Barn Find- Look Inside the Engine with an Endoscope. Yamaha RD400 Service Manual Found
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- Опубліковано 11 бер 2022
- Here I look inside the Yamaha RD400 project bike with an endoscope and assess the mechanical condition.
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I would enjoy watching you rebuild this bike. Looks like an interesting project and I love to see things restored and given new life. Happy to see you are making new videos. Thanks for sharing.
I would follow the restoration as I enjoy doing those types of things myself
No shorts, I would like to see each step of this restoration. Keep the videos coming as I love your content!
A build series would be awesome!
Who wouldn’t want to see this bike be restored and brought back to life? Looks like it would be a great series
It looks like updates will be in order on this project. Thanks.
Yes, please show the progression of the bike refresh. Thanks for the the content.
After seeing you revamp the van. I can’t wait to see you revamp the bike. I’m sure you will have it purring in no time.
It would be very interesting to see you refresh/rebuild this bike. Hope you will share the progress with us.
A full rebuild series would be great.
I'd love to see videos of how you work through this project. 1977 was a good year for me!
Steve, that Yam looks totally salvageable. Please keep us posted on your progress.
I like this new project. Everyone in our age range used to have an old bike they had great memories about. Good luck Steve.
Thanks Dan
For sure .... The Good ole days !!!
Really looking forward to your project Steve.
I am super excited to see more! Please do more vids like this
I want to see a detailed series of a full tear down and rebuild. I especially want to see you get the rust out of that tank.
I would love to see your progress on your regular channel on this bike. The way you do things is inspiring.
WOW Many great memories on a Red 1977 RD400. Wheelies for days.....
Hey Steve , ... YES !!! Would "definitely LIKE" to see your progress on the bike .... (You can tell by my channel photo that I LOVE older motorcycles, That is my 1984 Honda GoldWing Aspencade 1200 , Still running strong). I have taken it from Massachusetts, up into Maine, NH, even up-state NY to the Catskills camping ... runs like a dream !!! Can't BEAT the simplicity & reliability of these older bikes.... a little TLC goes really far !! (Rick from Massachusetts)
Love the Goldwings
I didn't even watch it yet and I gave it a thumbs up. Lol
I vote to see all the work in as much detail as you care to show us. But I do understand it would be a big effort to video all of it which might take the enjoyment out of the project for you.
Frustrating parts of a build are always draining. I'll try to keep those to a minimum.
I’m not big on motorcycle refreshing but like your methodical approach to work. Ironically I also follow Jenny’s Garage who only put up occasional UA-cam videos, and the fellow uses unorthodox and clever ways to get a motorcycle and other engines going again. So, who knows? This might make your views explode with a follow along on this bike.
Yes. Complete rebuild video, please!!!
Looks like a great find. I would enjoy watching a bit of a restoration video. I can remember going to Sears Point Race Track and watching the
Nice find Steve, I would like to see a full build on this. It takes me back when I had my 82 rd350 THX for the memory bump .
You bet
Thank you, sir. Have a great weekend.
Hey XS, great find and excited for the progression on the RD. I had a '76 and rode it though-out High School in NorCal. They are fun and fast! Enjoy your new scooter!
I would enjoy following your restoration. A few years ago, my back went out, and I had to quit working on vehicles. Our youngest son then took over the garage, rearranged everything, and has since moved out. Somewhere I have a Haynes 1978 RD400 manual that I couldn't put my hands on this past week. ☹ The top end looks like it'll be the big question. The gearbox should be fine. I see the original airbox is gone and it has K&Ns. It also has chambers instead of the stock exhaust. I put braided steel brake lines on, and it really made a difference in stopping power and brake feedback and was money well spent. That gas tank may need to be epoxied on the inside and they make gas tank paint. I always had trouble with the countershaft seal, and usually wept oil on the left side, but your bike looks like it leaked bad. I used to run Michelin tires, with a racing compound on the front, but tires have changed a whole bunch since the last millennium. Good luck with the rebuild! Take care.
Thanks for the tips. Also, what is "Chambers" instead of stock exhaust?
@@XplorerSteveDIY Exhaust chambers are tuned exhaust pipes for two-strokes and are analogous to "headers" for four strokes. They reflect the pressure wave caused by the exhaust ports being opened back up the pipe and aid in extracting more horsepower. They usually narrow the powerband, making the engine "peakier", but with higher horsepower. I liked mine.
back in the day I had a 75' yamaha rd350 orange 6sp lots of fun on the twisty roads, the kawi's had a tough time staying up.
