I made the pipes for this bike. The bike came to me as a collection of parts and I rebuilt it including making quite a number of parts for it ,the pipes being one of the things I made.
Thanks, but, couldn't you install the pipes 2 Not go trough the carburetors intake, to not warm the intake air which decreases the power and endurability of the engine ? Plus, the bike would be more symetrical ....
One of these will show a clean pair of heels to most modern litre-bikes. They were light, with a LOT of horsepower, provided you know how to use it, and ride the bike. No sissy electronics to keep you out of trouble. This is a RIDER'S machine...
+KathrynLiz1 People like you are a joke! Sissy electronics, so what? Motorcycle riding is about fun and being free on the open road. Plus all those so called sissy electronics can be turned off! I'm guessing you ride an old pile of junk and are super jelly about modern sports bikes! fuck off!
Bollocks, they were the business in their day but their day was '77 - '80 they wouldn't get anywhere near a modern 600 racer let alone a 1000. Doesn't mean they're not fabulous bikes though, just get a grip on reality.
@Greg RSVR The bike had 140hp similar to 600cc and that bike was from 1977, with current technology 750cc two stroke could go up to 250hp. If we go to Suter MMX 500 specs.
I have always wondered how the needle/vacuum diaphragm system in carbs worked, since I am a relative noob when it comes to carburetors, especially on motorcycles. This video was perfect for improving my knowledge. Thanks!
RARE! What an amazing machine. I used to fantasize about owning one when I was a kid. Good job I never got hold of one coz I'm sure I wouldn't still be here........not in one piece anyhow!
the reason you rev a 2stroke on warm up is so you dont oil up the spark plugs. reving a new rebuild in nutral is not a problem... infact you cause more problems not reving it...if the plugs arent hot enough at idle/warm up you risk a cylinder not firing and gumming up the rings which leads to rings not seating properly and early rebuilds. Also consider the oil/fuel mix is for high rpms and at idle there is too much oil in the fuel.
I have two TZ's . Raced for 8 yrs on a club level. Still have all my bikes. An H2, an RZ500 with forks, swing , 90 over , Swarbrick pipes also set up for 32's. You're right about the plugs , you need to keep them firing clean as the engine builds to 80c. TZ's work best with fine wire plugs. Depending on how lean you want to go with the mix and jets , you can help by going colder with the plugs. Besides keeping the plugs clean on start up , you also seat the ring faster on a rebuild.
always wanted a TZ it was one of the bikes that were at the top of its game of its day. My brother had the kawasaki triple 750 with race dogs and the shittiest brakes to ever grace a bike, known in Australia as the widow maker, and was outlawed and banned from sale here. Good times 8)
@@Team-fabulous I kind of get it with a highly tuned two stroke racing engine, yes at cold temperatures I can see a potential for plug fouling but to mention gummed up rings is just nonsense. Then again fools can have their say on the Internet as much as anybody else I guess
I've just come. Lovely 2T radge machine! Astralites. Nice. Beautiful work. I despair of some of the jealousy laden, contradictory comments people leave on here. Go to any paddock area in the 70's-80's, and that is exactly the kind of throttle blipping you'd hear from every freshly rebuilt machine in the area. Some people. I wish I had the skill.
@musiclovr2 It was discovered (on the 500's) that the flat side carbs helped on slower, winding tracks, while the round slides were better on sustained high speed tracks.
He knows what he's doing. If you watch the 250cc motoGP class and watch them warm up their engines, this is exactly what they do! Not to mention that they only put about 500 miles on an engine before they re-build it. 2 strokes are a different beast that what you're used to!
love your bike . own a tzr 250 with just 1000 km on it , its a beast to drive ,hit bout 4000 rpm at it lifts the frontend and everything gets blurred to i reach 13000.... and the next gear kicks in, wouldent mind trying this wonder. LOVLY job onit awsome pipes and really big holes in those carbs, almost black holes....
That's why there is a Break In period. I see this a lot of shows like American Chopper where the old man (Paul Sr.) , revs a new engine. I read that before Porsche test drives there cars, they gently rev the engines and allow the oil temps to come up properly. Of course, this is on their air/oil cooled engines. The same principle applies to all engines, or should be. Nice machine. Best of luck you to you.
yes i see what you meen ,i however dont know if this is the actual first start or the start up to preheat for riding as we used to do,but never had a piston or cylinder sleeve scoring or set after a rebuild on twostrokes only if i had a bad batch of pistons.
always remember helping Alex George in the pits at donington in the late 1970s when i was a kid, he let me rev the bike like this while he did some setting up
@YZR750 The pipes are very nice! I've pondered building my own pipes with stainless/tig welding 'em. I found a great template for the dimensions.... tempting but very time consuming. yours came out great!
