What a great uncle you are. You are sharing your knowledge and building confidence in your nephew. I can see a lot of youths, like your nephew, watching your video and being encourage to try this themselves; "It is easy, and you can do it." is all they need to hear. You are very direct and clear in your explanations, which is critical; and you never talk down to your audience, even when talking about the most simple of mechanical concepts. A commendable job.
I am 54 now, when i was 44 I got the urge to go kart race, did so for 4 years, A 6.5 predator engine can put out 15 -19 hp and turn 7500 rpm alot easier than you think, If you break in the engine and do it right, those engines will last a long time and be very reliable
Cliff P if your sure the tap and bolt are correct you could use it, I would prefer (if possible) to just clean it by running a bolt in and out with some penetrating lube to avoid the chance of crosscuting the treads with an aggressive tap As for mods you can buy a stage one kit or make your own what you need to do is remove the governer gear and arm make 1" diameter exhaust about 350mm long expanding to 1.25-1.5" 100mm-150mm long at the tip, drill the carb main jet to 0.8mm and add a high flow air filter and adapter (these are reasonably priced) this will give you a decent power increase I would also add additional crankcase ventilation and filtration system
@@josephharmon3851 I've been kart racing since I was 9 and I'm 26 now. My built predator 212 performa the same as my built gx200's. Your opinion is trash
@@KartFab I installed my performance kit on my mini bike and my go kart, and both of them sound like there is a leak of compression from somewhere like a hissing sound, any advice as to what it is?
It's crazy how there is an air filter, but it needs spray to filter dirt. Ironic but makes sense because the spray is sticky and will sure catch those little particles. By the way awesome video I just traded my 250 dirt bike for a Murray full suspension dune buggy type go kart and it already had the stage 1 upgrades! I think it has a different piston too. Have a good one😁
@@deucedeuce4223 put a ziptie through the spring on the governor rod that goes to the carb lever. It won't let the spring stretch open and it'll rev higher! Did it last wknd n it rips now and I didn't even get my stage 1 kit put on yet
Hey excellent video! gotta tell ya if I am having a "tough" day or just need something to do for a few minutes I jump on my Doodlebug Hemi and blast around the neighborhood a few times, mind you I have a 69 Camaro 4 speed, an 86 C-10 shortbed & a 48 Harley Davidson 1200 sitting in the garage! so yeah doing this mod on something I'm already having fun with is a no-brainer! Thanks again!
Great video, your nephew did a great job! I like that you included him to show kids they can do it themselves. Good job, great video and that little thing rips!!
Just got a good go kart frame for 60 bux and got a 212 predator from harbor freight. Waiting for mechanic to assemble everything then I will be upgrading engine in short order. Thanks.
Typically that comes with the kit. I buy mine from ombwarehouse.com and it's always in a baggy tucked inside the filter with the filter adapter nuts and the hex screw to hold the bracket in place.
Great info. I've got a 79 cc I want to help the performance on. What stage is it that you pull the governor? OMG that kid needs to be wearing pads, helmet, gear, mouth guard etc...Ready for stage II
Love the videos! Question? What size jet or what size difference jet did you install to create proper air to fuel ratio ? We have a predator 301cc... custom exhaust and the k&n style air filter. Any help would be appreciated
As soon as I seen them breather on the gas tank and valve head I knew this is what I needed to see no one and I repeat no one shows that in their video
Hi, love what you do and full respect! I have been building high-performance motorcycles since the 80s. I happened upon a free Subaru 170- 6 hp setting for trash pickup on a stump grinder..Wow, you have got to do a build on one of these! Overhead cam, giant intake and exhaust ports, high-lift cam and a big-bore short-stroke with a hefty con-rod! It is built like a Honda XR engine! If you want, I can share some pics! I plan to get 15+ HP out of this reliably! Also, Super-lightweight.
I got a 212 with 22mm mikuni and 22 pound valve springs with header what is my rpms and top speed on a Baja worrier with torque convert thank u my friend love the videos
Awesome video I have a go kart I wanna get fix up and don’t know much about this video helps but I would wanna put something a little bigger and faster any videos on higher stages??
