Two Questions on this bike: In order to get compression when kicking i need to put in in gear and rock it for each kick, is something out of adjustment? Question 2, when electric starting this bike if it does not fire within the first couple of seconds the starter stops spinning and there is some clicking in the electrical components in the back under the seat, whats up?
Kudo's to Yamaha engineers designing the carb that you an easily remove the float boat and clean/replace jets if you want to. I don't remember it being like this on my xr70?
Not sure if you'll reply but could you tell me what the hose that's about 4-6 inches that runs into the gas on/off/ reserve switch. Mine is cut and won't run until it's replaced
What are those two wires running to the carb, I bought a new one to install and I don’t know what to do with those wires , I can’t get I it started I’m thinking it has to do with these wires
Hello, I just bought a brand new Battery for my TTR90. Do I have to charge the new Battery before installing it or just replace. My buddy told me I have to charge it 1st, but not sure how and how long if that is the case. Thanks !!!!!!
kawi 672 I read unless u upgrade your Exhaust system leave the stock Jets in. It won’t don’t anything as far as performance without a different exhaust and or different carburetor !
Hey quick ? My ttr 90 in nuetral when I rev it decel pops and when I put the choke fully on it chugs then dies . Is that normal or only use choke in winter ?
You need to clean the jets. The smallest piece of debris in one of those jets will make the Bike Bog out. Also, check the float bowl is springing back and set right. You shouldn’t have any problems with the choke after. Make sure your Air Box hoses are on tight and put a new filter in if it is dirty. I restored and rebuilt 2 of these TTR90’s. I still have a 2007 90.
Quick question. I am trying to work on my sons 2001 ttr 90 .I have taken apart the carb a million times cleaned the jets etc. The bike starts up fine as soon as I take it of choke it stalls. What am I missing?? I learned from watching all your dirtbike videos they were very good.
thanks for watching! Its been awhile since i had this bike.. Did you figure out the issue? My guess would be something tiny is clogging one of the jets?
I lost first gear on a ‘03 TTR90. I can shirt 2 to 3 but unable to get into first gear. What could I possibly getting into. The bike how low miles and I was hoping to repair want is only broken. Local Yamaha, suggested a full rebuild = $1,800…!
Dang.. that sucks man.. I know parts are crazy to get right now.. I feel like just a few years ago you could get a used replacement engine for $300-$500.. So that is insane for $1800..
matt dobson. I done all of this and my son's bike still hits a rev limit when we twist the throttle all the way. the bike is a 2004. it breaks up on top end. What will solve this issue?
nice video broh but i got a ? wat are the bigest jets i can get for dat ttr90 i got one today but my fuel valve petcock iz broke and i need to oder one oh and i did all my sht like your hit me need help
luis Gonzalez - It all depends on what you did to it.. I would suggest 95 for main and 15 for pilot.. any bigger and you risk running to rich or lean.. one of those.. lol.. but you can get from 12.5 -50 for pilot (12.5 is OEM) and from 80-180 for main (85 is OEM?)
+Ishmael Quintero - this bike is kind of hard because there is no clutch.. if you sit back far enough, and give it a little pull while hitting the throttle it can be done!
I have a ttr90 and it idles high a guy had a video about a ttr50 where he drilled a whole into the carb and popped this cap out so that he could get to the idle screw. Is there really a cap covering the idle screw or is there another reason it’s idling high. There throttle connectors don’t control the idle and there’s no idle screw showing so I figure it’s hiding behind the tiny cap
Steven Mclaughlin - It is a pain to get to if you have big hands. Its on the opposite side of the open side. Its a knurled screw that can be turned with you fingers. The size of the screw/bolt is smaller than a dime, maybe the size of a the tip of your pinky finger.
thanks, did the re-jet and it made the bike run so much better, especially when cold.
Your videos help me so much
Hey like your videos man you should do more engine tutorial videos
Appreciate the positive feedback!
I sold both my bikes, so I'll have to wait on the next one before making anymore videos..
Thanks again for watching
Two Questions on this bike: In order to get compression when kicking i need to put in in gear and rock it for each kick, is something out of adjustment? Question 2, when electric starting this bike if it does not fire within the first couple of seconds the starter stops spinning and there is some clicking in the electrical components in the back under the seat, whats up?
When you rebuild the carb; how far in do you screw the Idle Screw in at the onset?
Thanks man
Sorry about the nail. But how tall are you? I'm like6'3 myself and that ttr looked smaller. And thanks for the vid. Did it produce more power
I have a pw80, my son is getting taller…would you recommend a shock extender or larger shock? Thx
Kudo's to Yamaha engineers designing the carb that you an easily remove the float boat and clean/replace jets if you want to. I don't remember it being like this on my xr70?
OK thanks
i know it's been awhile and you sold it but where did you find those jets? I found some on ebay but it says for yz and cr? does it make a different
i bought from parts unlimited.. I'm not sure if the jets are specific, so i would rather be safe (so i wouldn't need to return)
i know this is 7 years later but were did you get your parts from for the ttr 90?
I used jets - r - us online for the jets/carb kit!
Not sure if you'll reply but could you tell me what the hose that's about 4-6 inches that runs into the gas on/off/ reserve switch. Mine is cut and won't run until it's replaced
TBE TeeJay that is how the gas gets from the tank to carbuy
What are those two wires running to the carb, I bought a new one to install and I don’t know what to do with those wires , I can’t get I it started I’m thinking it has to do with these wires
For what it’s the two wires goes in the carb?
