HAWK BIG BORE KIT INSTALL (Full Tutorial)
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- เผยแพร่เมื่อ 7 ส.ค. 2022
- LINK TO BIG BORE KIT
motocultparts.com/products/tr...
full step by step walkthrough on how to install the big bore kit on your hawk 250. leave any questions in the comments. this was a ton of fun to make.
(intro and outro music)
Track: Near x Far - Not Enough [NCS Release]
Music provided by NoCopyrightSounds.
Watch: • Near x Far - Not Enoug...
Free Download / Stream: ncs.io/NotEnough
(head and piston)
tinyurl.com/3jcy4d6j
(questions and where to purchase)
/ 538381033829344
(alt link to kit)
www.aliexpress.com/item/32568... - บันเทิง
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Link to the BIG BORE KIT
motocultparts.com/products/true-70mm-250cc-power-cylinder-and-piston
As an aviation mechanic, the best way to find TDC is just hold your finger on the spark plug hole and rotate until you feel compression, by using an aluminum welding rod or coat hanger laying on top of the piston continue the rotation until the rod start by down, that TDC.
I was your 600th subscriber 😫. Getting my hawk 250 pretty soon and I’m getting more and more excited finding such good videos like these! Keep up man I’ll be along for the ride
Nice video you made here I never had a chance to cover installation of the big bore so I’m happy someone took the time to do so!!
Top speed and performance review will be VERY soon. Waiting for the piston to break-in just a little. 😁👍
U just inspired me to do this to my bike I really appreciate you going through and giving us a tutorial much love ❤️
Awesome cant wait for your new video. I am getting a DLX 250 in a couple weeks. Do you see any issues I would have with putting the 300cc head on this DLX model with the stock EFI?
@@Panasonman I’m also curious.
I was gonna put one on my Hawk dxl as well. Not sure if the computer will be smart enough to compensate. For 56 bucks though it’s worth a shot
Was the piston pin 16 or 18mm? Thank you
Your cam operator is great she needs a raise 😆
Worth mentioning when you installed the rocker box you did get the torque correct at 20ft lbs for 3 12mm bolts that hold it in place!! As well the head torque spec was also correct at 24/25ft lbs so again good job on the install video!!
Enjoyed your video. I am a mechanic by trade, you did a pretty good job. (And I'm going to use some of your nomenclature with my co-workers because they work and they're unique (Pushrod Actuators = Rocker Arms for instance) -- good stuff, thank you for taking the time to show all the ins and out of swapping a piston and jug).
thank you friend
In my mind they are solid lifters, rocker arms are pushing on the valve, so pushrod actuator does work here but not for rocker arms
Don't do that. You will sound like you have no idea what you're talking about
Are you sure it's 250cc not 229cc, and that after the upgrade, it gets 300cc, not 250cc?
I really enjoyed seeing your work and can't wait to see your next video on the gains made .
Thanks for the video, really appreciated. You make doing my bore upgrade a whole lot easier 👍🏽👍🏽👍🏽
any questions/updates lemme know dude
nice tutorial wasn't planing on watching it all but you've made it so good and so interesting to watch . you're a good sensei I must say . good job
thank u man it was alot of fun to make, still waiting for the cylinder to brake in a little before i do a top speed video
same
I really learned something you have a gift of teaching .
Been debating going to the 300cc jug, and want to thank you for this video. Real help.
I purchased the 300 jug kit and it has 300 cast on the side. The piston pin hole may have a little offset. The valve reliefs were much smaller.
@@johnvolstad5870 Please come back and tell us how the jug upgrade went(long term). I have on my todo list a 141cc BBK upgrade for my Boom Vader bike, but after that might add a few cc's to my TBR7 motorcycle after that. Thanks!
@@MyMotorcycleBlog They have a daytona 190cc and a zongshen 212cc that fit your bike. Both 5 speeds.
Thank You ! Purchased the jug and piston kit from Aliexpress. Coming late jan. My Hawk does 72mph. Shooting for 80+! made a wind fairing from a grinder visor. Works !
