Fixing A Bent Dirt Bike Radiator
Fixing A Bent Dirt Bike Radiator

I got a question for you guys do you
think this radiator is repairable it’s got a huge Bend on the side of it and
it’s also twisted from top to bottom I don’t know about this one I’m gonna give
it a shot though all right first issue with the radiator it is
twisted from top to bottom and that’s got to be straightened out before I
tweak with anything else and I noticed there’s a crack here on the edge of the
radiator that is just in the support of the radiator and it shouldn’t cause any
leaks but once I have this radiator straightened out I’m gonna have that
welded up the easiest way to get this radiator straightened out from top to
bottom is to get it in a vise and just twist it back by hand just gonna lightly
tighten it down definitely don’t want to put any muscle into it these radiators
are really weak you can literally grab it by hand and twist it back into place
since I don’t have my vise bolted down I’m gonna have to put the setup on the
floor it that way can hold it with my feet and get the leverage needed to
twist it back well that’s straightened out pretty easy
it actually looks pretty dang close next up I’m gonna knock this edge back into
place using a block of wood and a hammer and you want to place the radiator on a
flat soft surface such as this plastic cart so it’s pretty simple it’s gonna
place the block of wood on the edge of the radiator and give it a few love taps and you’ll want to work yulie from one
side to the other this will help straightening go a bit
easier the radiator is starting to look really
good at this point the issue we’re running into now is the top tank and
bottom tank aren’t perfectly parallel you can see the four corners aren’t
exactly 90-degree angles so I can’t get the edges as straight as they need to be
in order to fix this I’m gonna put the radiator back in the vise so this tank
is shifted over this way I’m gonna mount the radiator and the vise and pound on
this edge of it right here for this one I’ll be using a soft hammer that way I
don’t damage the edge of the radiator I’m gonna continually check the corners
with the speed square until we have 90 degree angles at all four corners looks
like we’re a bit off on this bottom corner I’ve got it looking pretty dang close
right there I’m gonna call that good there’s still a little bit more work
that needs to be done on the edge of this radiator all right that’s about as
good as I’m gonna get it really happy with how this one turned out now I’m
gonna bring it over the sink and test for any leaks I’ve got two of these hose
fittings closed off with rubber plugs and the third one I’ll be spraying water
into let’s hope there’s no leaks thankfully I don’t see any leaks so next
up is gonna be shining this thing up in the parts washer while I was at it I figured I’d clean up
the other side radiator as well but man these things turn out meant hope you
guys enjoyed the video I know I had a ton of fun shooting it just a quick
reminder you have one day left to enter the giveaway on the parts washer and
also in a day the price on the parts washing tutorial is going up click the
first link down in the description for all that information I’ll be checking
with you guys in a few days see ya you

100 thoughts on “Fixing A Bent Dirt Bike Radiator”

  1. Cameron Niemela says:

    Have any of you guys tried bending back a radiator yet? Let me know how it went! Just one day left to enter the giveaway by the way

  2. gringhoez says:

    Your such a big inspiration keep it up! 😀👍

  3. Brett Coop says:

    Love the videos. You should a course on your power washing cabinet next 😉

  4. Mxrider2stroke Braaap says:

    Nothing a good old hamer, a vise and a piece of wood can’t fix:D Great video!

  5. Jfranks8 says:

    Didn't you already post this?

  6. Joseph Chapman says:

    I would never trust that thing not to spring a leak once it heats up and gets subjected to riding conditions.

  7. Jay Felix says:

    How’d you get in and around the fins clean?

  8. Landon says:

    Great Vid as always:)

  9. Борис Мото says:

    защита радиатора

  10. HOT SHOT 1500 says:

    I would have just bought new oversized ones anyway but those radiator didn’t even look that bad to start with but it would be a good upgrade to keep your bike running a lot cooler and one more thing GET A JD JET KIT it is a need for this bike!!!!!

  11. KHR Prod. says:

    dafuq 😮 i think i've seen this video already!

  12. Axeman says:

    My klx 250 has a bent radiator , I feel confident now after watching this I can fix it. Thanks !

  13. babinos mlrs says:

    i have tried once with hot water. much easier for me. keep up the good work. Greets for Greece

  14. Dalton Johnson says:

    I posted it twice

  15. DKWatters says:

    Just fixed my radiator from watching your videos! Thanks for you help

  16. Foxxy Troller says:


  17. Zuro nuro says:

    please keep the awesome videos you do such a great job of them, keep em coming

  18. dirtbagian says:

    I don't know how you do it… I tried it on one if my rads that wasn't even that bad after your first vid and ended up making it worse… I think I'll give it one more go

  19. Jonathan Bonanno says:

    How long does it normally take to sell all the parts on one of your bikes you part out?