That is one beautiful machine. Nice work on the pipes. How did you know how and where to run them? From what I can hear there was some spot on machine work done on her also. Bravo. Now can I try to turn a few laps on it?
Yes, there is a reason. Those carbs have no idle stop screws. You can see that if you look closely. They are racing carbs and are not meant for idling. If you close the throttle, the engine stops running. It may be for safety reasons, so if the rider leaves the bike, the engine shuts off. As for the video, gently revving the engine like that is a normal warmup method that minimizes plug fouling. He's also confirming all cylinders are running.
They are! When they come on the pipe at about 8,000 they become a handful and if you're running 34's with power jets that dump another 60-70 jets worth at around 10,000 , you will scare the crap out of yourself if you're not ready for it!!
@shakennstirred The wheels are astralite not Maxton. They were made at the time these bikes were raced. Hence they are period wheels and correct fitment for the bike. Yes the 750,s came with wire wheels but the wheels were particular to that bike. The total number of tz 750,s ever made was just over 500 bikes. Many of which got effectively destroyed. If you think you can still get some origional 750 wheels then I am afraid you will be sadly mistaken.
@musiclovr2 No flat slides because the bike is a tz 750 and tz 750,s were not built with flat slide carbs. They were built with the same carbs as fitted to this bike. I wanted to build a tz 750 not some sort of mongrel machine. Unfortunately some parts are unavailable and have to be changed but no problem getting the correct carbs.
Where'd you get those awesome Astralite wheels? COOL! This bike is so futuristic in it's construction, it may be a two stroke, but it's outer appearance is that of a modern bike. Single shock, liquid cooled, I dare say it was ahead of the four strokes of the period, it had a lot of high tech in it, but is thought of as an "old school" technology. What a lark! It's awesome. Especially for a Yamaha of the period. A true bike lovers' bike!
The TZ750 has two 180 degree twins joined, right? Not one 90 degree crankshaft, ignition? That would sound even better, but the TZ has one of my favourite sounds anyway:)
@shakennstirred Check out what I origionally said in my post: No flat slides because the bike is a tz 750 and tz 750,s were not built with flat slide carbs. They were built with the same carbs as fitted to this bike. I wanted to build a tz 750 not some sort of mongrel machine. Unfortunately some parts are unavailable and have to be changed but no problem getting the correct carbs. YZR750 1 year ago
well its a 2 stroke ,not a 4stroke so its got plenty of lubeat where it needs it,and the sound makes you think its ery high when infact its not even in driving range rpm so dont be alarmed
I love my harley , BUT TWO STROKE YAMAHAS RULE. I MISS MY RD ( had a 400 with a tz250 crankshaft) that bike had no manners. THE TZ 750 BOUGHT US OUT OF THE STONE AGES.
@satelliter440 Try listening to the engine instead of watching the rev counter. Like many old rev counters it as lost its damping and hence reads very high when blipping the throttle. The bike is probably revving to about 4000 rpm on peaks not the 10000 rpm the rev counter says. Then again I know nowt about tz yams. Only built and raced them for over 30 years. Try checking my other videos , You will see my own bikes. Blue tz 350 and Red / white tz 750
pure music,anyone got video of stan stephens lc750/4 ,he made 1 then sold it ,completed for under £2000 ! i was gutted ,total bargain,tho,not as fierce as a tz i'm sure,2 strokes .love 'em
@7c3c72602f7054696b WOW DUDE !!! How does one make a comment like this after seeing AND HEARING a perfectly dialed in machine like this?? He put this awesome machine together from a box of parts, and what was missing he built by hand. Do you understand the work and commitment that goes into a project like this? Unbelievable statement!!!
I made the pipes for this bike. The bike came to me as a collection of parts and I rebuilt it including making quite a number of parts for it ,the pipes being one of the things I made.
Thanks, but, couldn't you install the pipes 2 Not go trough the carburetors intake, to not warm the intake air which decreases the power and endurability of the engine ? Plus, the bike would be more symetrical ....