They're fun to be sure.
Thanks for sharing Steve. Looking forward to seeing the restoration buddy. 👍
Good one Steve, not much of a motorcycle guy , but would enjoy watching you refurbish that thing!
🇺🇦☮✌🏻
Love to see you restore the bike. It's a wicked fast bike.
I would enjoy watching a motorcycle refresh. Did the motor turnover? Love the sound of the early 2cycle rice rockets.
It is seized but I have a plan.
I had a ‘74 RD 350 A. That’s the predecessor to your RD400. I added a windshield and JC Whitney saddle bags. I toured half the US. The 400 is smoother, quieter, and has a broader power curve than the 350. You have aftermarket air cleaners, aftermarket pipes, and aftermarket cylinder heads. I would lose the fairing - it’s shot, anyway. Fun bike. Good luck.
Good tips. I remember JC Whitney catalogs.
I was on my way to pick up that bike in Las Vegas. That bike was stored for me years ago and before I can get there, he sold it out from under me. I’d like to buy it back.
Hi Steve! I recently got back the '76 RD400 I bought new and am doing a complete rebuild. I redid my '92 Seca 2 last winter and it turned out great. Currently riding a '15 FZ 09, LOVE the Yamahas.
Very cool! Congratulations on getting it done.
I would enjoy watching you rebuild the bike and get in in running order. I have been into bikes since a young age and currently own a number of street/dirt bikes. I rode a 1973 Yamaha 175 2 stroke trail bike as a teenager in the 1980s. As far as your rusty gas tank, I had a fiberglass bodied dune buggy back in the day that had a rusty gas tank. I got tired of clogged fuel filters so I cleaned and sealed the gas tank with Eastwood Gas Tank Sealer. It worked great. I didn’t come close to getting all the rust out but it still worked great by coating and sealing the rust to a point that I never got rust in my filter or carbs again. They still sell the sealant. I just bought some from amazon to seal a leaking oil lantern and again it worked great.
Thanks for the tips.
Good luck on the bike, and definitely do update videos on the progress of fixing up the bike. NJ .
When I was a very young manl the RD400 was such a cool bike! A little story about the RD400...I had a friend who bought one. One day he came to my home and bragged to me how fast his RD400 and proceeded to tell me how it was way faster than my small block '70 Camaro.
so of course we decided to drag race where I proceed to beat him (to my surprise). A few weeks later he comes over to show me his new expansion chamber pipes and proceeds to tell me how there's no way I could beat him now. In the mean time I had changed the rear diff gearing in my car from 3:08 to 3:55s so we pull up onto the road where we had raced the last time where I proceed to beat him again. I think he was in disbelief as he kept shaking his head saying he couldn't understand. well that was the last time we raced and we never spoke of it again. but I still thought it was a cool bike. I always loved the sound of a twin engine two stroke with expansion chambers as it always reminded me of the sound of a road racing bike.
Thanks for your story
I applaud your ambition Steve! As a former MC dealer I toyed with the thought of resurrecting one of my classic favorites. I found the market for NOS and repops to be so limited and inflated I turned my attention to my other hobbies. I hope your intake manifolds are in tact, that can be one of the rarest and expensive parts on a classic bike like a RD. Please keep us up to date. Your Channel is Great!
Thanks for the insight.
Get her running!!! I dreamed of having that bike when I was 16.
Me too
Would love to see the progress updates!
I would also love to see videos of your progress on the bike! What a great find.
For sure, I’d like to follow your progress on the bike. This particular model has a soft spot in my heart, from my youth.
Big project. Looks like fun.
I love restoration projects Steve mainly because I am a visual learner. So no issues with you showing that rebuild.🙏❤️
yes xplorer steve, we want video updates on the yamy rebuild thanks!
Would love to see some rebuild videos on this bike.
I would really like to watch your progress. I am in Vegas as well I really enjoy watching your videos.
Awesome! Thank you!
Show it all Steve...very interested
Looks like a fun project. Given your down to earth, attention to detail approach in all you do, it would be nice to follow the progress on the bike in any way you choose to share.
Noted!
Now that's a project! Reminds me of my old 80's ATV days. I did a pretty substantial remodel on a 1985 FL-350 Odyssey and several ATC's years ago (always Honda). Two-strokes were the first type I retired from as I reached the age where injuries are forever. Always wanted to build a Cafe-style bike, but moved on to bigger vehicles. I look forward to seeing what you do with this!
Hey. Hope I can handle it. Otherwise it will be a fixture on the side of the garage there.
