Where is he? Is he alright???

ive been watching his videos. and telling myself "man imagine a mix with 2stroke stuffing" soooo much hp woooaaaahhhhhh

Exactly my thoughts 👍 Not like I'm going to be mass producing them or anything, so it can take whatever time it needs to take.

@@Hollaendaren Yes! You will do an incredible job, I'm sure. It will be worth the wait to see this engine in action.

@@Hollaendaren you had enough time yet?

@@patrickbateman2869 let it age a bit more, still building flavor

@@the_red_crayon5278 fucking 2 years later...

Thanks, I completely agree :) I obviously want to get it done rather sooner than later myself too, but rushing things seems like a really bad idea. Thinking of every way things could go wrong is a big part of it, but if you can think of it before it actually happens and then prevent it that's worth a little extra time :)

Thanks! So am I! :) But me and my time optimism...

I know it's not an easy task and I'm pretty nervous about it, but want to give it a go, if I mess it up completely I at least tried and hopefully learned something :) this whole project is mainly about learning new things, I'm not an expert at any part of it but never learn without trying..

Just kick it like a men..

Without decompression switch starting a +500ccm engine manual is some Sirius workout

@@9736grunn So, real men purposefully make things more difficult for themselves simply to appear more tough? That description more resembles an idiot.

@@TheLtVoss, while my RD-400 was only 400 CCs, it was STUPID easy to "kick over." All I really needed to do, was rest my foot on the kickstarter, and allow it to fall. (Well, not quite that easy, but not much more difficult.) steve

@@steveskouson9620 the. Your dr had an automatic decompressor or your piston ring are so worn you're losing a stupid amount of compression and power :s Kicking a 400 one cil over that easy just doesn't sound right haha

You guys are awesome, maybe not for guaranteed success but mental support helps too!

@@Hollaendaren do you have instagram? I have a mint 1970 640 tnt or do you have facebook? Thanks !!

If you are interested, an old project which makes a 2 stroke engine more efficient: kzfaq.info/get/bejne/fdqHhLmZzM2cdZs.html

Shipping would be pricey ;) I'm afraid it's going to weigh a ton. But I'll take a little extra weight if I can actually get it to work.

@@Hollaendaren I know it will work with a bit of tweaking. We know you can do this. Get it running first.

Thanks, I'll do my best :)

Ahh, I forgot about those. I would need a slightly undersized shaft though, or something, because the bearing journals are slightly undersized, like 61.98. So I'd need to put in a shaft that is maybe 61.9ish while measuring to not crush everything to 0 or the case bending to the straightness of the shaft. How much force is needed to compress those? Like would it work if I pressed down a shaft on them by hand?

Thanks ;) I was actually going to clean it *before* I filmed this stuff, but I was in a hurry and didn't want to have to wait 2 weeks...

@@Hollaendaren AS you say. You will have a lot more space when the snow mobile chassis is finished.

Exactly, there's some progress at least. I actually filmed modifying the crank parts but I can't find the footage anywhere now :/ may have accidentally deleted it.

Whoops, one can never have enough disk space...unless it’s so much you can’t find it back.

Thanks! I haven't done this before, doing it to learn new stuff, so we'll see if I can pull it off :)

Thank you! Greetings back from Sweden :)

The problem is that the bearing journals are slightly undersized, like 61.98. And the bar is 62.00 like the bearings. So it'd just crush whatever I put in between to nothing. I think I need a slightly undersized bar with the ends normal sized, then check the play on the undersized part with solder or plastigages.

Get some plastigauge,it's pennies.

Wondering if something hapoened to him?

@@juhomaki-petaja i think he died

@@politecat3299 really! I was afraid of this.

The conrod pins are a lot shorter than the main pins. 17 mm gap vs 85 between cylinders. Also them being away from the center probably means a lot less torque on the conrod pins. I don't think they matter nearly as much as the main pins.

@@Hollaendaren from my experience with the Polaris triples the torsional stress on the connecting rod journal was always the fail point. Even after we would heat press and weld them in place they would eventually become out of phase, pigeon toed and take everything out with them. Hopefully with your 90 degree crank it will run much smoother. I would still suggest only doing 30mm on output side and leave the rest alone will get the same results with less work. great job so far though! Couldn't find a CNC router to custom make your crank case? Maybe 2 stroke stuffing could cast you one!!

Jag tar det på svenska.. Tack! Vi kanske är nästan grannar, jag bor en bit norr om Boden.

@@Hollaendaren Nice, så roligt och inspirerande att se dina videos. Hittade dig via norrmannen, också coola projekt han gör.

I actually own that particular triple now :) unfortunately the previous owner removed the lettering and decals so it's hardly recognizable.

@@Hollaendaren I love this stuff and cant believe you get to work with it. Hope u enjoy it as much as i do. best regards and best of luck.

Hell yeah I enjoy it a lot even if it does give me headaches every now and then :) Thanks!

I'm pretty sure that's exactly how he would react ;) 🙄

engineer, i'd say - rather than mechanic

The gear in the center is/was to drive the rotary valve and coolantpump, the 521s are rotary valved liquid cooled engines. I only bought the cranks, don't have the rest of those engines. It sounds like the TZ750 is very similar to the 750/800 engines that were in the Yamaha VMax4 snowmobiles. If the long crank doesn't work, center output with a jackshaft is my plan B.

Thank you. And go for it! There's lots of 4 cylinder RVs out there so that's a proven concept. Probably a bunch that were made from 2 670s as well so it's gotta be doable :)

I’d rather build a 670/583 to scale to a 50cc Rotax twin to run on a moped...

Thanks! I actually have a bunch of relatives in Canada, in Ontario. Haven't been there for about 25 years though, but it's a beautiful country 👍