I have a 2003 year production model. Same carb setup. If they are setup correctly the motor runs very well and fuel mileage is good. The problems comes in when people try to "tune" them to do what they're not designed to do.
If you drill out the secondary by 2 sizes it opens up the power like crazy! As well as making the secondary opens a little quicker with the adjustment.
I know this video is a few years old but just wanted to say thank you for the good quality video. I've been working on an 83 tt600 and the previous owner completely botched the carb. I finally figured out that previous owner had the slide in upside down (I'm sure they gave up on the bike and sold it to me for cheap ($500) when they couldn't get the carb to go back together properly). Oddly enough the slide fit, just not correctly enough to make it all work. I also found 3 missing hoses, a missing spring, missing air fuel screw/spring/washer/o-ring, missing air intake tubes (which I had to order from England of all places), plus everything was loose. Lol, the main spring gets delivered tomorrow so I'll see if it actually runs now. I used your video as a guide to compare mine to and again just wanted to thank you for taking the time to put up this video since it helped me much more than you would understand.
They got rid of it. Wait my xt600e 2003. Last production year still has this system. And it's actually REALLY genius. It's basically a fake 3 to 4 valve system that increases the low end RPM. And makes sure the engine can't fall on its face with getting to much air
It’s ok but I think it’s over complicated. When tuned it does work but a well tuned accelerator pump carb works well too and is only one thing to deal with. Now those are complicated too and have issues for sure but I’d rather deal with one than two personally
@@highlandcycles well I agree , they are hard to tune for more power. But I honestly think it's the best thing before fuel injection. Especially on a 1 cil engine with 2 Intake ports
My 2003 TT600R doesn't fully revert to idle when I release throttle, can get it there by blipping the throttle but it's a pain, any ideas, previous owner had it cleaner with no improvement
Hey man, like you're vid, I've bought a 600 2001 I guess, runs really good, way better than my GS 650 😅 but the carbs are really wierd I hope that they wil live a long time haha
my 2003 xt600e won't start. got progressively harder to start it but now won't fire up. always ran well. no local mechanics. a bit scared to get the carb out. any ideas gentlemen?
Could you kindly have a look at a video have just uploaded? I have a very rubbish spark at the moment on my XT. Any idea what might be the reason? Mechanic recently changed the starter relay and I wonder if that is at fault.
Is there a way to convert it just to one carb to operate both sides? Anyone. Just saying because I just purchased a xt 550, but it didn’t come with a carb was wonder there any other way to get carb on there?
Wished you would of showed the carb bowl i have a 550 that leaks fuel from the overflow when the bike is off. while it's running it's ok just when it's off it leaks. I put a new needle and seat in it an still leaks. i think something is missing in the carb bowl for the overflow on mine the hole is halfway up the bowl with no tube. I've done other bike that have a overflow tubes in the bowl. Nice video anyways
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I have a 2003 year production model. Same carb setup. If they are setup correctly the motor runs very well and fuel mileage is good. The problems comes in when people try to "tune" them to do what they're not designed to do.
Finally a chanel about the two things i love. Scotland and Motorbikes. :D
Cheers.
Cheers!
, hello, my XT600 emits a lot of smoke and I tried replacing the ring piston and the calf seal but it still smokes, what can be the problem?
Not sure
Valves leak?
If you drill out the secondary by 2 sizes it opens up the power like crazy! As well as making the secondary opens a little quicker with the adjustment.
Awesome
What is the secondary? I would like to do it. Where do you drill it out?
I know this video is a few years old but just wanted to say thank you for the good quality video.
I've been working on an 83 tt600 and the previous owner completely botched the carb. I finally figured out that previous owner had the slide in upside down (I'm sure they gave up on the bike and sold it to me for cheap ($500) when they couldn't get the carb to go back together properly). Oddly enough the slide fit, just not correctly enough to make it all work. I also found 3 missing hoses, a missing spring, missing air fuel screw/spring/washer/o-ring, missing air intake tubes (which I had to order from England of all places), plus everything was loose. Lol, the main spring gets delivered tomorrow so I'll see if it actually runs now.
I used your video as a guide to compare mine to and again just wanted to thank you for taking the time to put up this video since it helped me much more than you would understand.
Awesome to hear
I have 1990 tt600 59x white frame...
Is stil a beast
That motor is capable of very impressive power with minimal work to carb and air box.
That’s awesome
The dual carb setup was used in an attempt to reduce lag and increase throttle response. These days, I’d put a pumper on it.
Yeah, it was a failed attempt for sure. Yamaha and Honda tried it.
Im looking for these typs of bikes as a daily driver,XR600,TT,XL.if you have any bikes like this please hit me up in the comments.great presentation
Did you ever make the playlist for this bike? I couldn’t find any more videos
No. I didn’t
They got rid of it.
