the torque converter kit is the 780 series kit from gopowersports and it has been working well! I did change the torque converter to a Comet214707 for better grab and it does grab a lot better
@@kennyskarts I'll try not to confuse, but when you go full throttle, does the shift hold consistent at a set rpm? Problem i always had with the smaller clutches was the gearing. Regardless of how id adjust the weights and springs in the primary, it didn't work right if I geared it much faster than 40 mph. At 65mph they would shred belts consistently. The helix angle and spring pressure is critical I learned, needs to coincide with gearing.
The stretched Rupp mini bike with a 16hp v twin did turn a few heads, lol.
@@CK-mf6du the shift sounds pretty consistent in rpm then it hits a point where the rpms are able to climb and gets to top speed in its final gear. Unfortunately yes you have to have short gearing to save gearing. I'm using a 72 tooth axle sprocket and 10 tooth jackshaft sprocket and that's as short of gearing as I can go and still maintain a top speed of about 50mph with governor removed in my motor and upgraded valve springs. Dang that mini bike definitely hauled lol
I also figured out how to adjust the driven pulley properly and it's been a noticeable difference and I have it set to have way more spring tension and will be better for the trails and offroad. Hopefully uphill too without burning belts and also while having a passenger
Is that a 40 series clutch? Or something heavier duty?
It's the 780 series so one step above the 40 series
What type of torque converter did you use for the predator?
It's a 780 series torque converter
What is the reference of your cvt transmission?
780 series torque converter from gopowersports.com
What kind of muffler and what kind of headers are those and where can I get this type of exhaust setup?
The headers are from a kit on ebay. You can google 670 predator header kit and it should pop right up. The mufflers are called reverse cone and I got them off of amazon
Where did you get that torque converter? I need to find one for my project
@@HamTheHobkin gopowersports.com! It's the 780 series kit
@@kennyskarts I'm planning on doing what you did but on a adult mini bike from harbor freight
@@kennyskarts And thank you! I appreciate it
@@HamTheHobkin no problem! Man that would be sweet! Definitely put some videos up on that project!
What side belt you run ?😊
Belt size is 1 3/16
juggernaut pulley?
No sir it's a 780 series torque converter
What kind of clutch is on there
That's a 780 series. It can be found at gopowersports.com!
What type of road speed could this produce mph, what.can you do to a stock motor for.more hp
@@Gokywildcats11 well it all depends on gearing. Shoot, you could probably gear it to 60 but your acceleration would suffer. I've heard you can do stage 2 and bring it up to like 26 hp or something
Is that a store bought or custom frame
@@Gokywildcats11 bought it used but it's a Fox Carbide
Hey what transmission are you using
It's the 780 series torque converter from gopowersports.com!
Stock carb ?
Stock carb with slightly bigger and equal sized jets
Is there anything else done to it ?
Governor removal, intake, exhaust, oil cooler, oil catch can and that's about it so far
Oh and bigger jets
What type of torque converter did you use?
It's the 780 series torque converter from Gopowersports.com!
Thanks! I’m working on making a cafe racer with a 14Hp Kohler magnum engine and I’m thinking this is a good option to use
You may want to do some research but I think the 40 series would be better suited for that motor
okay thanks. I’m trying to run a #50 chain with it but it’s quite difficult to find a #50 sprocket that will go with the torque converter. Do you have any sites or places where I could find something like this?
What I would do is take the size of your torque converter jackshaft sprocket which is probably something like 3/4 and just search for a whatever tooth 50 chain sprocket. Also C type sprockets have the teeth centered. Just something I learned on my own
Um is the engine spinning the wrong way?
Nope engine is spinning the correct way
yep
How much power is it pushing?
Haven't dynoed it but probably something like 25 hp
@@kennyskarts is there a lot of performance parts? for the engine because I’m planning to buy one
@@jacobsteez193 Check out performance 670, they have a lot of upgrade stuff but it does get pricey!
Hey buddy what is your sprocket setup? I have the same setup with 12/60 sprocket setup and my belt keeps slipping. Any help would be greatly appreciated.
Hey man my setup is the 780 torque converter with a 60 tooth axle sprocket. I don't know the tooth count of the torque converter pulley though but it's what's in the kit. I had belt slippage before with the original axle sprocket but I don't anymore. I'm wondering, what's your wheel and tire sizes?
@@kennyskarts my tires are 20.5 inches tall. Just normal size tires. I tried adjusting my torque convert from setting 1 to 4. 4 seems to do the best but the belt starts slipping. The more I drive it the worse it gets. Any suggestions would be appreciated. I have the comet belt it came with. I’m also running the same torque converter. Did you change any of the springs on the torque converter or drive pulley?
@EugeneTorres-ib7hk the only adjustment I had made is I removed the weights in the torque converter to grab later than sooner because I can't get the idle any lower and it was wanting to grab too much and roll. Maybe you need more RPM? I removed my governor and have upgraded valve springs
@@EugeneTorres-ib7hk I'm curious to know if your brakes are seized or something like that. Even consider your bearings may be shot?
@@kennyskarts axle bearings are new and the brakes are releasing. I can push the go kart in the driveway with ease.
Whats the gearing ratio?
I'm unsure of the ratio but I have the stock teeth sprocket on the 780 driven pulley. I also have a 60 tooth sprocket on it now and it will do 50 mph
That's what I have on mine. 12t and 60t on 20 inch tires. Runs about the same.
@@Mrt4247 nice! You should post a video so we can see your kart!
Thats not a header its 2 zoomies with mufflers a header combinations the pipes for scavenging
I appreciate the comment but that's false. You can have individual headers. In this case I have two individual headers with a muffler on each. Headers do not have to scavenge. Not sure where you got your information from.
Well a zoomie is not a header an exhaust manifold is not a header
@james10739 look up header pipe. Also a zoomie is a header. A simple Google search would give you this information. Not sure why you're so adamant on correcting me when my sources are saying you're wrong
Dyno?
Negative
@@kennyskarts still BaD Azz. Sounds like 500 HP.
@user-vt4dn7te9r thank you man! Sounds fast and only produces 23 hp stock lol