BTW, I am an automatic trans tech for 42 years.
So did you get it done how did it go
Very good thorough instructional video. Great watch and great job
Haven't watched yet but man I've been waiting for this one, literally just now got the notification
Thanks, for sharing all that knowledge.
Really looking forward to the performance test on this. Thanks man!
check newest video
Nice Tutorial, im looking forward to doing this im just waiting for my kit to come in
When installing rings on any four stroke piston install the oil ring first then the two control rings that go above and below the oil ring. It's a lot easier that way because the oil ring has a lip on the top and bottom inside edge of it that sits behind the control rings. It's hard to explain but if you look closely at all three oil rings you immediately see what I'm talking about. Now let's see how many keyboard mechanics disagree with me on that lol. I'm just saying that method has ALWAYS worked for me and I've built my fair share in the last 30 years!
Can you add a google image link to what you're talking about? I'm new to these bikes and I want to do everything as correct as possible when I finally install the big bore kit on my 250cc. And thanks for your knowledge !
That’s correct!
@@roadgaper2570 if you need some help with your piston rings I just made a video covering the process so they get installed correctly!!
Yes !
Correct when installing ring you would first do the expander then the two scrapers then second ring then top ring
one of those sleeves is called a wrist pin 😁and should double check ring end gap too 😉 good vid bud 👍
I never heard of a connecting rod being referred to as a crank pulley. I learn something new everyday.
Aliexpress is Great ! I ordered my 300cc jug kit on Jan 5, it arrived on Jan 12 ! 1 week, WOW !
where you able to get it runnung with this kit any other mods needed i cant find a video no where with this kit acually running
Great tutorial, looking forward to the next video.
Great video. I'm planning on getting a hawk and start playing with it. Can you please recommend the big bore kit you used, there's a lot of them at different price ranges and I'm not really sure which one to use...thank you so much, again great content
Excellent instructions.
Awesome! I'm going to do this to a brozz. Thanks for the great video and all of your vids. Geaux Saints
how did this go on your brozz?
You make great videos Moto ♥
Nice video can't wait to see what the Top Speed will end up being
I feel like I missed something here, this kit brings the engine to a 70mm bore and still 65 stroke leaving the displacement at 250.15cc. I'm not seeing how the cylinder wall would be thick enough to be bored out to an actually 300cc.
Correct
Awesome work👍🏻
not sure if i missed it but the rings especially top and middle the gap should be 180 degrees apart.. oil ring same thing.. also its called wrist pin through piston and connecting rod from crank. :) also good to put a bit more oil on the rings for insuraction of piston in the bore. just helps with first start to prevent scoring of the cylinder walls. good job.. :) enjoyed it.
I’d love to see a video on your carb tune and setup with this
Great tutorial! Ty
Great video! I’m gonna be picking up one of these bikes shortly, but I’ll wait on doing this. How’s the bike doing today?
Sweet Hawk!
So first thing nice job bud,so I just picked up this hawk bike darn thing runs good but the intake carb boot is bad ,so I got a couple questions, to install a new on do I have to take my tank and breather box or cam I just wezell the carb outta ther and install the new one . Thanks and keep up the info it's vary helpful..Thanks agin
So, I'm in California where HAWK is not allowed to be delivered from Amazon probably due to smog, but I'm starting to realize why Harley Davidson is so loved. HAWK was made to be tinkered with, and in doing so you get to learn EVERYTHING about motorcycles and I think that is a huge appeal. There is a relationship between you and your bike and this makes it stronger.
my dad has the same issue. he wants a hawk 250 to use as a farm bike but he cant purchase it because of the state he lives in, they literally wont deliver it. i think we're going to work something out where i just purchase one and ride it over to him
@@mototaco6603 Sick !!! Great idea.
You modify a hawk because you want to, you modify a Harley because you NEED to. Huge difference. Also the 1,000% markup on parts from HD are more than a little discouraging.
