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All Balls Carby repair kit
(Preview)
Its probably already been mentioned somewhere on here, but after purchasing the All Balls Carby rebuild kit, have to say i was pretty disappointed with it. Hadn't had the carb off since i got it. Theory being if it ain't broke, dont fix it. Was getting some minor over reving when coming to idle, so I th...
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Base
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9
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1196
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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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33
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2003
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Fitting a Mikuni TM32 and a TM33
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1 2
)
(Preview)
I have been in email conversation with Peter Gray of Wilderness Wheels Morocco. They run a small fleet of blue TTRs alongside their KTM 450 EXCs. Peter says they find the TTR to be a totally competent off road bike in Morocco and is his preference over the KTMs for a ride over the mountains. He has rece...
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TTRfan
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68
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34982
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Carb Problem
(Preview)
HI I have just rebuilt my carb and fitted a new diaphragm . when i operate the throttle arm there is no jet of fuel coming out. the small jet was blocked. but it seem to be clear now. the diaphragm seems to be pumping ok but no fuel comes out, could it be the check vale, is there any way to test them. any help much...
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Don
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3
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615
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Removing the float
(Preview)
I'm currently rebuilding the carb on my ttr 250 and trying to isolate the revving and idle problem, how do I go about removing the float?
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Sammyboy
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1
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763
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Recurring pilot jet plugged
(Preview)
I have a 2006 TTR 250 that sat for a few years. After it was taken out of storage, the carb was soaked and rebuilt (All balls kit), fuel lines replaced, inline fuel filter replaced, etc. The pilot jet continually plugs up. I've had the carb off countless times (I've actually gotten pretty good at it)....
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tsherv
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2
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625
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no power over 80km/h
(Preview)
Like the title says. The bike has power after 80km. I had the carb apart and she was clean. jets look clean too. It was like this when it was purchased used.... Any ideas?
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Forgorin
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12
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904
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Carb swap?
(Preview)
Has anyone done a carb swap or is the stock carb good? For context I want to build my ttr for aggressive riding and xc races.
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Sammyboy
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1
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855
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Cold starting problem
(Preview)
I have had some cold starting problems on my 325 whereby it starts but quickly dies. I raised the pilot jet size up from 48 to 50 and it seemed to make an improvement but I haven't run the TTR often enough to test it thoroughly. I came across this video this morning and, even though the guy is dealing with a TT...
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TTRfan
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3
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1101
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Petrol leak
(Preview)
Hi, So I am a bit of a mechanical newbie (first post here too). I have a TTR250, but it stopped running. So I decided to try and clean out the carb as the first thing I've ever done to a bike (or even a car). Seemed to go alright, but after putting it all back together it has started leaking petrol out of the brea...
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PetahNZ
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11
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912
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Has anyone tried a jetting kit?
(Preview)
https://www.ebay.ie/itm/Yamaha-TTR250-TT-R-250R-TTR-250-cc-R250-Raid-Carburetor-Carb-Stage-1-3-Jet-Kit-/332032207413
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dlee22
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19
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1281
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Accelerator pump nozzle
(Preview)
Bough a 2003 TTR250, whoever tried to service carb before me stripped and pinched off (with pliers) the accelerator pump nozzle jet. You cant buy this part and it doesn't show on the exploded ipc diagram. Anyone have a fix or a carb they don't need?
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Dave White
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6
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1025
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Rain stops play?
(Preview)
I rode the TTR to work today and she ran perfectly. I left her parked in the rain for 8 hours. When I started her up to come home, she just didn't want to run. I managed to limp about 1/4 mile, sometimes running fine, then bogging and stalling. Next only running with the choke full out before stalling again?...
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Dan-in-a-Van
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5
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926
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Throttle sticking HELP
(Preview)
So i just bought myself a 1999 ttr250 and everything works amazing, however the idle is high. I can fix this by giving it throttle real quick and letting off and then the idle goes down to normal. The cable doesnt seem to be sticking. Not entirely sure whats going on here. Theres a post on this forum that de...
