Yamaha 360 MX top end build and other repairs

[@LarryJohnson-tc7xc]

Looking good Dale.

[@montana2strokeracer]

Thanks buddy

[@douglasmeeker360]

That engine looks sharp Dale. I love the cleanliness and attention to detail. Really great to see these buttoned up. A little bit of everything in this video.

[@montana2strokeracer]

Thank you, Doug,

[@steveh7823]

I hope Dale will do another riding video before winter, maybe on the HS1.

[@montana2strokeracer]

Hey Steve, don't think the HS1 will be ready yet. The engine maybe, but there is a lot to do to it besides that. But I am planning another ride or two before the snow fly's.

[@jamesrobert-d9h]

Hi Dale, I spent parts of my childhood in Tulsa late 64 until 68. I lived just off Pine st on Oklahoma st right near the Airview drive in. Went to Mckinley elementary school and later Hamilton jr high.

[@montana2strokeracer]

Wow, thats cool my friend. I had such a great time growing up in Oklahoma. Great for kids.

[@jamesws3]

Lots of fun tips here and a cool old bike you just don't see anymore! Keep 'em coming.

[@montana2strokeracer]

Thanks, buddy, it's all about fun, that's why we do it.

[@vintubeable]

Thanks Dale, Good learning on the cylinder head cleaning and flatness, the chamfering of ports, timing setting and assembly. 👍

[@montana2strokeracer]

Thanks for the kind words, the assembly is always the fun part.

[@vintubeable]

@@montana2strokeracer True, The quality of assembly determines how good an engine can run and how long an engine can last. 👌

[@tomlee3202]

I love your videos! Could watch them all day.

[@brentnearhood8874]

I don't remember when K&N came to Wichita, KS. I started racing motocross in 1975. Phil McDonald is the name I remember owning the shop in Wichita. He road raced for the factory. I remember the guy in the shop was Johnny and he was a flat tracker. We use to go to the night motocross races in OK city. Nicky Nickels, of Nickels Honda in Wichita, KS, and others to go down to OK. to ride the night races. Nicky use to ride a YZ125 with a water-cooled head for KP Powers. His Yamaha shop was in El Dorado, KS.

[@montana2strokeracer]

I guess I didn't hear about them in Wichita, Norm Mcdonald was the owner of K & N Yamaha in Tulsa, I worked for Southeast Suzuki in Coffeyville Ks, for several years. I said in the video I bought this one in 72, after looking at the bill of sale it was Feb. 74, the engine was a 72 engine, maybe that's where I got that number. Yes, growing up in Okla. at the time there were several tracks running at night. Lots of fun back then.

[@CarlPenney-ey9ou]

I love how you take me back to my youth. I watch your videos and I learn more every time. At my end of my time working on motorcycles I stopped riding when I saw two of my friends get hit by car's.

[@montana2strokeracer]

That is so sad that you lost your friends like that, I am not a big street rider, when I do its mostly back roads were the traffic is light. I too have lost a friend and had some really injured for the rest of their life. Thank you for watching and glad these videos help return you to your youth, I sure enjoy thinking about how things were and still playing with these old bikes.

[@jimmymckay73]

I wish manufacturers still made machines to be serviced and last as long as possible. It is a damn shame we have become a throw away society.

[@montana2strokeracer]

Right on Jimmy, they just want you to keep paying and paying. I like to fix, not replace.

[@peterbosch6326]

Dale, another absolutely fantastic view. You're always a joy to watch. Cheers again from Aussie land.

[@montana2strokeracer]

Thank you, Peter

[@DanteJacobson-vg3br]

Love reading the comments, almost as much as your videos. I'm rebuilding a Suzuki Tc100 right now and your attention to detail really helps.

[@montana2strokeracer]

Thanks Dante, yes folks are really generous with ideas and how to's, I enjoy reading and learning from others as well.

[@motodrone7175]

Hey Dale..I really enjoy your videos! As an 64 year old ol flattracker myself that champion 360 takes me right back to the good ol days!! I know you mentioned you might be selling it and I might be interested...keep me in mind and keep up the good work !

[@montana2strokeracer]

Hey thanks a lot. Oh yes so you understand, these were super machines built for one purpose, going left fast. Sure, when I get it put back together, I will be putting it up for sale. I'm now in my 70's so don't think I will be racing any longer, my fun now is putting it back together in its former glory. If you like what you see, contact me at [e-mail]

[@JamesMacfadyen-x2m]

Dig all your rebuilds,fixes,diags.👍

[@montana2strokeracer]

Thanks James, sure appreciate you stopping by.

[@markgaitan5107]

Here too waiting to learn. Thanks Dale.

