Straightening motorcycle fork tubes, Yamaha YL-1, Twin Jet 100
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- Опубликовано: 6 сен 2024
- In this video I straighten the fork tubes from the Yamaha AT-90, Twin Jet 90, H-2. Using a set of "V" blocks or rollers, hydraulic press, and a dial indicator.
I know for a fact that this RUclips channel will help me open up my own workshop. Thank you sir
Your so welcome, glad these videos are helpful.
Years ago I was hanging out at my favorite bike shop listening to the owner and another 'old timer' have a conversation out front. A fellow walked up and interrupted the conversation just long enough to explain that he had a bent fork tube. The very experienced owner sighted down the fork tube, gave it a solid whack over a fence post, checked it again for straightness and handed it back. All without stopping his conversation. And no charge for the service! The bike owner just shrugged and walked off to put his bike back together.
That is a great story, there is always some guy that can do stuff like that. It's kind of annoying. LOL
I have fully restored 2 yamaha YL1s completely with plenty of new bearings, seals, chrome and repainted. I keep one in my living room and the other in a huge plastic vacuum bag with a silicone pack in the shed. I think my front forks may be a little bent on one bike because the front wheel will not align at 90 degrees to the handlebars. I have no hydraulic press so will have to take them to a professional fork tube straightener.
The yamaha YL1 is a 97cc twin 2-stroke which is very rare in the UK. I restored mine in L.A. from 6 or 7 bikes that were advertised in RECYCLER magazine over 30 years ago. Although I bought them for peanuts they are now worth several thousand pounds here in the UK.
I enjoyed the video and your presentation was excellent. Thanks mate.
Nice, I really love the old Yamaha twins. I have a couple others that will eventually make to the shop. Just love the sound and the performance of these little bikes. Thanks for hanging out in the shop with me.
Gonna have to put hydraulic press on my wish list. Another job well done Dale.
Jack, I find a lot of uses for mine, I just couldn't believe this turned out as good as it did. Man, those were bent bad. Thanks buddy.
great show, first time i have seen that done, just relaxing to sit back and watch you address these issues.
Thanks Frank, glad you enjoyed it. Its great having other like-minded people out there, makes it all worthwhile.
Thanks for sharing the process. I have a bent mini bike fork tube that I have been contemplating straightening. This was very informative.
Thanks man, you should be able to accomplish the same thing with a small press and a dial indicator. Just go slow and don't over press anything so you have to press it back the other way. Remember that the metal will need to be pressed a little past straight because it will spring back some. Name of the game is slow.!
Wow thats really bent! Yesterday an old man with a cane covered his ears when i rode by on my 125. I came here to be with my people ha! thanks for the tips Dale
Hey RD, pretty sure my neighbors aren't real happy with me for all the noise I generate either. But they do seem to tolerate it. As for being here with your people...glad to have you stop by, I am just amazed at how many like minded folks are still enjoying these old bikes after all these years. Thanks for hanging out with us.
Thanks for showing another use for the hydraulic press Dale. I was impressed by the improvement in those fork tubes.
Perhaps the previous owner used the back wall of his garage to save money on brake shoes?
Best wishes, Dean.
Man can you believe that I have seen worst, but never tried to straighten one like this. Yeah, he's sure saving money on something. Wow.
I have straightened much worse back in the day lol ...even so bad they were left with kink swell where they bolted into the triples lol ....was not "right" to do but hey for playbikes they worked and were straightened enough that seals did not leak. forks have always been high bucks to replace so being young on budgets? we just used hydraulic presses and straight edge/ grantite table and worked em till they were more or less straight again...suspension was junk back then anyway. Today there are some really finely machined and carefully engineered forks that actually work amazingly well! Not confident at all one could get away with stone age tactics like back in the day lol I and tell by drum brakes you are working on some crude old tech there....perfect candidate!
Thanks Doug, yeah everything on this channel is old and crude. Thats the way I like it. Just not into water cooled and electronic induction and firing. Just an old guy with old bikes, what is it they say about an old dog???LOL
Definitely the worst forks I've seen! Very creative! Awesome work, Dale.
Terrible am surprised they came back to any useable form.
great job dale should be good to go keep it going great stuff
Thanks again Mark, appreciate you watchin.