I’m trying to get the same answer, I have looked at all of the stage 1 kits from gopowersports.com and ombwarehouse.com. I have come to the conclusion that the jet size in the stage 1 is a .038 jet, I believe the stock jet is a .028. I have a handful of stock jets laying around so I’m going to hand drill my jet to .035 and see how it runs, if I need to drill it more I’ll probably go up one MM at a time all the way to .038 until I find the sweet spot! Hope this helps dude, good luck!
Great video! I plan on doing the same to my engine but I need to keep the noise down where I live. Should it still be rejected if I plan on putting a restrictive muffler on to quiet the engine noise?
So you are saying that a cylinder head that flows 65-75 CFM with a carb that flows 88 CFM is somehow restricted by a dust cover that flows around 500 CFM? Ok.
okay i did a review of your video's im sorry i missed the jet change was drinking a little and spaced that part but still may want to look into a jet kit for that thing still sounds like it need a little bigger one just saying!
Hiciera un vídeo de motor estacionario pero con carburador de moto 150 o 200. Como se adapta y especialmente ese brazo donde por dentro está ese piñón de plástico si se anula o se deja ahi
If you bought this exact engine, check your compression. And read this that I discovered. I bought the same exact engine for a big 2 person go kart, It ran fine for 10 hours, then lost power. After checking the compression on it, I was sad to see it only had 52 lbs. I took off the head, piston, checked the valves, piston, rings, gasket, and all seemed ok. I took the vales out because one seemed a little harder to push through and sanded with 600 paper. After putting it all back together I reached the compression and still had only 52 lbs instead of the 120 (8.5) it is suppose to have. NOW THE SHOCKER!!! I also bought a brand mew 3200/40000 watts generator, predator with the same exact engine. I had only started it when I got it and used it for about 20 minutes. I took the spark plug off and checked the compression. I was shocked to see it had the same 53 lbs as the other one. So Im wondering, it Harbor freight selling this engines with only 52 compression and know it or that is going on. With this little compression the engine is only making about 3 HP or less. Id like to have people with this engine check their compression and see if they also have a weak 1/2 compression as I do. If so, then we are getting the shaft and been ripped of. But worse the engine is not performing the way it is advertised and is breaking the law. Both harbor freight and Predator for making them this way.
The camshaft has a compression release on it so you can easily pull start it. Your compression meter will not give you any meaningful reading. If you want to see if you are getting the proper seal, do an actual leak down test. Thanks and have a good day.
@@lilbbbbbbb the air intake limiting factor is a 16mm hole in the carburetor that restricts air flow to 45 CFM, not the air filter cover that allows approximately 500 CFM of flow through it. It just traps more dust to keep the air filter from clogging up too fast. Cheers.
Ok, I need +KartFab opinion. I want to buy a Stage 1 kit for a rear tine tiller application. My tiller had a 10 hp Briggs, so get me 10hp out of the Predator 212cc and I'll be happy. My question is the exhaust. Can I have a more modest length exhaust? This Horse has a tight area where the stock exhaust was flush to the engine. I can't have it sticking out 2 feet or something. The intake might be tight as it is! Thanks for the great video. I want one.
Yeah there are multiple choices for exhaust. You can just cut off the end and put an RLV muffler on it too. If you cut the exhaust too short with no muffler, it could warp the exhaust valve.
I wasn't exactly going to cut it *that* short, LOL. I found a seller that has an exhaust that's for some kind of boat or I don't know what. It appears a lot shorter and has a screw-on muffler. I am going to try that kit. I guess if I have to cut down the pipe, a bolt-on muffler might work on the cut end? My ideal muffler would point "up" somewhat or turn down for noise reduction. I wish the performance parts websites showed the installed finished look from a few angles.
I wonder how many kids your nephews age that don't know what clockwise or counter clockwise mean? Many of them haven't grown up around round (analog) clocks and have no idea which way a clock turns...LOL I hear the shop teachers complaining your nephew wasn't wearing safety glasses. One note, I have no idea what material the air filter adapter is made out of, aluminum or plastic, you put a drop of Loctite on the choke lever retaining bracket screw, Loctite will attack many plastics, if its aluminum you are fine. Never use Loctite on any plastic, they do make a special product that is plastic safe, good luck finding it...