Inspiring! I would love to follow your progress on getting this up and running.
Steve - let me open by saying my wife and I love your channel. We're all about the same age so SURPRISE, we have a lot of the same interests. When you rolled out the RD400 the memories came flooding back to us - my wife and I have been together since we were 15-16 years old and back in High School the RD400 was my coveted speed machine. I ultimately ended up with the first in-line 4 KZ-750 and my now wife of 38 years used to take that thing everywhere. Remember the old KH750 two-stroke triples? I almost killed myself on a KH500 one day but that's another story...
Anyway - please show the rebuild on your RD. I know it's unreasonable but I would watch every second of your footage and then watch it all again.
We just sold off our last bikes - my wife rode a Suzuki Boulevard and we had a Gold Wing, and we also had a Harley soft tail I turned into a solo seat low rider... Too many crazies on the roads up here. Avid campers too - we've been at it for almost 50 years now.
We're really bad you're back and get why you took time off. We're in the same boat Steve - we're also moderate preppers (no tin foil hats...yet) and we get where you're coming from. We're also planners (retired debt free at 48) and can't believe the things going on in the world today.,
I appreciate your comments and stories. Been waiting for the weather to warm up, like now, in order to attempt to un seize the motor and de-rust/clean the gas tank. This will be a long project and I will likely give some semi-detailed updates. There is not one thing on this bike that does not need rebuilt or some major attention. 20 years under the desert sun will do that. My efforts will likely be off and on. ha. Take care.
@@XplorerSteveDIY Hey man - Just re-read my post and I meant "we're glad you're back" instead of the auto-corrected mess up above. Vicki (my better half) says she wants to see the build too, and not to worry about the success - ALL ROADS LEAD TO HARBOR FREIGHT! We live on an Island up in the Pacific Northwest and our closest one was a couple of hours away in the direction of Seattle (RUN FORREST, RUN) and we will not go to Seattle.
Anyhow - enjoy the weather - we still have a little way to go - we're finishing up the winter storms (blowing gusts to 50-60 right now..) and then we'll be in the dry season again until next October or so. Clear skies and mid-70s all summer long.
Later tater. We'll be watching.
I'd love to see the restoration. Your videos are always very engaging. Thank you.
I will probably try but it seem like it may be a pain with greasy hands and camera. ha.
I look forward to you rebuilding this bike. This project is very interesting to me and look forward to watching every video.
It would be cool to follow along as you go with the bike.
It would be interesting to see the rebuild. I grew up riding an old Honda XL 125. I think it wad circa 1976. Love the older bikes.
Full series please 👍👍
Don't forget this has a Mikuni oil injection pump which is a common failure point. Also I think there is a screen filter in the oil reservoir on the side cover. I have the 350 version of this bike.
Definitely keep us posted on this project!😀👍
Great times ahead working on this refresh! Sure would be nice if you shared some video on that interesting experience. I would like to know your tips to get old things working and contacts of people who do specialized repairs beyond diy capability like rim straightening. Thanks for sharing.
I like resources named too.
Awesome find Steve, I hope you show the progress of this project it looks very interesting. Maybe a 10 to 15 minute video would be cool. Like you I depend on a reputable manual to work on a machinery. Anyways looking forward to see what you decide to do. Have a blessed day Steve. Aloha from Kansas
Awesome video Steve
Great project , luv to watch what you do.
Thank you very much!
would love to see you work on this bike. Thanks Steve!
I had a 76 that same color. Great bike. Make sure you have a good set of JIS screwdrivers to use on that bike. A regular phillips will lead to many screws having the heads stripped trying to get them loose. Good luck with your project.
On these bikes with their alloys and steels I usually use a impact driver and a couple of taps to loosen them, but yeah I know what you mean
When I was in high school I had it's baby brother, the RD350. Great little bike, and being a two-stroke it had more power than most expected from a street bike of that displacement. I liked the Autolube feature which has a seperate oil tank under the seat where you put in the two-stroke oil so you didn't have to mix it in. I also liked the reed valves which would open from the vacuum created when the piston went down and allow fuel in. Same for the exhaust, but in reverse. Simple and effective! Two cons do come to mind: 1) Can't see squat in the mirrors due to the vibration. 2) The vibration can be... shall we say, "numbing." I rode it from San Bernardino down to San Diego and back and my backside could sure tell. LOL Still a great bike and a lot of fun! :) Hope you enjoy bringing it back!
Good points.
Had 3 of these,great little bikes !!
cool.