    I have been converting a 2001 YZ426f into a YZ450f over the winter and needed to fix or replace the radiators and found a set new on eBay for $80 that we’re better than the OEM’s

  21. Fabio Calassa says:

    Isso é que é profissional

  22. Owen Arsenault says:

    What detergent do you use in your parts washer? It works awesome 👌

  23. Kevin Kinney says:


  24. Aaron McElhinney says:

    I watched your old video on this topic to straighten one of my radiators out last year. This was good timing – I need to straighten my son's radiators this winter! For anyone in doubt – it works! Plus, what do you have to lose? If it's repair or replace, why not try to straighten them out first? For the guy that said something about not trusting a straightened radiator out on the trail: if you pressure test it afterward (Cameron's hose trick and plugging the other lines is less formal but works), you don't have to worry about it. The pressure only gets so high, then your rad cap releases the pressure, which is when you see the steam from it boiling over. If you're racing BAJA or ISDE, that's another story…

  25. Gavin Schwenk says:

    Stop making short videos

  26. billy w says:

    This is a repost from can this radiator be straightened a while back

  27. Angel F says:

    y did u reupload?

  28. Chandler Simmons says:

    Amazing man, I doubted you at first haha. I grew up riding and in the past 4 years haven't touched my bike, currently a crf250. I got it used and after riding it a bit I realized it badly needed rejetted and reshimmed so I started the process but didn't have the motivation to follow through and finish. In the past week I've been missing riding a lot and have decided to get back into it, starting with getting my bike running again! I stumbled across your reshimming video and your carb cleaning videos in the past week also and I have been hooked. You have taught me so much and given me a lot of motivation to get my bike running again and start back up in the sport that I love.

    Thanks Cameron,
    Please keep up the amazing content.

  29. Jourdon Gulick says:

    I just enrolled in the parts washer course. Whether I win or build my own, hopefully I won't have to clean parts in my bathtub anymore.

  30. November Sierra says:

    i never would have tried to straighten a radiator that messed up, but next time ill be sure to try with your technique!

  31. Hunter Campbell says:

    Love taps then smashes it

  32. Broken Sprocket says:

    Good job bud.

  33. Jamie Dutremble says:

    With you working on it, Hell ya. Lol

  34. Caelan MacRury says:

    Hey can you post a video of how to clean an exhaust and to get all the rust off of it. I am about to start a project to take apart my bike and clean all of it but I am not sure how to get the rust of my exhaust

  35. Terrence Clark says:

    I just tried this on a pair of 2013 YZF250 Radiators. One was as bad as yours,it’s good now. Keep up the great work Cameron 👏

  36. Josh MX says:

    hey guys (and cameron) i’m doing a top end on my dirtbike tomorrow and do you have any tips on installing those little circlips in the side of the piston. they are so hard for me to do. any help appreciated.

  37. oo0Spyder0oo says:

    I thought I was having deja vu, I remember watching the other video you did on repairing some radiators about a month ago. Great job.
    I recently opened up some squashed radiator fins on mine with a small screwdriver, gets all that airflow doing its thing again, might want to do that to yours too.

  38. Mike Owens says:

    Bolt that vise down, life would be a lot easier.

  39. Calvin Binger says:

    Now I don’t have to drop hundreds of dollars on a new radiator if I mess one up

  40. Throw Stone says:

    Cameron. I respect the hell outta how you do your due diligence to salvage parts instead of always replacing. Thanks again for another quality video.

  41. Dakota Newman says:

    how do you fix a leak if you have one? do you just have it welded?

  42. Jason YZ250 says:

    Great Idea! 💯 Your videos make me want to strip a dirt bike and rebuild it!

  43. Dumbledore003 says:

    I remember when you posted this in like 2012 it’s been a long way

  44. TheDirt BikeRider says:



    Thanks for the video, Mr Revive👍

  46. William Parsons says:

    Keep up the good work dude! Love watching you!

  47. Lenny Cruz says:

    love your videos bro… makes my day 😁😁😁😁

  48. Антон Бореев says:

    but what if the radiator is compressed? is compressed from top to bottom. the lower part is raised upwards. how then?

  49. Bon Domingo says:

    Keep up the good work!

    Someday i'll also clean my bike the way you clean it!

  50. joseph migliore says:

    Nice work, bro!

  51. WillyPete says:

    Have you ever tried the degreaser by the name of "LA's Totally Awesome All-Purpose Concentrated Cleaner",,, if not, you may be very pleased with its grease cutting ability,, i even use it to clean my hands.
    get back with me if you give this stuff a try and how it compares to what you have used in the past… its all i use now.

  52. Lucas LLorens says:

    Cameron 1, Radiator 0.

  53. Satans Dank says:

    what a great channel! BRAVO!