[@montana2strokeracer]

Thanks for stopping by Mark.

[@retromechanicalengineer]

Always good to spend some time in the shop Dale. I'd click thumbs up twice if it would let me. Pouring with rain here, standard Bank Holiday weekend! Best wishes, Dean.

[@montana2strokeracer]

Thanks, buddy, I take it no one thumbs down your work. I get one almost every time, you would think if they don't like it, they just wouldn't watch. Man, we need rain bad here, thought with how it was in the spring that it might be an abundant summer. Just doesn't always work out that way. Sounds like winter is going to be a bugger here.

[@retromechanicalengineer]

@@montana2strokeracer I'm not sure I've had a thumbs down, I've had a couple of disparaging messages but these people exist. If you can't say something good, say nothing. That's my old Granny's advice. We've had a lot of rain this year. Take it easy my friend.

[@montana2strokeracer]

Granny was a wise woman!

[@petermckee1061]

Lovely work Dale. All done with your usual skill and wonderful attention to detail. Cheers, Peter.

[@montana2strokeracer]

Thanks Peter, spring is coming for you. Bet you are looking forward to it, I have heard from many friends down under that tell me this winter has been worse than normal. I think that is going to be the case for us this year. Have to get my heater serviced and hope for the best.

[@petermckee1061]

@@montana2strokeracer Yes Dale, it's been a particularly cold winter here (but certainly not by your standards). The warmer weather is sneaking in thank goodness. I'm just hoping we don't have bad fires this season. Keep well (and warm).

[@donbridgewater2988]

Good morning Dale, that engine looks better than new. Next time you do new sheathing, try spraying the wires and inside the sheath with some Awesome spry cleaner. I use it for doing a rewire. It stays slippery for a while and the wires go in real good. Another great job buddy. I am going to attempt to weld my tank half back together today.

[@montana2strokeracer]

Thanks buddy, I will look for that stuff, I will be watching your tank work, think I may try it on my honda.

[@RicardoValdes-r6w]

Good morning to my dear friend and brother Dale who I admire so much with a powerful mind and spirit. Your skills always speak superb high volumes and teaches all your viewers so very much with the amazing mechanical and technical knowledge that God almighty provided to you. A big hug to you and thanking you every time brother ..!! 🙏🙏🙏

[@montana2strokeracer]

Thanks Ricardo, I sure appreciate your kind words, sure hope you have some awesome projects you are working on.

[@RicardoValdes-r6w]

@@montana2strokeracer I am a retired soon to be 65 years young disabled veteran dear brother and former Department of Homeland Security officer of the 9/11 attacks era to our great country. I do not have a project and do wish I had a bike to ride around here in Cape Coral Florida. I appreciate all your videos of exceptional work and knowledge and above all the blessed spirit and mind that our Lord provided you. God bless you more and more each day. Your friend and brother. Ricardo Valdes. !!

[@budlistar5312]

I moved to Tulsa from Akron Ohio in 1972 to attend Spartan Aeronautics. Bought eight bikes and three ATV’s from K&N in those 52 years. It’s only a couple miles from my house here in Jenks. It’s cool to be able to make that connection with you.

[@montana2strokeracer]

That is cool for sure, my family lived in the Nowata area (they called it green country back in the day), they are all gone now, and I moved to Montana as my last permeant change of station with the Air Force before I retired. I have been back a couple times, but just can't take the heat and humidly any longer. Still have a sister in Tulsa and Bartlesville.

[@budlistar5312]

@@montana2strokeracer Yep, still call it green country although it’s kinda brownish right now.

[@chadpyett6441]

Excellent am excited to hear it run again should be a rocket

[@montana2strokeracer]

I am too, just hope I can start it without breaking a leg. LOL

[@bigmurr725]

Thanks Dale , I learn something new from you on nearly every video . I am sure we all enjoy each and every video You make .

[@montana2strokeracer]

Thanks Murray, it's a lot of fun putting these together, I worry about running out of good content. Maybe not for a while though. I have got to start learning how to make a pipe for the 250mx.

[@markaddy53]

nice job dale as always lookin good carnt wait to hear it fire up next video please

[@montana2strokeracer]

Me too Mark, always good to get to the loud part. LOL

[@cainbeeping8480]

Looks great Dale. Good job brother

[@montana2strokeracer]

Thanks Cain, just hope the kicker will work, I don't want to push start this thing. LOL

[@richb419]

Hi Dale, you can 3d print those grommets using TPU filament. Amazon has printers for a very reasonable price. I purchased a Creality Ender 3 3D Printer, I'm not very good at it but it sure filles the gap. Rich

[@montana2strokeracer]

Thanks Rich, just not sure if I have learning how to do it, in me. I know folks are making some remarkable and badly needed parts using those 3d thingmajigs. Pretty sure I would mess more stuff up than not.