When you reinstall a jet how big of a deal is it if it’s a little loose or a little tight? Will one turn too loose affect it? And will one turn too tightv
What a great uncle you are. You are sharing your knowledge and building confidence in your nephew. I can see a lot of youths, like your nephew, watching your video and being encourage to try this themselves; "It is easy, and you can do it." is all they need to hear. You are very direct and clear in your explanations, which is critical; and you never talk down to your audience, even when talking about the most simple of mechanical concepts. A commendable job.
I am 54 now, when i was 44 I got the urge to go kart race, did so for 4 years, A 6.5 predator engine can put out 15 -19 hp and turn 7500 rpm alot easier than you think, If you break in the engine and do it right, those engines will last a long time and be very reliable
yesir. Ive got one that im working on that will do just that!
I'm 14 and have been kart racing since I was 7 and those Motors are trash
Cliff P if your sure the tap and bolt are correct you could use it, I would prefer (if possible) to just clean it by running a bolt in and out with some penetrating lube to avoid the chance of crosscuting the treads with an aggressive tap
As for mods you can buy a stage one kit or make your own what you need to do is remove the governer gear and arm make 1" diameter exhaust about 350mm long expanding to 1.25-1.5" 100mm-150mm long at the tip, drill the carb main jet to 0.8mm and add a high flow air filter and adapter (these are reasonably priced) this will give you a decent power increase I would also add additional crankcase ventilation and filtration system
@@josephharmon3851 must be nice to have parents buy built Honda's. Us working men don't see the reasoning to spend 2000 to romp on the weekends.
@@josephharmon3851 I've been kart racing since I was 9 and I'm 26 now. My built predator 212 performa the same as my built gx200's. Your opinion is trash
I like how he goes into details about the builds. I'm going to build one soon..
It sounds and moves like it should be black with lots of red accents. What a great sound that mod makes.
your neighbors most love you (burnouts, crashes, backfires)
haha yeah they haven't booted me out of the neighborhood... yet...
Linus Wiktorsson lucky. California old people are the worst. In general baby boomers are annoying.
@@quattro4468 baby boomers are as ridiculous as their generations name implies
I wish I had cool fucking neighbors like this.
@@KartFab I installed my performance kit on my mini bike and my go kart, and both of them sound like there is a leak of compression from somewhere like a hissing sound, any advice as to what it is?
RIP carburetor jet:
One like,one prayer.
*Edit*
Awww, My Heart Will Go On is gone :
thats alot of prayers that carbs got
kelton moore I see x3
Prayer is useless, in any context. Keep the praying shit in your closet, like the great, invisible, Jewish sky-zombie said to.
@@bonedancer3973 Don't give us atheists a bad name, were not all self destructive like yourself.
What’s bad about the jet ?
It's crazy how there is an air filter, but it needs spray to filter dirt. Ironic but makes sense because the spray is sticky and will sure catch those little particles. By the way awesome video I just traded my 250 dirt bike for a Murray full suspension dune buggy type go kart and it already had the stage 1 upgrades! I think it has a different piston too. Have a good one😁
30 people did not know to treat their air filters
I did this upgrade along with a governor bypass and I've clocked my mini bike at 55mph.
What he said^
@@deucedeuce4223 I think some of the predator come without one
@@deucedeuce4223 put a ziptie through the spring on the governor rod that goes to the carb lever. It won't let the spring stretch open and it'll rev higher! Did it last wknd n it rips now and I didn't even get my stage 1 kit put on yet
PUT THE AIR INTAKE ON LAST!!! It makes putting the new jet on easier.
This guy sounds exactly like Tina from Bobs Burgers
cant unhear it woahaha
😅😅😂😂
You sure he doesnt sound like Dina from the food truck??😂😂😂
What fucking loser watches that dumb unfunny show?
@@rayday007 millions of people
Good job having the kid do as much as possible without holding his hand. Good vid too, thanks
Thanks 👍
"What the crap?!"
My dad bought me a go kart for surprise, it has one of these shits, so i'll start modding it tomorrow! Thanks for the video dudes
El espíritu del tigre wow sick post a video of it!
Hey excellent video! gotta tell ya if I am having a "tough" day or just need something to do for a few minutes I jump on my Doodlebug Hemi and blast around the neighborhood a few times, mind you I have a 69 Camaro 4 speed, an 86 C-10 shortbed & a 48 Harley Davidson 1200 sitting in the garage! so yeah doing this mod on something I'm already having fun with is a no-brainer! Thanks again!