  54. Kenney Chappuis says:

    I think I would pressure test it first and once again when done

  55. Kamil M says:


  56. Danny Coulter says:

    Can you do a video about how to adjust the needle in a carburettor ?

  57. Zane Hope FZ6 Hundred says:

    Damn! I’m impressed! I really am impressed..



  59. N_Kuz says:

    "give it a few love taps …WHACK! WHACK!" hahaha love it!

  60. Fer Garcia says:

    Exellet vídeos body

  61. Nguyễn Mr. linh says:

    Xem cho nó sướng mắt

  62. Dustin Mcdonald says:

    What do you use in your parts washer? Soap? And water?

  63. Joe Nobody says:

    Try washn them parts in the dishwasher, set it to pots and pans, Crystal light soap. Make sure the ol' lady isn't around.

  64. 509 fmx says:

    Just saved 100 bucks thanks man.

  65. Frank Leferink says:

    well done!

  66. Stevie Munier says:

    To make your radiators look cherry you take 2 little razor blades and press each fin up and all straight to make them look new

  67. 188ours says:

    I think that he repost not the same video but a new better version than the other one, great job cameron I see that your content is really improving !

  68. Justus Hoppe says:

    Amazing 🤭

  69. Jedisaki says:

    Need to do this on my CRF150rb

  70. Soroush Babaie says:

    تو یه فن حریف هستی که کسی به پات نمیرسه پسر

  71. Zach Walls says:

    Super happy I stumbled across this video. I thought I had to pick up a ebay radiator. But this video shows me an gives me hope. You are dirt bike jesus

  72. W P says:

    Just buy new ones not worth seizing the engine when it leaks

  73. Desi Jugadu says:

    Hello sir ur cr 250 build video is great but I can't find engine assembly and how u solve engine slender chek problem I want know how u solve it.
    Thanks for reading this msg.

  74. Fire273MX says:

    I will be doing this to my left radiator on my 2003 CR125. Its not as bad as the one in video, but it does need to be straightened out.

  75. Meme Rider says:

    Congrats on 80k subs

  76. Veera Tamilan says:

    It is cool bro

  77. Stunt Freaks Team says:

    Good job man! Need those tips now 😅👌

  78. Piro says:


  79. Martin Kralicek says:

    this video helped me so much with my 250, thanks !

  80. AndyRips says:

    ICW, get them braced up and they look brand new. Well worth the money. Buy a cheap pair off eBay and send them to icw.

  81. Alias Incognito says:

    I watched a Gary Clark video where he mentioned that he'd straightened a radiator. Never would've believed it possible but here we are. Thanks for sharing.

  82. Rolfey 03 says:

    My radiator is leaking out the bottom what do I do

  83. Roosevelt P.F says:

    Ficou ótimo parabéns!

  84. randie450 says:

    Top repair job mate! I'd be happy as a dog with two tails if I could repair a radiator that well….awesome!

  85. mario navia says:

    Gracias maestro. Muy buen video. Yo estoy reviviendo una kdx250 año 1991. Estoy chequeando todo y dejando el motor para el final. Estan agripados los rodamientos del cigueñal. Saludos desde chile.

  86. Sassy Sasquatch says:

    I just brought 2 new radiators for my ktm 450 and some other stuff, I have literally no money now XD

  87. Tom Nekuda says:

    I would have never believed that you could do that! I'm an old guy who has worked on every facet of dirt bikes for 40+ years; but I still am learning a lot from you. Good job.

  88. Aki Laakso says:

    Nice job make it like new again. Now i know where send all bananas

  89. MARK says:

    busy restoring a 1989 YZ 250 wr ,absolutley loving your tutorials ,has helped me out so so much #southafrica

  90. TNT Tips and Tricks says:

    Nice work bro i have Done the same thing with good result

  91. Pablo Pulido says:

    very good video .. Now I can repair my radiator from my crf 450. Thank you for putting subtitles with an option in Spanish. You are a great person. Thanks and greetings

  92. Marcelo Nespolo says:

    Sensacional , este canal está de parabéns .

  93. Mcloed Mcloed says:

    Was about to chuck mine out but watched your vid.Dankie

  94. Owen Poen says:

    Awesome bro!

  95. LitlleCRO says:

    woah thanks man, now i wont feel as bad trashing my new to me bike in the woods.

  96. Arden Nielsen says:

    pressure test it?

  97. Cody Newcomb says:

    Good job bud!

  98. Rodrigo BX says:

    Excelentíssimo trabalho!

  99. egger2500 says:

    NOT BAD – like your videos – good you're doing this Honda now. THX for sharing! Thomas

  100. daniel gutierrez says:

    hi cameron,
    How do you heat the degreaser? explain please

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