[@richb419]

@@montana2strokeracer Hi Dale, you can bore and rebuild engines I'm sure that you can do that. I still fumble around with it. Mabe one of the subscribers could print one for you. and send the (.stl) to you so you can print one when needed. Rich

[@RichardCarroll-w1f]

Greetings my friend from the Rooster. I have two 78dt400's with extra top ends. Could you please clarify for me that the pistons for the Yamaha Reed Induction must have the two holes on the intake side of the piston or will the wiseco piston work as well ? I'm 70 can't remember. Luv Yer Show !!!

[@montana2strokeracer]

Hey Richard, yes, the 78 models will have the reed valve holes in the piston on the intake side. A Wiseco piston will work fine, as long as it's made for your model and will certainly need the holes in the intake side of the piston.

[@RicardoValdes-r6w]

Always so proud of you..!!

[@ThePerfectSeason1972]

Great video!

[@montana2strokeracer]

Thanks Stanley, appreciate you stopping by.

[@jeffgray6693]

Dale, I like your videos. Have you ever installed a Vape 12 volt system on a DT or RT? A lot of people are installing them now. If not, it would be a great video to watch.

[@montana2strokeracer]

Hey Jeff, no sir, have not messed with any of the vape systems. I have put MX cdi systems on point and flywheel bikes. I have heard good and bad about vape but have no experience with it. The big drawback to me is the cost. Pretty pricey I will see were the journey takes me, but I don't think I want to pay the price at this time.

[@brentwalls2730]

I always learn new tricks watching your channel. I appreciate how thorough you are, for example soldering the new connectors after crimping. What brand of screwdrivers do you use..I don't recognize the black and blue handle?

[@montana2strokeracer]

Hey Brent, I have a set of Vessel for JIS, the ones you are referring to are also JIS, but the name is worn off, pretty sure I got them from amazon. I just looked on amazon and I don't see them there any longer. I really like the #3 one it's the one I use most often, and they are magnetic.

[@brentwalls2730]

Thanks for letting me know. I've never heard of them so I'll have to search them out. Thank you

[@Daniel_Martin152]

Hiya Dale, really enjoyed this video, a little bit of everything. I must ask, where do you buy that plastic sheathing from? I have about 6 bikes here that could all use a magneto freshen up. Really looking forward to seeing how you tackle building the pipe for the 250. I’m fairly young at 30yo but building pipes is a skill I insist on learning before I go. I know you’ll do a stellar job. Take care Dale. Dan

[@montana2strokeracer]

Thank you, Dan, I get all my wiring supplies from Vintage connections.com I have been dragging my feet on that pipe, I built a couple when I was younger, and they were nothing to look at. I am hoping to do a better job with this one. I will get to it, at some point I hope, I am really chomping at the bit to ride that machine.

[@davidnelson6893]

Yes that a motor Peace out

[@montana2strokeracer]

Thanks David.

[@marcus-rs9ob]

Top

[@montana2strokeracer]

Top?......not sure what you're talking about.

[@pete7971]

Like the video. You gave me a couple of tips. I have my 1974 sc500 I still keep going a works great. Yours has a clutch assembly actuator which is different from mine. Did you design that one?

[@montana2strokeracer]

Thank you, Pete, that SC500 is an awesome machine, the clutch actuator is not my design, I first saw them in the early 70s while I was flat tracking, I have made a couple over the years and just made one for my 250MX a few months ago here on my channel, check it out here if you like. kzbin.info/www/bejne/aXjXqpxuZd9sp8U

[@JohnnieBravo1]

Holy Cow, Dale! Is that bench top like a 1" thick steel slab ?? Or is it some substrate covered in sheet metal ?? That engine cradle hardly moved when you were working with it. I'm definitely jealous of that thing.

[@montana2strokeracer]

Hey Johnnie, my bench is made from 2 x 6's, then one mounted up and down in front, then 20-gauge sheet metal on top. The holder is mounted in the rear through a 2x6 laid flat. The two front mounts are mounted to the 2x6 vertical, otherwise the bolts run through the 6-inch portion, yes, it is solid. I use this mounting fixture to build ford 9-inch differentials and automatic transmissions. It is stout. It's an OTC brand #7020.