If you put 509 stickers or Sledneck stickers on it it'll give it more HP... ✌🏾
MTNSleder lol
Really
fanks
Or Harley Davidson stickers or even bullet hole stickers
BME Studios Ah, for Maximizing air flow 😂
Oh, noes, I almost scrolled down before the carb jet was "lost." LOL
Great video, your nephew did a great job! I like that you included him to show kids they can do it themselves. Good job, great video and that little thing rips!!
Just because you're a kid doesn't automatically mean you can't do it/whatever..Never stopped me & I had no one.Trev New Zealand
Please do a video on stage 2 and stage 3 mods. I really need one.
Ive already filmed one build that is stage 4, doing a separate stage 4 build. Those will definitely be coming!!
Thank you very much sir. I appreciate your work.
Bright red or neon green would look stunning
For anyone who asked questions, the channel hasn’t posted a video in 4 years.
Yeah buddyyyyyy
Thank you, just did this and I had no problems nor confusion
Thanx for the vid. The crash was epic.
This was extremely helpful thank you
You should get a small impact... It'll be a lot faster taking it apart...
2:40 "remove these nuts" zooms in while saying it
What size was the new main jet?
I’ve just bought the predator 173cc for my motorized bicycle build, using the gas frame
Color: a Grey and Red Camo wrap
You could buy it for cheap on eBay and it would be a cool project video :) just a suggestion...
camo wrap looks good, ill run it by my newphew. Im thinking all the plastic parts on it would look good like that.
Fun to watch lol😂😂😂.
I recently bought a 420cc predator and the legends were true, I recommend putting in the $339.99 to get a beast burn out machine!
Did you do any mods to it? And if so what and from where?
p.s. The non Hemi has more compression
Just got a good go kart frame for 60 bux and got a 212 predator from harbor freight. Waiting for mechanic to assemble everything then I will be upgrading engine in short order. Thanks.
Great video, clear and informative, thank you so much I’m looking forward to installing these parts
Maybe I missed it, But where did you purchase that hold down bracket for the choke lever? Thank you.
Typically that comes with the kit. I buy mine from ombwarehouse.com and it's always in a baggy tucked inside the filter with the filter adapter nuts and the hex screw to hold the bracket in place.
I'm glad Will Farrell finally got his own UA-cam channel.
😂😂😂
@ 7:57 was not expecting to see Rose in this video. Hahahaha. Subbed.
This must have taken forever to film. I noticed your nephew changed his shirt 10 times before step 4. Lmao
Great info. I've got a 79 cc I want to help the performance on. What stage is it that you pull the governor? OMG that kid needs to be wearing pads, helmet, gear, mouth guard etc...Ready for stage II
Great vid I was wondering what mini it is
Good video your explanation is good and the camera angles Were very clear
Ok you gonna let Cletus tear it up before the kid even rides it!!
Best boost in performance for the price, is remove the governor. Removing the governor takes like 30 minutes and gives you like 10+ mph.
Can also blow the motor.
Love the videos! Question? What size jet or what size difference jet did you install to create proper air to fuel ratio ? We have a predator 301cc... custom exhaust and the k&n style air filter. Any help would be appreciated
Awesome video just wish I knew how to add sprocket and chains my guy
I think that Colin's minibike should be a,Tartan Plaid... ;-)
Seriously though, I'd say a metal flake midnight blue.
I know this sounds stupid but are there any quieter exhausts than stock? I don't want to get booted...
honda grom
As soon as I seen them breather on the gas tank and valve head I knew this is what I needed to see no one and I repeat no one shows that in their video
Hi, love what you do and full respect! I have been building high-performance motorcycles since the 80s. I happened upon a free Subaru 170- 6 hp setting for trash pickup on a stump grinder..Wow, you have got to do a build on one of these! Overhead cam, giant intake and exhaust ports, high-lift cam and a big-bore short-stroke with a hefty con-rod! It is built like a Honda XR engine! If you want, I can share some pics! I plan to get 15+ HP out of this reliably! Also, Super-lightweight.
I have one on my mini bike and your right man that subaru is a beast...i would like to mod it out..let me know if you have any advice on that.. thanx
I have a Coleman ct200u ex I put a stage 1 on it and I got it to 55 mph
How do you get the vent valve out of the tank mine broke and I need a new one …. Thanks loved the video
I dunno
Counterclockwise!?!? That little feller's clock is digital!
