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STICKY:
Rebuilding a TTR250 Teikei Y30P Carburettor
(Preview)
http://ttr250.com/Carb/TTR250_carburettor_strip_and_rebuild_guide.htm
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TT-R250M
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45
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52289
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STICKY:
Carburettor - replacing a damaged carb drain screw
(Preview)
The forum seems to replicate owners problems on my own bikes somehow This time the problem was a rounded out drain screw on a carb. I drilled out the damaged screw with a 3mm drill and then extracted it with a 3.5mm extractor. The new drain screw is part number 14T-14104-00 - available here Job done! B...
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TTRfan
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16
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40595
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STICKY:
Carburettor - pictorial guide to stripping and checking a carb
(Preview)
http://www.ttr250.com/Removing_carb/TTR_carb_removal.htm
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TTRfan
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22
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28831
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STICKY:
Alternative carbs for the TTR250 - 32mm carb
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1 2
)
(Preview)
had enough of the TTR carb leaking fuel... Time to put the 32mm flat slide on... the carb is 12mm shorter the the TTR carb so will make a 12mm thick block to go between the head & manifold that will move the carb/manifold back 12mm to get the inlet into the air boot... put a 42 pilot & 50 main jet in it...
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petenz
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64
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83793
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STICKY:
Carburettor - repairing a broken carburetor - float pin post and choke
(Preview)
EDIT BY BRIAN - SEE http://www.ttr250.com/Floatpost/TTR_float_post_repair.htm FOR AN UPDATED REPAIR GUIDE!Since it seems to be a common problem to break the float pin support mount on the TTR carburetors i thought i would add this simple fix to the problem.Thanks for reading, Cheers. The ho...
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barra8
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13
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38853
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STICKY:
Carburettor - main nozzle differences
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1 2
)
(Preview)
Hi to all . I have a 93 Japan grey import in Greece (yes we are still alive and kickin) and I looking to restore my carb. I have found this page for anyone who is intersted. My problem is that they list models from 1999 to 2006. For all the parts they show total compatibility to all years models, EXCEPT the mai...
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pantheman
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56
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79493
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STICKY:
Freeing off a jammed choke
(Preview)
After breaking a couple of shafts (they are only made of brass) in the past trying to free a seized choke I decided to try a different approach today and it worked so I thought I would share it. I firstly took the top off the carb to see if there was any way of freeing it from inside but I don't believe there is...
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TTRfan
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6
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7211
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STICKY:
Removing and replacing the TTR250 carb video tutorials
(Preview)
I have tried my hand (Trish's actually!) at doing a couple of video tutorials to help owners removing and replacing their carb for the first time. I didn't really prepare properly so there is quite a bit of mumbling and senior "stuck for the words" moments so sorry about that! Here they are. In the first...
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TTRfan
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8
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10260
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STICKY:
Carb - jetting information
(Preview)
i am putting on new exhaust and with out taking out the carb to check if the pilot jet i need is a 52.5 is it long or short, and the 140 main i have seen in other post is small round. can someone help. its for a 2006 us 250. thanks
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nwrider
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44
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116679
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STICKY:
Carburettor removal and replacement
(Preview)
http://www.ttr250.com/Removing_carb/TTR_carb_removal.htm Also, there are a couple of tutorial videos showing removal and replacement of the carb here https://youtu.be/0k1EG1LuPBc and here https://youtu.be/Nlhl9aD9wHI
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TTRfan
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0
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4515
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The Big Bore Carb Jetting Thread - 325 and 350cc
(Preview)
As there are a few 325s about, and the 350 kit is selling, I thought I should begin a thread about carb jetting for the big bore engines. Those of us who have been running the 325 for a while may have noticed they run a bit rich if the jetting is left standard. Sort of the opposite of what you might expect (coun...
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mossproof
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36
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3822
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Starting issue
(Preview)
I am having problems starting the TTR 250. The bike has been ridden recently, fuel is about 2 months old.The bike starts but dies immediately, regardless of choke or throttle.I have cleaned the carb out a few times (pilot and main jets) and replaced the inlet stub, fuel flow is good.I still think this i...
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Robin
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7
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394
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Error in the TTR FAQ - removing the carb
(Preview)
It says "Removing the carb can be quite a big job if the air box is removed first.". Actually that's the easy way to do it. I think this should say "Removing the carb can be quite a tricky job if the air box has not been removed first and you don't know the technique, but it can be done without damage to the in...
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mmwain
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2
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2755
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Missing check valve
(Preview)
I just purchased a 2002 TTR250 I took apart my carb for cleaning and I noticed when putting it back together that the check valve that sits in the bowl is missing. Before, the bike was running poorly. Im not sure if the valve fell out when I was cleaning it, or if I bought it that way. Could the poor running b...
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Serj
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1
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932
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Bike not starting could it be the check seat valve
(Preview)
I have rebuilt my carby with an all balls kit, a new original yamaha diaphragm and o rings for the fuel pump and a check seat valve I don't know if the check seat valve is new so is there meant to be a noticeable hole in the check valve because I can't see one, I can prime the throttle and use the choke and it wil...