One of these will show a clean pair of heels to most modern litre-bikes. They were light, with a LOT of horsepower, provided you know how to use it, and ride the bike. No sissy electronics to keep you out of trouble. This is a RIDER'S machine...
+KathrynLiz1 People like you are a joke! Sissy electronics, so what? Motorcycle riding is about fun and being free on the open road. Plus all those so called sissy electronics can be turned off! I'm guessing you ride an old pile of junk and are super jelly about modern sports bikes! fuck off!
+Spikes Stuff lol that hate. he (or she) is just saying that this will decimate anything on the track.
Bollocks, they were the business in their day but their day was '77 - '80 they wouldn't get anywhere near a modern 600 racer let alone a 1000.
Doesn't mean they're not fabulous bikes though, just get a grip on reality.
@Greg RSVR
The bike had 140hp similar to 600cc and that bike was from 1977, with current technology 750cc two stroke could go up to 250hp. If we go to Suter MMX 500 specs.
140 bhp...in dreams maybe, 12 0bhp is a more realistic figure.
Greg
I have always wondered how the needle/vacuum diaphragm system in carbs worked, since I am a relative noob when it comes to carburetors, especially on motorcycles. This video was perfect for improving my knowledge. Thanks!
them pipes are a thing of beauty nice work on them true crafts man.... sounds amazing
RARE! What an amazing machine. I used to fantasize about owning one when I was a kid. Good job I never got hold of one coz I'm sure I wouldn't still be here........not in one piece anyhow!
I love the sound of this engine. are there still parts available for these Yamahas?
I hope to see more vids of these Yamahas
god goes on 4 strokes,but DEMON goes on 2 strokes.....this bike is still a beast!
I love 2 strokes! Nothing comes close!
the reason you rev a 2stroke on warm up is so you dont oil up the spark plugs.
reving a new rebuild in nutral is not a problem... infact you cause more problems not reving it...if the plugs arent hot enough at idle/warm up you risk a cylinder not firing and gumming up the rings which leads to rings not seating properly and early rebuilds. Also consider the oil/fuel mix is for high rpms and at idle there is too much oil in the fuel.
I have two TZ's . Raced for 8 yrs on a club level. Still have all my bikes. An H2, an RZ500 with forks, swing , 90 over , Swarbrick pipes also set up for 32's. You're right about the plugs , you need to keep them firing clean as the engine builds to 80c. TZ's work best with fine wire plugs. Depending on how lean you want to go with the mix and jets , you can help by going colder with the plugs. Besides keeping the plugs clean on start up , you also seat the ring faster on a rebuild.
always wanted a TZ it was one of the bikes that were at the top of its game of its day. My brother had the kawasaki triple 750 with race dogs and the shittiest brakes to ever grace a bike, known in Australia as the widow maker, and was outlawed and banned from sale here. Good times 8)
Absolute rubbish
@@bonkeydollocks1879 agreed.... Once you start any bike you have to rev it. What the hell is he talking about!!??
@@Team-fabulous I kind of get it with a highly tuned two stroke racing engine, yes at cold temperatures I can see a potential for plug fouling but to mention gummed up rings is just nonsense. Then again fools can have their say on the Internet as much as anybody else I guess
I've just come. Lovely 2T radge machine! Astralites. Nice. Beautiful work. I despair of some of the jealousy laden, contradictory comments people leave on here. Go to any paddock area in the 70's-80's, and that is exactly the kind of throttle blipping you'd hear from every freshly rebuilt machine in the area. Some people. I wish I had the skill.
@musiclovr2 It was discovered (on the 500's) that the flat side carbs helped on slower, winding tracks, while the round slides were better on sustained high speed tracks.
He knows what he's doing. If you watch the 250cc motoGP class and watch them warm up their engines, this is exactly what they do! Not to mention that they only put about 500 miles on an engine before they re-build it. 2 strokes are a different beast that what you're used to!
love your bike . own a tzr 250 with just 1000 km on it , its a beast to drive ,hit bout 4000 rpm at it lifts the frontend and everything gets blurred to i reach 13000.... and the next gear kicks in, wouldent mind trying this wonder. LOVLY job onit awsome pipes and really big holes in those carbs, almost black holes....