Well, you sound like a schoolteacher, I like that because you add information , lick the spray😂
I got a 212 with 22mm mikuni and 22 pound valve springs with header what is my rpms and top speed on a Baja worrier with torque convert thank u my friend love the videos
My friend rode my stock 212 and nearly crashed and I just bought a stage one so I hope nothing happens 👀
Love the channel.
Awesome video I have a go kart I wanna get fix up and don’t know much about this video helps but I would wanna put something a little bigger and faster any videos on higher stages??
I’ve got a stage 3 build video coming out soon.
Your nephew needs to brush his teeth
Hey I mean it’s true bro I looked at those things and got blind from them they better pay my medical bill
Funny
Funny
😂😂😂
Never in my life have i seen air filter oil.
Oh dang. You must be using those paper air filters. The washable ones use oil.
I recognized that K&N red filter oil
Unless it's a paper filter, it is the oil that captures the dirt, not the filter. Read the directions.
wow .I have wd 40
Are there any that dont make your predator any loader
What size jet did you use for this video, I have the same motor?
I’m trying to get the same answer, I have looked at all of the stage 1 kits from gopowersports.com and ombwarehouse.com. I have come to the conclusion that the jet size in the stage 1 is a .038 jet, I believe the stock jet is a .028. I have a handful of stock jets laying around so I’m going to hand drill my jet to .035 and see how it runs, if I need to drill it more I’ll probably go up one MM at a time all the way to .038 until I find the sweet spot! Hope this helps dude, good luck!
@@mr.dipalipman9332 this info helps ! Thank u so much!
Can the mods get wet? I have my predator on my go kart, but only have a semi waterproof cover for it
Awesome did you guys put in the upgraded springs?
No, just stock.
When he removes that air filter the float valve gave me ptsd of mine on my dirt bike
Would love to see something on the 79/99cc h.f Predator motor
hello don't you have a video on a step by step moter mount for a go cart?
K&N air filters, properly lubed the dirtier they get, the better they perform. I have used them for over 40 years.
i like them a lot
I did this same kit and my engine was running very rich. Please help.
I just got the kit, my engine wont stay idling and when you press the gas too far it shuts off. Any idea how to fix it?
Great video! I plan on doing the same to my engine but I need to keep the noise down where I live. Should it still be rejected if I plan on putting a restrictive muffler on to quiet the engine noise?
Yes jet should be changed or it will run lean
i don’t put that dust thing on my air
filter it doesn’t let it breath has good with it off so u have better air flow and more power
So you are saying that a cylinder head that flows 65-75 CFM with a carb that flows 88 CFM is somehow restricted by a dust cover that flows around 500 CFM? Ok.
Nice Video. What size exhaust piping are you guys using ? Like 1" od , .860" I'd ? Have you tested bigger header pipes ? Thanks
This is “ od as the final weld on header. They have a couple more header pipes available.
use 1 '' weld 5 '' a.s.m.e. pipe '' about 4- 5 '' long and back to 1'' expantion camber works better 2 feet or more long these are proof performance
okay i did a review of your video's im sorry i missed the jet change was drinking a little and spaced that part but still may want to look into a jet kit for that thing still sounds like it need a little bigger one just saying!
Great video guys.
thank god he did not remove the governor in it the thing already looks fast as heck,,, wow what a two wheel death machine cool..
You mentioned getting a dyno....did you ever get it?
Hiciera un vídeo de motor estacionario pero con carburador de moto 150 o 200. Como se adapta y especialmente ese brazo donde por dentro está ese piñón de plástico si se anula o se deja ahi
The gasket in step 5 the thick gasket do I have to have that and since I lost mine where can I get one and what is the name of it. Plez help me
You coulda drilled the old jet out for a spare
was thinking the same thing, or find out and open up the existing jet.
Where do I buy parts
Do you recommend a torque converter? Or just stick with the clutch plate forever?