You know, you could make a killing with that endoscope doing unlicensed proctology work. Enough to easily pay for the bike restoration. I'm always here to help with suggestions.
Thanks LS1 that helps.
LOLOLOL .... Wayyyyy FUNNY
@@ricks.1318 don’t encourage him Rick.
Definitely would like to see the progress on this restoration
Because of the elimination of the OE foot pegs, OE cylinder head replacement and the addition of the Cafe Racer style fairing , this could be a race bike before. Since it is a gravity feed fuel system, you should get the engine running first by using an aux fuel tank. I cleaned a poorly rusted motorcycle gas tank before by filling it with finely crushed stone, sand and gasoline. Tied it to my kid skateboard so that I can slosh the mixture( back and forth) inside easier. Believe it or not, it worked. Make sure you remove the shut off valve though. The fuel screen on the shut off valve will be damage if not remove. All the best on the project.
Thanks for the tips.
@@XplorerSteveDIY Regarding to the seat. If you wanted to upholster it economically. I would recommend this. Use an electric knife for carving turkey (this is a must knife to use on foam to have a better control). Cut the bad part of the seat foam. Make straight cuts for easier gluing. It looks like the foam against the set pan is still good. Try not to disturb it if possible. Then go to Galaxy Foam here in Las Vegas and buy the correct foam density. Cut the foam larger than you need for shaping. After you glued the foam with 3M Foam Spray adhesive, use a 4 1/5 disc grinder with 60 grit flap disc and shape the foam accordingly. Try it on a scrap foam first to get the feel of it. Then make the seat cover. The reason I suggested this is because to make a foam from a foam block and correctly fit it to the pan is almost impossible. When they make OE seat foam, they use a mold to properly fit to the seat pan. It can be done but I think it will be a lengthy process. When I viewed your channel way back, it seems that you did upholstering before. I saw a industrial sewing machine from the background. I hope this helps. I like to see the project at least rideable. Looking forward to your channel notification.
Nice find. Yeh definitely film your progress. That bike would look good on the explore. With inflation you’re gonna need it. Cheers
Damn inflation. Also gas.
I would love to see a full rebuild. 😂
Lets get started ! A video a week. You can do it, Xplorer Steve DIY
We'll watch anything that you post. It would be nice to see what you have to do to get it running.
....like to see what you do with this one.
It would be wise to go through the engine thoroughly as part of your refresh, or it will likely cost you more in the long run. New crank seals and a rebuilt crankshaft as a minimum would be a sensible move. These are great bikes to own and will give a lot of enjoyment but only if you build them right, otherwise they can be troublesome and problematic.
Great point!
Hi Steve, I would love to see you restore the bike. I had a 350 Honda CB in my younger days which I bought old and drove to work in the summer. I know you will do a awesome job on the 400. I’m a long time follower that has stuck with you even through your dry spells👍. I love your Explorer and enjoy seeing it too. 👍🇨🇦😊
I appreciate everyone who sticks around for my week upload game. I try to do better but sometimes life just happens. Thanks for your story
love old yamahas
Way cool.
Also, be careful about the type of 2-stroke you use in the oil injection system. There are synthetic 2-stroke oil that will not mix with petroleum base oils. They will cause the oil to gel and not flow through the oil injection pump. I’ve seen engines destroyed because of this. I ran my RD350 on a strict diet of Yamalube 2-stroke ( not Yamalube R). My engine performed well and there was minimal carbon buildup at a top-end job.
Yamalube. I'll do it. someday. maybe. I hope.
just curious how's the RD 400 coming along?
It would pretty cool to see you go through the project but I know it can be time consuming and difficult to film while wrenching so I think shorts with incremental updates would be a good alternative. Either way it would be interesting to see how this project ends up!
Noted
Are you still around? I enjoy your videos.
Hello, I hope all is well. Any updates on the bike? D
How is it going…sure is a lot of work…and might be hard to hide parts…but think you found a diamond in the ruff…an
Apple Cider Vinegar would work better than the white vinegar. Throw some old nuts or screws in there also to add some abrasion. Let it sit for days then agitate and let it sit again. Drain and repeat. Vinegar takes longer but will do the job. Or do the quick route and use some muiriatic acid. But careful to do it outside as the fumes will flash rust anything near it.
Thanks for the tip
@@XplorerSteveDIY A small length of chain can also be better instead of the nuts/screws. Easier to remove when done cleaning.
Wow... what a find Steve.. I have a RD350 I just got running. Have you heard about the Vintage bike night in Vegas? Its the 3rd friday every month. I'll be there this friday if you want to come by. 107 E Charleston #150
I will try to make it by.