Hi Dale, I'm over in the UK & have a couple of YL1 100cc Twinjets which share a lot of the same parts. Had to straighten the forks on one. After putting it back together it was still off & turned out the lower triple tree had also bent, so thats probably worth checking out on yours seeing as that one tube was in sucha a bad way. Easily managed to get a NOS replacement though for not much cash. Enjoying your vids. Keep up the good work, cheers, Mark. Edit: just started watching another of your vids & saw you already dealt with that.
Hi Mark, yep, I had to find one because one of the limit tabs was broken off. I imagine it is bent; it took one heck of a hit. Thanks for hanging out in the shop with me.
@@montana2strokeracer I'm slowly working my way through your old vids when I get chance so I might not be up to speed with some of your progress yet. I did notice when you put the rebuilt forks back on the bike your brake plate locating tang is on the opposite side to where it should be. Hope you spotted that too
@@markjones95 Yes Mark of course I noticed when I went to put the wheel on. So, I had to pull the fork tubes out of the triple clamp again, and to add insult to injury I had to unmount the tire and remount it the other way since its directional. I'm a dirt bike guy...the brake hubs are on the other side. Do me a favor.... when you see stuff like that yell a little louder so I can hear you on this side of the pond. I have to watch the old Yamaha twins too; they have the chain on the wrong side too. Man, it's always something! Thanks for hanging out with me in the shop.
@@montana2strokeracer Hey Dale at the rate you are going I think you'll have it all back together by the time I catch up on your videos, but I'll definitely shout louder if I spot something like that again. Like you say theres always something. On my YL1 the speedo didnt work so I investigated the drive gear, only to find a front wheel had been fitted from an early FS1 50cc. They have the brake on the opposite side, so someone had removed the speedo drive gear from the hub to allow the wheel to be fitted backwards..... Took a bit of time & head scratching to work all that out though
Great job brother.
Thanks Cain, nice to see you here.
Приветствую, очень хорошая мастерская, просто мечта!
Thank you, appreciate your comment and thanks for watching my channel. Wish you well my friend, things are not good over there. I pray for peace for your people.
@@montana2strokeracer спасибо, я тоже молюсь, за скорейшее урегулирование. Если есть у Вас возможность, хотел пообщаться на тему ремонта техники и спросить номер телефона или почты?
@@user-fh3hf4wf1z you can email me at dsweger@bresnan.net
Hey Dave this is I know what works good on a pair of steel-toed work boots with a plastic bag full of water will swell it to make it big enough for your foot to fit Platt I live in Michigan I've seen where they've put exhaust pipes in the freezer with water and push the dents out maybe you could try that pushing the dent out of a gas tank
I have heard of that, may give it a try, starting to get cold here in Montana, free freezing weather soon. Where else can you get something free.
amazing what that squeezing machine can do.
Yeah, they are handy, use mine a lot as you know. Thanks buddy
I am Thomas from New York nice to meet you Dale Sweger just wanted to ask a very important question I know it seems quite out of random, but is possible to straighten out my fork tubes? Been searching all over the world for some body to give me the right type answers about size and dimension of my fork tubes that is bent 20 to 30 degrees inward it’s not well worth the head ache and time trying to find new replacement fork tubes at the moment that dont fit my type of motorcycle, just wanna pay the cost of repair but mechanics have no clue if it can be done. Please help I am running out of options here.
Hi Thomas, and it is sure nice to meet you. Not sure if I could save your tubes, and couple important things to say is......once tubes have been bent that far they are no longer safe on the road or trail for that matter. The process of bending them back further fatigue the metal. The best solution is to have a new set made. Forking by Frank in Mississippi can make new ones for you. The last set I had him make cost about 375.00. If you would like me to take a look at them, send me a couple pictures to my email. Thanks again for watching and for subscribing.
dsweger@bresnan.net
@@montana2strokeracer sorry but the fork are not 20 to 30 degrees bent just was speculating, pretty much how the forks your doing on here the same way. That was I meant to say
Ok, email me if you want me to look at them.
dsweger@bresnan.net
Did you get the translation on Facebook of the at90 page?
I haven't tried it yet, I just don't spend too much time on Facebook, but I will get there eventually. I sure appreciate you telling me about it and how to translate it.
@@montana2strokeracer i added the pics of the page already translated for you...
First
Yep
second
Yeppers
talk about bow legged!,you can bend it back i bet, its not a racer,just a little street machine.
Man, not the worst I've seen, but the worst I have straightened. Think it will be fine, just amazed it came out as good as it did. Thanks for hanging out with me.