Sweet vid...
I always put a towel on engine crank case hole when messing with wrist pin clips so nothing can fall in crankcase, cause I never want split case to get something that fell in the crankcase hole out. Lol But awesome tutorial on rest.
Hey man. Great video. Could you provide a link to the bore kit? I can only find a water cooled modle
Please provide the manufacture of the bug bore kit, and/ or part number.
Did you check the gap on your rings? I want to watch an update of this guy to see what the 300cc can do compared to the factory 230
Great video. Could you please let me know where I can order the 300 kit.
this tutorial is so simply stated,with exquisite videography,i think i can change mine out,what hp increase are you expecting? top end?
really only about a 3 horsepower difference
has anyone done a dyno before and after this upgrade? I am curious about how many HP that superhawk has.
Great video! How is it running with the 300cc top end? Did you do any port and polishing to your head?
I will do some bowl blending and port matching. They say to polish the exhatst side but leave the intake side rough to help fuel atomization.
Stuff rags around the rod and over the crank case before pulling the piston pin clips just in case you do drop it, you don't want to pull the cases apart!
Please tell us the brand of kit you received. I got the DVNOP brand with the coated flattop piston. Had Austin Auto Machine turn the sleeve down to 74mm. Put the pin in the piston and connecting rod. Slid the piston carefully over the rings. OMG, the piston top was a full 3mm below the deck of the cylinder jug !!!! put it together anyway and managed to get it to run. put compression gauge on 50PSI of compression.
I am in Ecuador and this is a great video for me and my Daytona adventure 250. But can you tell me where to get the big bore kit here.
Dude thank you. Not many good videos on these china bikes. My TBR7 had 6k on it and is still pushing. All a stock besides gearing and cosmetics like the bars wheels and stuff like that. I’m ready to beef the engine up a bit.
Great tutorial! I am curious what kind of gains you will get. I just might try the DLX out if you can gain 25% more power. I am also curious if you could buy a water cooled cg300 and fit it on a Hawk without too much custom work.
Would you have to do anything to the ECU on the DLX?
@@glefic yeah, definitely would need a new tune for more air and fuel. The stock injector might work, but if it couldn’t supply enough fuel, you would probably need to find a way to rig up a bigger one.
KOOL, NOW MORE PEOPLE CAN IMPROVE THE PERFORMANCE OF THEIR'S.
I took off the odometer but I'm pretty sure I've got over 150 hours on my Hawk 250 real off-road riding and wheelies because I stripped it but lately it's been making a bunch of noise from the top end of the engine I bet I'm going to have to replace valves and The Jug including the piston
I have a question all these Chondas that are being built so they all use the same motors? I wonder if the Bashan 250, Xpro250 and the XMoto 250 or the Apollo 250 are clones of the CRF 230?
Cool video
Wrist pin, not a sleeve
Piston rings should be gauge in the cylinder before installing on piston. Most rings will have a dot or number that faces up. If you have a arrow on top of piston means arrow faces towards exhaust . If you have new gaskets, use them
Been interested in doing something similar on my 125 it doesnt add much tho its still all the same gearing as stock
are you gonna do a video on a test drive after the big bore kit install
Was the piston pin 16 or 18mm? Thank you
Nice first time seeing this video I been thinking of buying one to go cruising does this upgrade work in all 250cc hawks or in some models only
any stock carbureted hawk 250 this mod will work
Assuming the Magician 250 and Hawk 250 are basically the same motors, would you believe this would be the same process? I'm looking to order a Magician here soon just to have fun with and modify.
where did you get the big bore kit from, and will it work with the dlx fuel injected hawk?
Did you have to machine the cylinder sleeve at all? and the piston pin was 18mm?
Where did you purchase parts from? this might be in my future.
Какие ваши впечатления от нового поршня, как изменились характеристики двигателя?
hello, this engine which is a jongshen 250 cc.
is not delivered with an oil radiator.
I see that in the video your bike has an oil radiator...
will you ride it?...
or is it already like that?...
can you tell me where to connect the return and return of this oil radiator?...