If you bought this exact engine, check your compression. And read this that I discovered. I bought the same exact engine for a big 2 person go kart, It ran fine for 10 hours, then lost power. After checking the compression on it, I was sad to see it only had 52 lbs. I took off the head, piston, checked the valves, piston, rings, gasket, and all seemed ok. I took the vales out because one seemed a little harder to push through and sanded with 600 paper. After putting it all back together I reached the compression and still had only 52 lbs instead of the 120 (8.5) it is suppose to have. NOW THE SHOCKER!!! I also bought a brand mew 3200/40000 watts generator, predator with the same exact engine. I had only started it when I got it and used it for about 20 minutes. I took the spark plug off and checked the compression. I was shocked to see it had the same 53 lbs as the other one. So Im wondering, it Harbor freight selling this engines with only 52 compression and know it or that is going on. With this little compression the engine is only making about 3 HP or less. Id like to have people with this engine check their compression and see if they also have a weak 1/2 compression as I do. If so, then we are getting the shaft and been ripped of. But worse the engine is not performing the way it is advertised and is breaking the law. Both harbor freight and Predator for making them this way.
The camshaft has a compression release on it so you can easily pull start it. Your compression meter will not give you any meaningful reading. If you want to see if you are getting the proper seal, do an actual leak down test. Thanks and have a good day.
I know your neighbors love you lol
Does anyone know what header that is exactly? I want to make sure it will fit on my MM-b105 frame
I used the weld on header to make sure it fits
When he took off the nut on the carburetor how did the gas not come out
Ahaaaaaaaaa theres a ad in the middle of the video.... 😑
Should paint the minibike red or metallic blue
Isn’t it supposed to make the mini bike faster? I put that upgraded filter on and it didn’t really go any faster..?
The air filter cover was on the whole time 😂 otherwise good video
It’s supposed to be. It’s a pre-filter 👍
@@KartFab say what 🤔 that's has to cut down on air intake though but hey didn't know cheers 🎊.. good video
@@lilbbbbbbb the air intake limiting factor is a 16mm hole in the carburetor that restricts air flow to 45 CFM, not the air filter cover that allows approximately 500 CFM of flow through it. It just traps more dust to keep the air filter from clogging up too fast. Cheers.
Where'd you get that retaining bracket for the choke lever
I Bet your neighbors love you !
I’m going to put a .038 jet into my carb I’m just of afraid of messing up my engine to bad please just give me all the details
Hello, your video is very great, always support you!
Do you have to change out the jet? Are there any problems to follow if you don’t?
Ok, I need +KartFab opinion. I want to buy a Stage 1 kit for a rear tine tiller application. My tiller had a 10 hp Briggs, so get me 10hp out of the Predator 212cc and I'll be happy. My question is the exhaust. Can I have a more modest length exhaust? This Horse has a tight area where the stock exhaust was flush to the engine. I can't have it sticking out 2 feet or something. The intake might be tight as it is! Thanks for the great video. I want one.
Yeah there are multiple choices for exhaust. You can just cut off the end and put an RLV muffler on it too. If you cut the exhaust too short with no muffler, it could warp the exhaust valve.
I wasn't exactly going to cut it *that* short, LOL. I found a seller that has an exhaust that's for some kind of boat or I don't know what. It appears a lot shorter and has a screw-on muffler. I am going to try that kit. I guess if I have to cut down the pipe, a bolt-on muffler might work on the cut end? My ideal muffler would point "up" somewhat or turn down for noise reduction. I wish the performance parts websites showed the installed finished look from a few angles.
How fast this bad boy goes ? Because I have a stock 7 hp engine and I ordered this kit 💀
Depends on gearing. With stage 1 it can rev to 5500 rpm
I wonder how many kids your nephews age that don't know what clockwise or counter clockwise mean? Many of them haven't grown up around round (analog) clocks and have no idea which way a clock turns...LOL I hear the shop teachers complaining your nephew wasn't wearing safety glasses. One note, I have no idea what material the air filter adapter is made out of, aluminum or plastic, you put a drop of Loctite on the choke lever retaining bracket screw, Loctite will attack many plastics, if its aluminum you are fine. Never use Loctite on any plastic, they do make a special product that is plastic safe, good luck finding it...
I had a friend ride my bike and he underestimated how fast it was and almost immediately fell off
How much more hp do you get from this
Does an electric starter kit of a Honda matches with launtop?
When you reinstall a jet how big of a deal is it if it’s a little loose or a little tight? Will one turn too loose affect it? And will one turn too tightv