[@mikeflohr4043]

😎👌

[@Mariano.Bernacki]

Thanks for the content Dale, I had a question 36:46 when you are installing the intake manifold, it has been my experience that NOS rubber, even if new, tends to be a little less pliable than actual new rubber. Is it OK to use a little sealer there (even if not specified by the manufacturer) to prevent a vacuum leak resulting in lean running if the rubber does not seal perfectly? I'm talking of course of using gasoline-resistant sealer, and just a very thin coat so as not to have overflow outside or worse inside into the reed valve area. The intake manifold on my Yamaha RX-100 is a little old, and I can only find NOS ones rather than recently manufactured ones.

[@montana2strokeracer]

Sure Mariano, with these old bikes, you just have to do whatever is needed to fix them and make them operate again. There are no set rules, a lot of trial and error here at my place trying to get things repaired. There are some aftermarket places now making a lot of these rubber manifolds, my problem is they are never making them for my bike.

[@bigmurr725]

Hey Dale , some time can you please give us your opinion on the break in procedure . Thanks Dale .

[@montana2strokeracer]

Sure, thing Murray, think I have covered it before but probably should include that in one of these boring videos. Nothing really special. Just take it easy for awhile.

[@bigmurr725]

That’s what I do too write it varying speeds but not to rev it in excess thanks Dale

[@frankdillon6127]

here, Guy`s!

[@montana2strokeracer]

Glad to see you made it Frank

[@customgaragemoto7590]

👍👌👌👌👌👌👌

[@RadioReprised]

Make around 35 Horse?

[@montana2strokeracer]

The factory HP rating was 39, this one should be a bit more. Maybe 45, who knows.

[@donbridgewater2988]

Dale, one more bit on useless info. When K&N Yamaha sold, it was bought by Malcon Smith. It was the first bike shop he owned. that building is now gone and Malcon Smith has a huge new super store only a mile from me now, Malcom Smith Motorsports.

[@montana2strokeracer]

So, he bought the property and building but not the dealership. I have seen pictures of his place now. It's like a museum. There are some KZbin videos on it.

[@donbridgewater2988]

@@montana2strokeracer ,he did buy the dealership, it was called Malcom Smith’s K&N Yamaha. He dropped the K&N after a couple years. K&N air filters is still here in Riverside, Ca. But it was sold to another company years and years ago.

[@GroovyVideo2]

I had DT2 MX - throttle stuck Full open and I found 2nd power band I did not know it even had - did not end well

[@montana2strokeracer]

LOL, I am sure it didn't, have had some incidents like that myself. They always hurt bad.

[@earleclemans4836]

Why do you quench the gasket after heating? You are undoing the annealing

[@montana2strokeracer]

This is the way I have done it for years, may not be right, but the gasket is very soft and flexible when done this way.

[@104ducati]

@@montana2strokeracer You're doing it correctly Dale, cherry red and into cold water, quench brings the surface crap off also.(and it makes a very satisfying noise 😊). Another good video BTW. Keep 'em coming.

[@montana2strokeracer]

Thanks buddy, its always worked for me.

[@donbridgewater2988]

That bike came from K&N Yamaha? I grew up about two miles from the bike shop out here in Ca. Was it Ken or Norm you bought the bike from? I went to school with Norm's son, and my best bud from school got chomped on by a great Dane they had one day...LOL

[@montana2strokeracer]

Yes, it did, they sponsored all the best riders in the area. I believe they moved out to Tulsa in 71, so I bought this one from them in Feb of 74, for some reason I thought I got it in 72, it is a 72 engine, that's probably what was in my brain. Looks like Ken was the salesman on the ticket. It was very fast, and I had a lot of fun racing it.

[@frankdillon6127]

was this bike converted to right side shift?

[@montana2strokeracer]

These bikes came with the capability to switch to left or right I think till 74, when it became mandatory to have left shift in this country. The jap bikes not so much but a lot of the Spanish, Italian, and British didn't want to convert. It was pretty easy on these to switch them over you just had to drill a hole in the RH cover that was already located for you, then move a snap ring and slide the shaft out the RH side. It was a great thing for the flat trackers in the day.

[@frankdillon6127]

@@montana2strokeracer thanks Dale interesting. my late 60`s flat track/TTdays were a struggle with the left shifters. little hard to turn left at 60 mph and keep the shoe planted with the left hand shifter.

[@cainbeeping8480]

Here

[@DaleWesley-d7i]

🍎🍎🍎😉😉😉

[@jamesbanjomanjohnson]

i don't know bout you but im ready 4 some ride'n instead of all this wrench'en, let's get on the seat and test em out...

[@montana2strokeracer]

I know James, but my channel is really a Maintenace and repair channel, although I do some riding from time to time.

[@frankdillon6127]

Man, those aren't ports they are windows, remind me of the ports on a old ford 427 FE engine.

[@montana2strokeracer]

Right on brother, I know what you're talking about on the 427 wedge.