That's why there is a Break In period. I see this a lot of shows like American Chopper where the old man (Paul Sr.) , revs a new engine. I read that before Porsche test drives there cars, they gently rev the engines and allow the oil temps to come up properly. Of course, this is on their air/oil cooled engines.
The same principle applies to all engines, or should be. Nice machine.
Best of luck you to you.
I agree with you. Constant speed will avoid fouling the spark plugs.
that sounds like a million bucks, beautiful.
I love it, you are a lucky man.
Those rims are F'in sweet also!!
@YZR750
props man, I'm sure it's going to become a beast !
yes i see what you meen ,i however dont know if this is the actual first start or the start up to preheat for riding as we used to do,but never had a piston or cylinder sleeve scoring or set after a rebuild on twostrokes only if i had a bad batch of pistons.
Consortium Racing in Melbourne Australia is casting new cases etc, some parts are available. Awesome bike.
Man... You guys'll never know how much I miss my H2's !!
-ralph
always remember helping Alex George in the pits at donington in the late 1970s when i was a kid, he let me rev the bike like this while he did some setting up
Awesome!!! What a beast! Beautiful Astralite wheels
Sounds nice!! very hard to find high displacement 2 strokes these days.
Its just a shame smelly vision hasn't been invented cos the 2-stroke waft from this would be a damn sight better than anything you'd get form a spliff
@YZR750 The pipes are very nice! I've pondered building my own pipes with stainless/tig welding 'em. I found a great template for the dimensions.... tempting but very time consuming. yours came out great!
The tz and the RG 500 are my favourite 2 strokes 😁.
That sounds beautiful 😍👍🍺🏴
That is one beautiful machine. Nice work on the pipes. How did you know how and where to run them? From what I can hear there was some spot on machine work done on her also. Bravo. Now can I try to turn a few laps on it?
Yes, there is a reason. Those carbs have no idle stop screws. You can see that if you look closely. They are racing carbs and are not meant for idling. If you close the throttle, the engine stops running. It may be for safety reasons, so if the rider leaves the bike, the engine shuts off.
As for the video, gently revving the engine like that is a normal warmup method that minimizes plug fouling. He's also confirming all cylinders are running.
Must be an awe inspiring ride
They are! When they come on the pipe at about 8,000 they become a handful and if you're running 34's with power jets that dump another 60-70 jets worth at around 10,000 , you will scare the crap out of yourself if you're not ready for it!!
@shakennstirred
The wheels are astralite not Maxton. They were made at the time these bikes were raced. Hence they are period wheels and correct fitment for the bike. Yes the 750,s came with wire wheels but the wheels were particular to that bike. The total number of tz 750,s ever made was just over 500 bikes. Many of which got effectively destroyed. If you think you can still get some origional 750 wheels then I am afraid you will be sadly mistaken.
@ satelliter440: The engine is under no load when in neutral, it's completely safe. Riding it with high revs would be a problem.
@musiclovr2
No flat slides because the bike is a tz 750 and tz 750,s were not built with flat slide carbs. They were built with the same carbs as fitted to this bike. I wanted to build a tz 750 not some sort of mongrel machine. Unfortunately some parts are unavailable and have to be changed but no problem getting the correct carbs.
Where'd you get those awesome Astralite wheels? COOL! This bike is so futuristic in it's construction, it may be a two stroke, but it's outer appearance is that of a modern bike. Single shock, liquid cooled, I dare say it was ahead of the four strokes of the period, it had a lot of high tech in it, but is thought of as an "old school" technology. What a lark! It's awesome. Especially for a Yamaha of the period. A true bike lovers' bike!
The titans of motorcycle
Beautifully sounding TZ, love to here this on the track?
someone needs to put one of these in a banshee frame!
Congrats...Nice work matee !! Nice suond
awesome, any chance of an on board vid?
The TZ750 has two 180 degree twins joined, right? Not one 90 degree crankshaft, ignition? That would sound even better, but the TZ has one of my favourite sounds anyway:)
thats a sweet sound you got there
That sounds ANGRY. Like it wants to get out of its cage and go kick ass. Just love those old Yamahas. What a beast!
@shakennstirred Check out what I origionally said in my post:
No flat slides because the bike is a tz 750 and tz 750,s were not built with flat slide carbs. They were built with the same carbs as fitted to this bike. I wanted to build a tz 750 not some sort of mongrel machine. Unfortunately some parts are unavailable and have to be changed but no problem getting the correct carbs.