Wait my xt600e 2003. Last production year still has this system. And it's actually REALLY genius. It's basically a fake 3 to 4 valve system that increases the low end RPM. And makes sure the engine can't fall on its face with getting to much air
It’s ok but I think it’s over complicated. When tuned it does work but a well tuned accelerator pump carb works well too and is only one thing to deal with. Now those are complicated too and have issues for sure but I’d rather deal with one than two personally
@@highlandcycles well I agree , they are hard to tune for more power. But I honestly think it's the best thing before fuel injection. Especially on a 1 cil engine with 2 Intake ports
Awesome bike as are all Yamahas.
Agree!
I have my dads old 1983 TT600 I’m going to restore. It’s been sitting for about 20years. So it will need a lot of work
Where did you get the carburetor from ????
Or how do you clean it ??
How does the choke work? Cant see it "choking" really?
The blade chokes (closes) the passage
My 2003 TT600R doesn't fully revert to idle when I release throttle, can get it there by blipping the throttle but it's a pain, any ideas, previous owner had it cleaner with no improvement
Not sure. I would start with removing and cleaning. I know it was “done” but seems like something is wrong. Also check jetting
Sounds like false air maybe at the intake manifold?
I have a belgrada ttr600 but the carbs are gone are the carbs from tt600 work on ttr600?
I think so
Hi what do you use in your ultrasonic cleaner?
Fabuloso and water
Hey man, like you're vid,
I've bought a 600 2001 I guess, runs really good, way better than my GS 650 😅 but the carbs are really wierd I hope that they wil live a long time haha
my 2003 xt600e won't start. got progressively harder to start it but now won't fire up. always ran well. no local mechanics. a bit scared to get the carb out. any ideas gentlemen?
That sounds more like it needs a valve adjustment
@@highlandcycles thank you...pleased I never got that carb out
Could you kindly have a look at a video have just uploaded? I have a very rubbish spark at the moment on my XT. Any idea what might be the reason? Mechanic recently changed the starter relay and I wonder if that is at fault.
@@stillben probably not the relay. Could be the stator
My tt600 won't idle is the fuel mixture screw the one underneath the carby
yes
got 1985 xt 600 cant figure the spark system wiring out everything there just cant get spark from rectifier
friend where can I buy the device to clean the carburetors, and what is it called
It’s an ultrasonic cleaner and you can get them on Amazon or places like harbor freight
@@highlandcyclesthanks for your help bro
I have a 1980 tt600 every time I decelerate to idle it dies , I've set it to the manual, but it makes no difference. Any ideas anyone.
Try just turning the idle up a bit
Wanna work on my 83 tt600? It won’t start but it’s in great condition and gets great spark
Sure
i dont know where wires go from rectifier and cdi please help me confused
I do have some hop up info if you so desire.
Maybe. Right now this customer just wants it to run well.
I'd love to have some info for hop ups, I've been fixing one up and I need more power
Is there a way to convert it just to one carb to operate both sides? Anyone. Just saying because I just purchased a xt 550, but it didn’t come with a carb was wonder there any other way to get carb on there?
That is a great question. I don’t know of an easy way.
If you find out, please please let me know. Ive got an 83 XT550 I am tired of messing with the carb on and was looking for the same thing.
@@NicholasStillman will do
Do u know mine takes a while to return to idle?
Could be a fuel adjustment of the idle circuit
@@highlandcycles could it be couse the carby won t stay on the engine and do u have any ideas why it falls of
@@davemace9219 it could and I have no idea. That is weird
@@highlandcycles yea I have it sorted now to play around with fuel and air
Maybe a leak of air between the engine and the carb, on the pipe which link both. I don't know the english word for that pipe
Brush up on starting process!
They bite!
totally. We are getting it dialed. There will be another vid soon.
Anyone recommend a aftermarket alternative carb for the TT?
Not that I know of
@@highlandcycles raptor 660 carbs :)
@@tapstore hey I'm thinking on doing this, do you have to tune the carb or do anything the the raptor carb?
@@clutch5900 will depend on your exhaust/air filter flow etc, but yes always some tuning when converting
@@tapstore hey man thanks for responding and sorry to bother but was it a simple process to do? I want to get my old bike running again really bad
Wished you would of showed the carb bowl i have a 550 that leaks fuel from the overflow when the bike is off. while it's running it's ok just when it's off it leaks. I put a new needle and seat in it an still leaks. i think something is missing in the carb bowl for the overflow on mine the hole is halfway up the bowl with no tube. I've done other bike that have a overflow tubes in the bowl. Nice video anyways
Thanks. Sorry I didn’t get that shot.
I own one just like it and was wondering where do you add oil for oil changes?