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Gabriel2fifD
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1
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1342
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Cleaning a carburetor in an ultrasonic cleaner what household solution to use
(Preview)
I'm going to be using my first ultrasonic cleaner soon but I need some help on common cleaning solutions to use found around the house, its a 30L so it takes a lot of solution especially if I buy it pre mixed instead of a concentrated solution, I've been reading up what to use and the MSDS (manufacturer saf...
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Gabriel2fifD
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3
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1486
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Does the 1999-2012 All Balls carby rebuild kit fit a 1995 carby
(Preview)
I am looking at buying a carby rebuild kit for my 1995 TTR250 carby but I cant find one, I have found kits for 1999 to 2012 carbies from All Balls they seem the same as far as the carby bowel gasket goes and the same for the top gasket where the slide is housed but for the rest of the kit I dont know if its compatib...
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Gabriel2fifD
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1
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1195
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ENGINE SUDDENLY RUNNING TOO FAST - CARB AIR LEAK?
(Preview)
Competing in vintage enduro yesterday and engine revs suddenly rose to run at about half throttle. Cables all ok and throttle returning to throttle drop screw. Completed lap by turning out throttle stop screw, but then the bike kept stalling at critical moments. Had to DNF. Carb recent overhaul, ne...
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Paul Rennie
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2
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1326
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Carb repair and maintenance
(Preview)
Steve keeps most (if not all!) TTR carb parts in stock in the Totally TTRs online shop, including some second-hand jets, etc. - see here He also carries a wide range of used parts - see here If you are after parts that are not in the shop, contact Steve for availability and price. He is able to get nearly ev...
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TTRfan
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0
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1488
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Mystery main jet!
(Preview)
I have just come across one of these jets in my carb spares box! Anyone recognise it and know what it is please?It is stamped 147. Is it safe to assume it is a direct replacement for a standard 147 main jet? Brian
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TTRfan
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0
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1399
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Bike cutting out when backing off from full throttle
(Preview)
Bike runs well, except when at full throttle & I back off, the bike cuts out for a second & then surges on again… cheers!
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Rtw1day
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0
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1448
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Need some guidance
(Preview)
I have a 2008 ttr110.. bike has 102 hrs on it..motor is 100% stock. I had some carb issues with the stock carb so I purchased a mikuni vm26. Bike kicks off on first kick without having to use choke. I worked on the Jetting for 8 hours, New Plug ,New Gas (Non-Ethanol) tried a different Carb, Different Needl...
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Templet2
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2
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1936
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Choke not working - blockage in float bowl feed
(Preview)
Long story short. Choke wouldn't work on a carb I am setting up. Everything else was fine once the bike started and warmed up but it was very reluctant to start. Took float bowl off and checked the choke and its galleries on the main body of the carb. All looked and worked as they should. It turned out that t...
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TTRfan
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0
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1402
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Coughing and spluttering
(Preview)
Good morning all, Having purchased a TTR250 beginning of this month today was the first ride, now before i go any further all i have done is replaced the stock exhaust with a Totally TTR's Phoenix full exhaust system that from reading to description does not require any re-jetting so is designed to be...
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MichaeltT
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4
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1720
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Surging at part throttle, air leak?
(Preview)
Hi all, got my 1994 OE out of winter slumber & it has a sort of surge or uneven running at low/part throttle. Fresh fuel, well warmed up, pulls cleanly(ish) through rev range, ticks over fine. I've had this problem before & nver got to the bottom of it. Bike has snorkel mod, shorty header & ex...
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Bran
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2
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1982
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Australian Model 147 main jet as stock???
(Preview)
Hi from Australia I just scored myself a GYTR exhaust & Am going to a rejet after installing & opening the airbox i pulled a carb apart planning on upping the jetting from 50 to 52.5 for the pilot, & from 137 to 140 but upon disassembl, I found the stock from new I believe, to have 50 pilot &a...
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Rtw1day
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6
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2800
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High or sticking idle??
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1 2
)
(Preview)
Hey all. New to the forum. I posted this over on Thumper Talk, and got no response, so I decided to make an account here. Its a 2005 US model. I got the bike last year. I did the basic stuff, took the baffle out of the pipe, rejetted, took the snorkel off of airbox, etc. That's when my problems started... ...
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OkieRider
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56
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10183
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Accelerator Pump Nozzle alignment
(Preview)
Hi All, first post and being this forum has been a great help in information i am hoping someone can help me out. I have scored a 2005 TTR that by the looks has not been started for over 10 years, and i have had some interesting challenges getting the bike up and running. Carb was totally full and blocked wit...
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Nic_B
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1
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1951
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Carb driving me mad!!
(Preview)
Hi, recently bought a 1998 TTR 250, been stood around for a few years. Its developed a carb issue very quickly which is driving me mad, so hoping someone can help! A little diagnostic history...... After getting her home she started up first time and runs really sweet. So after checking her over I took h...
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Lazza
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4
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1988
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Carb Problems
(Preview)
Hi I am talking about an 04 blue tank model bike that I have had for 12yrs so it is not new to me. I am reasonably ok with practical stuff rebuilt engines etc . So my problem started when I came to take thebike out after a longish 1yr year of no activity. Starts up fine ticks over fine will rev up if throttle is op...
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rogpreston
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11
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2294
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