Hello, I just bought a brand new Battery for my TTR90. Do I have to charge the new Battery before installing it or just replace. My buddy told me I have to charge it 1st, but not sure how and how long if that is the case. Thanks !!!!!!
I would throw it into the bike and ride it around for awhile.. let the bike charge it! But i've never replaced mine.. so I'm not exactly sure
sxecrew EXACTLY what I was going to do. I think the bike itself should charge the battery if it is not already charged. Thanks for the reply
I bought a 20 dollar battery from amazon for my trr90e and it started the bike right up from the box and is still going strong after 5 months.
hey i have a stock tar 90 does this jet kit change make the bike have more rev and make it go faster
kawi 672
I read unless u upgrade your Exhaust system leave the stock Jets in. It won’t don’t anything as far as performance without a different exhaust and or different carburetor !
Hey quick ? My ttr 90 in nuetral when I rev it decel pops and when I put the choke fully on it chugs then dies . Is that normal or only use choke in winter ?
You need to clean the jets. The smallest piece of debris in one of those jets will make the Bike Bog out. Also, check the float bowl is springing back and set right. You shouldn’t have any problems with the choke after. Make sure your Air Box hoses are on tight and put a new filter in if it is dirty.
I restored and rebuilt 2 of these TTR90’s. I still have a 2007 90.
What is the seal at bottom of carb mine is same as yours where goes around the bold but can't find that version antwhere
ttr90 carburetor gasket
I don't think you can buy just the gasket (maybe from a dealer) I bought a carb rebuild kit, and it had one in there...
Hey Ik this is 8 years later but the two connotations on the carb I’m trying to order one and i they don’t have that can you explain
Is the 90cc determined by the 90 carb?
I have a ttr90 n it has them electrical connections- what are they for? Cuz I got a new carb for the bike n it don't have them electrical connections!
Did you ever find out what those wires do
Quick question. I am trying to work on my sons 2001 ttr 90 .I have taken apart the carb a million times cleaned the jets etc. The bike starts up fine as soon as I take it of choke it stalls. What am I missing?? I learned from watching all your dirtbike videos they were very good.
thanks for watching! Its been awhile since i had this bike.. Did you figure out the issue? My guess would be something tiny is clogging one of the jets?
I lost first gear on a ‘03 TTR90. I can shirt 2 to 3 but unable to get into first gear. What could I possibly getting into. The bike how low miles and I was hoping to repair want is only broken. Local Yamaha, suggested a full rebuild = $1,800…!
Dang.. that sucks man.. I know parts are crazy to get right now.. I feel like just a few years ago you could get a used replacement engine for $300-$500.. So that is insane for $1800..
tanx broh yea i just did it like u u know so wher can i buy them at ..????????? so 95 main and da 15 for da pilot tanx fo helpn me out broh
luis Gonzalez - jetsrus.com is where i bought mine!
Does this fit 2006 ttr90
Dang why can't the klx140L carb be so easy to work with
Sorry....had to laugh about the nail in the tire.
Otherwise, this is a great video!
Hi Mate,
Where is the best place to order the 2 jets from please?
Cheers Brett
you can order off thumper talk, ebay, or i got mine of jetsrus.com
matt dobson. I done all of this and my son's bike still hits a rev limit when we twist the throttle all the way. the bike is a 2004. it breaks up on top end. What will solve this issue?
adjust carb maybe?
Where can I buy this?
Part number for jets?
nice video broh but i got a ? wat are the bigest jets i can get for dat ttr90 i got one today but my fuel valve petcock iz broke and i need to oder one oh and i did all my sht like your hit me need help
luis Gonzalez - It all depends on what you did to it.. I would suggest 95 for main and 15 for pilot.. any bigger and you risk running to rich or lean.. one of those.. lol.. but you can get from 12.5 -50 for pilot (12.5 is OEM) and from 80-180 for main (85 is OEM?)
And the stock ones were?
90 and 12.5
Is it the same for a pw80 or no?
sonofspaceghost o I would imagine it’s very similar, please let me know! I’ve never worked on the PW80
how do you do a willie
+Ishmael Quintero - this bike is kind of hard because there is no clutch.. if you sit back far enough, and give it a little pull while hitting the throttle it can be done!
I have a ttr90 and it idles high a guy had a video about a ttr50 where he drilled a whole into the carb and popped this cap out so that he could get to the idle screw. Is there really a cap covering the idle screw or is there another reason it’s idling high. There throttle connectors don’t control the idle and there’s no idle screw showing so I figure it’s hiding behind the tiny cap
No. It's a knob on the right hand side of the carb near the cylinder head
where can I get these jets
i bought these from parts unlimited. If you search for dirt bike jets you should be able to find a few other sites.. thanks for watching!
We're can I buy them from ?
Jets R us .com is where I got mine. But many place sell - just search for ttr90 jets for other sites and deals
How do you do the exhaust modification and intake modification?
Disregard post above, I just reviewed your videos of how to do it.
faashoooo
my bike iz leakn gass from dat line wher u let da gas leak so u can take out the folt u konw y iz it leak en
in English please
in English please
Where is the idle screw
Steven Mclaughlin - It is a pain to get to if you have big hands. Its on the opposite side of the open side. Its a knurled screw that can be turned with you fingers. The size of the screw/bolt is smaller than a dime, maybe the size of a the tip of your pinky finger.
sxecrew thanks for replying, my bike will not idle, now hopefully ut will