YZR750 1 year ago
a total masterpice!pipes
well its a 2 stroke ,not a 4stroke so its got plenty of lubeat where it needs it,and the sound makes you think its ery high when infact its not even in driving range rpm so dont be alarmed
Best sound ever!
Wow all those expansion chamber's coming out of it look like tentacles!
Glorious.
Tell me, please, what the differences are between the TZ750 and YZR750.
Very Very SICK.....LOVE IT !!!
Why no air filters?
I love my harley , BUT TWO STROKE YAMAHAS RULE. I MISS MY RD ( had a 400 with a tz250 crankshaft) that bike had no manners. THE TZ 750 BOUGHT US OUT OF THE STONE AGES.
@satelliter440 Try listening to the engine instead of watching the rev counter. Like many old rev counters it as lost its damping and hence reads very high when blipping the throttle. The bike is probably revving to about 4000 rpm on peaks not the 10000 rpm the rev counter says. Then again I know nowt about tz yams. Only built and raced them for over 30 years. Try checking my other videos , You will see my own bikes. Blue tz 350 and Red / white tz 750
My dad had this bike back when it first came out
my Denco-H2 scared me quite enough back then ; I would be too afraid to ride that bike.
The brutality must be hard to imagine
sweet sounds
Terror is an understatement
Beautiful thing!
beautiful bike
woww 750cc 2 strokes!!!!! the coffins come free!!!!!!!!!
Umiesz coś więcej ,poza dodaniem gazu?
rejeting this thing must be a nightmare, huh?
Does it have a Hoekle crank ?
2 stroke 3/4 L.... MONSTER!! I Love!!
isnt there a problem coz ur carburator is too close to the exhaust?
Highspeed bearing sound ? wow
That's the clutch that makes that sound. I have two TZ's.
bob byo wow.. I get it.. thanks for explain :)
No problem! Have a great day1
why no flatsiders? :/
r.i.p 2t
beautiful machine
Kenny Roberts alarm clock..............................Lets Ride!
dude they're roundslide carbs - no vacuum like a CV on a fourstroke.
A stakato crackle..............
Lovely..
"They don't pay me enough to ride that thing."
-Kenny Roberts (about the flattrack version)
@YZR750 flat side carbs barely do anything for performance anyways.
is that a 4cyl???
congratulaciones
How much does a 750 engine cost? lol
Whats that Noise After going from trottle?
Marco Wagner the performance bearing sounds
HiragaSaito sama. Isn't it the "induction whistle"?
My girlfriend say Two Stroke sucks,
now she is Single
Some say its childish to rev it, but I never lost the child in me.
High performance engines never keep at constant speed, it will damage the engine!
Lovely, thanks for sharing
@nidgybaby there wouldnt have been any market for virtually unridable gas pigs. dont get me wrong, i'd have one, but we are a small slice of the pie.
mine, she was too afraid of my 2 stroke. Now I'm single.
Hey! Can you explain to me why modern 4 stroke 450s can't rev much past 13k? Heard it has something to do with metal falling apart? Is this true?
Sounds sweet as a nut, I can almost smell the Castrol-R..!
pure music,anyone got video of stan stephens lc750/4 ,he made 1 then sold it ,completed for under £2000 ! i was gutted ,total bargain,tho,not as fierce as a tz i'm sure,2 strokes .love 'em
Only street bike I aim to own ! 30 to 40k I bet.
@7c3c72602f7054696b
WOW DUDE !!! How does one make a comment like this after seeing AND HEARING a perfectly dialed in machine like this?? He put this awesome machine together from a box of parts, and what was missing he built by hand. Do you understand the work and commitment that goes into a project like this? Unbelievable statement!!!
I Love 2T
I'm still waiting ...........................
Holy shit... thats sex to my ears.... my favorite bike of all times!!! i love it :)
Tobad its so rare!
sweet
sono venutoooo!!
750 2 stroke very nice mmy brother uk navigate to 750
Amo i 4 tempi pero` una 750 two stroke......
2 strokee the best YAMAHA TZ750 and HONDA NSR500
PURE RACING - TEAM YAMAHA
I there some reason why this bike can't idle?
you can actually feel that burning oil coming straight from exhaust pipes, breaking through the screen and reaching your nose!
No air filters🤦♂️
El sueño de mi vida