Awesome work! Your skills and hard work are pretty amazing... And not only on your bike, the quality of the video & editing is on top. You really deserve a much bigger audience. Keep the good work. Love from 🇦🇷
top notch mechanic for sure, but as a machinist I'll give you a small tip. when lapping/sanding surfaces that you want to be as flat as possible its best to use a figure 8 pattern when sanding.
I have found using a rubbing block and making a cross-hatch pattern will yield better results. Using sandpaper larger than what your trying to make flat will cause the edges to wear down more. Only maybe half thou say probbaly won't matter but still half a thou
Do you have an idea why the crank seized? Could it be just bad maintenance or is there something wrong with these yzf engines? I've seen many cases where this same exact happens that the crank seizes like this and im worried for mine now :D.
Hi Matti, it is a pretty common thing, the big end bearing fail is common, it takes a lot of stress a lot of times. To push it back as far as possible I would change oil and filter per recommendation and not overheat my engine (so install have a temperature gauge somewhere to check)
Dude, you. Don't make any dances you powder coat.The case covers, but you don't clean up the casings at all on a complete rebuild.Why even bother if you're gonna leave the casin's filthy man?You didn't even really clean them up.Much less.Get the corrosion off of them. No damn sense at all.
I like it man. Building my 08 yz250f right now so your video was a big help. Powdercoat is awesome. I blasted my entire case, all my master cylinders, pretty much everything I could, but im going to try Cerakote for the first time on this build. Keep up the good work man
man, you know your shit around these bikes! As an experienced mechanic, which motocross bike would you say has lowest running costs and best reliability in long term perspective?
What is bearing number code at 1:46? I ordered that bearing with same code what was an old bearing but new is so small on that bearing hole. 6204RUED is number what i got
I dont know where u got. 040 on the 2nd piston ring but that gap is double what it should be. You had to have read it wrong on the instruction pamphlet or something. If you are building engines you should know better than that...
I just rebuild the engine on my 04 Yamaha Kodiak and later on like about 4 days later it slipped timing and bent the valve my fault tho I had the chance to replace the chain and I was wrong on my call but I learned my lesson
Hi there...Enjoyed the video my friend..I am looking at a used to 2001 yz250f that the seller says doesn't run.. needs rebuild kit..he's asking $1800 obo... I wonder how much it would cost to rebuild the engine like you are doing here? If I buy can I ship the engine and rebuild kit parts to you? Thanks Kenny in Winona Mississippi USA
Hello. I could really use your help! That banjo bolt that you put in the case at the 18:58 mark I stripped because the torque wrench decided to not click! I've been working on this bike for months now and couldn't imagine having to pull it apart again😭 What you do??? And does that hole just go into the case behind the clutch? Like if I was to have to to any drilling, could I just take the clutch out and clean the shavings out there? I'm really stressing out about this. Thank you for any advice you can give me...
I reinstalled the transmission but first gear need some help to pass but all the other gears work like a charm! I want to know if I need to do something before closing the case
Buenas, tengo una yz125 1991,pero no tengo repuestos para la valbula de poder, el cilindro puede ser remplazado por el de alguna version mas nueva? asludos!
I find them for free, there is different websites that host those and I don’t really know their name I google search and find the manual I need in usually less than 5 min, you definitely don’t need to pay for that
Apply ultra black gasket maker to metal cover part and set gasket on top of gasket maker ultra black get it anywhere then install cover tighten down and wait for ultra black to fully cure.
I have been working 100% of my time on it for the past week, the next video will be posted in June and will be a long one because it’s the complete rebuild of the bike 👍
Thanks for the video! I have rebuilt 2-strokes but wanted an idea on how to set timing and such as I am considering getting a 250f. Thanks for the confidence boost! Now, If i buy a 250f, I'm more confident in rebuilding it!