THANKS
Bro, you didn't gap the rings? Pretty ballsy move considering the source of your parts. Appreciate the video, always enjoy watching horsepower mods on these Chinese bikes.
Hey I have a 2021 Chonda Hawk 250cc aka 230cc I’m trying to put the 300 bore kit on it myself is there a link or website that you ordered yours from ? That would be great if so I’m interested in doing it to mine
Its a simple plug and play block, nice! How did it go? Did you encounter any problems with the new block?
None whatsoever, ive yet to leave a review for said jug but after im done visiting family for the holidays ill get right back on it
So did it give you more power and more top end speed?
How is your piston rod going to like that big bore kit? As I understand that Rod is for a 67mm piston and the crank shaft is designed for a 67mm piston and the bearings too, so it will be fun to see how it goes for you in the future.
I was wondering if your were going to post the top speed
how would it work, if i have v-twin 125xl honda varadero engine.
Ordered the kit and the wrist pin is 18mm but my bike is a 16mm and the cylinder is bigger than the original so it doesn’t fit on the engine. Any suggestions? What year hawk did you rebuild?
You ever looked into swapping a 2 stroke motor into one of these china frame? Anybody you can point me towards? I been looking at a kx80 kdx80 cr80 cr125 2 stroke type of deal. The kdx 80 2 stroke looks like it will bolt right up with 15hp and great torque.
Will it work for the TBR7?
What jet are you going to use on your carb?
So will the aliexpress big bore kit be a direct bolt on to the tbr7?
Would this kit work on the DLX fuel injected hawk?
Are the vibrations even worse then stock with the new bigger piston or did it stay about the same?! My bike at 60 will make my hands go numb after about 15 mins lol
Did you check Gap of each ring in the cylinder?
Did I go past the ring positions? Make sure all the ring openings are not lined up.
Did the stock jug have 250cm3 stamped on it?
What parts are needed I want to do a bore install on mine but what is needed
How much more speed or power did you get from the big bore kit
I want to know your new top speed
Is the hawk 250 engine the same as the loncin re 250?
Can you put a pinned comment parts list for the aftermarket, I'm having a hard time finding the right exhaust
Can I be done to the fuel injection 2 or no?
Will this big bore kit work on the Lifan KPX250?
I've got a BD50-7 ( AKA xpro 250).....I was wondering if this kit would work for mine even though it's fuel injected?.....by the way, awesome tutorial, always love anything I can find about these Chinese bikes....I think the quality coming out now from companies like cfmoto,and the affordability of these bikes are going to really take over within the next five years.....we should start seeing a lot more china bikes out here in the near future
For the fuel injected version of a CG 229cc yes it work’s essentially the engine is identical internally & externally main difference is fuel delivery & your mt05 ecm will need a tune afterwards
@@Jboost412 How would you get a tune for it if you did the 300cc jug on the DLX EFI?
Where did you get the 300 big bore kit and do you have the part number
When is the 300cc review coming I can’t wait 💪🏿
check new video
Hey man you hawk guys have more info on these cg engines. What’s the difference between in the cg150+ is it just piston size? So technically I can just buy a 300cc BB kit and slap it on a 150?
the crankcase should be smaller aswell for the cg150. back tires and frame should be smaller aswell. i think the mod is only possible on the 229cc hawk engine. theres nothing stopping you from purchasing a full hawk engine and trying to appropriate it into your smaller frame. whether its worth your valuable time or not is entirely upto you
What’s your top speed after the big bore kit?
Please, Moto Taco show a picture of a compression gauge psi reading with the gauge still hooked up. Please tell us the brand/manufacturer of the kit as you showed the parts on a styrofoam packing thing. Thank You ! P.S. Enjoy the Daytona 500. It is coming on soon on FOX.
Is this the same motor as the Apollo 250 ?
We wanted to see it run! …..and a 0-60 run.
Hi where did you get the barrel kit from plz