@@XplorerSteveDIY Awesome.. Hope you make it.
please put the resto work on here!
Would you be fixing this bike?
And if you fix it would be willing to sell it ?
I'm very much interested to buy RD 400 bike in a perfect working condition.
I'm living in Melbourne Australia.
@13:21 that is gorgeous! I'm envious. Why did YOU choose an RD400? Fix it. Ride it.
In 1977 I was a sophomore in high school. Always love the smell and sound of two-stroke.
This came up in the local classified. I lowballed and he excepted.
It that a Bridgeport mill?
Yes. Series 1 with Vari-speed head. And off to the side is a Hardinge HLVH. Good eye.
I like your posts if you want to shoe the rebuild of the motorcycle that's cool if not that's cool too.
I would load the cylinders with mystery oil and let them soak for days. By god that needs a real steam cleaning, I say steam because of less water around electrical components. Hay saw happily houseless on Chris-Travels think he might make a comeback.
I was just wondering about him the other day.
Steve i think if i lived in Vegas i would have been your second best friend after Jesse
i Had 1982 RD350LC while in europe. yamaha never imported to usa
been offerd same bike rd400 c modal 1978 £4000
Really disappointing I used your discount code, purchased a manual and could not view or download the manual.
I’m sorry to hear that. My first experience was good and the quality of the print and pictures was great. Hopefully, come Monday things can get straightened out with them.
@@XplorerSteveDIY Unfortunately they have only gotten worse the company after trying to work with me at first but being unable to fulfill my order because they don't offer my very common 2005 GMC Sierra which I don't understand, but now they're refusing to refund me my money.
1977 RD 400 "D" in French Blue
Looks to be almost Original Except for...
J&R Chrome Expansion Chambers Decent Pipes...You get to keep the Center Stand with these pipes
DG Sunburst Radial Heads ...Higher Compression ...Improved Squish Configuration
Rear Sets / After market Foot Pegs + Linkage....Always Come Loose Need Adjusting ...Noisy Metal on Metal Sounds..I did Not like them....Made My own from Stock RZ350 parts
Stock Air Box Delete / Now With Paper Air Pods ..K&N's Be sure to Take Note of Main Jet Size / # Jetting = Critical
Handle Bars = Super Sport type
This Bike Looks like one that was Purchased New with Mods as a Package Deal
I Seen A lotta guys Buy 1977 / 78 from the the Dealers with Mod Packages like this
Heads, Pipes, Jetted / Tuned Carbs, Rear Sets foot begs & After Market Handle Bars with Mirrors and the 1/4 Fairing Paint Matched
My Suggestions
Steel Braided Brake Lines Frnt & Rear
CDI Electronic Ign Unless You are a Master @ Points... Setting BTDC Requires Gage + Timing Light
Making Sure the 2 Point Pads are Lubed....+ Checking Point Pad Wear for Break-in. And I always used a Dwell Meter Also To Dial them in for MAX / Optimum
If you Crack open the Bottom End Cases (Highly Recommended)
Inspect the Crank Assembly
Replace Main Brngs as Needed
REPLACE CRANK SEALS!! Critical Item for 2 Strokes!! Seals Are Cheap
Have the Crank "Trued & Welded" Well worth the $80.00 to $100.00 Bucks
The Oil Leak = Shift Shaft Seal.....Pull side Cover....Use a Pick to Remove ...grease New one be sure the Shaft is Clean ...Sand a bit if needed
Also Check the Neutral Switch Light ....3 Phillip Screws ....Replace O-Ring if Leaking
Pro Tip: whenever NecroMancing a 2 Stroke .....Verify Crank Seals are Good ...NOT Dry & Rotted
You don't want to get the bike Going ....only to have the Crank Seals Fail ...and Blow the Motor
Crank Seal are Pretty Cheap ......
Thanks for the very well thought out commentary. I did crack the bottom case and found that there is no rust. However, all the oil had leaked out and in the hundred plus degree Las Vegas summers for over 20 years. Left the bearings gummy. It’s all a part now and I’m going to be painting the frame and other parts that were black. There is not one item that doesn’t need attention with all the dry rot from the arid desert. I am in no hurry, but would like to find a good engine rebuilder as I feel this is outside of my skill set.
What's happening with this?
I think it will be interesting to watch, but when it's done, will you be able to handle it. I remember a few years ago you fell off a much smaller bike and hurt yourself. Only joking, I"ll be watching. good luck
I may not be able to handle it so I will just wear more safety gear.