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DECYPHERX
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27
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3793
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Carb issues
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1 2 3
)
(Preview)
Hello all. I recently tore down my carb and cleaned it out because it had been sitting for a year and a half. I got it installed and put the bike back together, but when i turn on the pet****, gas comes out of both overflow lines. is it possible that i bent my floats?
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yamaha42
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148
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101661
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More detail on rebuilding the carb?
(Preview)
Where can i find more detailed info on where everything goes when you're putting the bowl assembly of the carb back together?
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NateGuy
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6
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1250
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99 250
(Preview)
My bike, after sitting for almost a year, would not get full power under full throttle First gear wasnt as noticable, but anything beyond that it seemed like it was choking on itself. Almost like a lope on a muscle car. I pulled the carb out, and I have a question about the accelerator pump thingy. Th...
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NateGuy
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4
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784
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No idle. Pop and stop
(Preview)
I found out why I had no tick over. Check out a previous owners handywork
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650Katman
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5
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955
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Float bowl check valve
(Preview)
Rebuilding a recently purchased used carb that was in quite a state and in checking the float bowl check valve (little top hat shaped brass thingy that seats into the bowl) found I couldn't blow air through it either way. Much soaking and prodding with a stick, then blowing the air line through it, and i...
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mossproof
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3
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1089
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Factory Settings carb
(Preview)
Hi Guys Am trying to find factory settings for a TTR 250cc '95 OE carburetor Teikei Y30P?
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Jesssss
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1
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1353
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all balls jets
(Preview)
Hi, I fitted the jets from the all balls kit, however the bike is running rough. it accelerates ok but pops through the silencer, on steady throttle it hesitates but no prblem starting. it takes a bit of time sometime for the tickover to settle down. Rob
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widge
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5
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690
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damaged thread
(Preview)
Ok I messed up! Somehow I managed to damage the thread in the float bowl for the drain screw. I must have put it in cross threaded. I the drain screw itself is damaged but more worryingly is the thread inside the bowl. Any suggestion what to do? Rob
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widge
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9
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823
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Carb Baffle Plate
(Preview)
Hoping for some help...again 🙄.I have stripped the carb down to give a deep clean and found there is no baffle plate in the float end. Will this cause me issues and are they available to purchase? Also any idea when carb service kits will be back in stock? Thanks in advance Matthew
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Firestorm809
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3
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920
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More carb woes
(Preview)
I went to start the bike after some time of it just sitting there. pulled out the choke and it fired up and reved like mad. pushed in the choke and it died. Tried it again and twisted the throttle stop to slow it down. Now will not start at all. I have got the carb off but before I take it to pieces anything...
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widge
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6
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952
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Carb inlet ‘plug’
(Preview)
My Carb inlet has a white plug in it, is this normal or has something been removed from the inlet?
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IanU
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3
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1008
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A "Fitting the carb" video tutorial
(Preview)
More mumbling - sorry! Also the video is over quarter of an hour so not an entertaining one! Have a laugh at my expense when I dropped can of petrol Brian
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TTRfan
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6
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1722
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Do not start after tipover
(Preview)
Google translator. I think it's a carburetor. After being tipped to the left (I have not topped the right one yet) I can not run the foot of the engine. I do not have an electric starter. It is only after about 15-20 minutes that the motor can be started. Such a mystery. What is going on? Thank you.
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tom13
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9
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1250
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Engine stops on hard accelleration
(Preview)
Can't find this one anywhere in the 5 pages of carb posts so here goes... Bike has a very intermittent fault, will run perfectly for a long time then suddenly stops completely or misfires on mid/high throttle. The problem started after stripping the bike for frame paint and valve guide seals, but did...
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mmwain
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9
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1292
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Do I need to re-jet for Pyrenees? Anyone been?!
(Preview)
Hi, Hopefully there's someone out there who's TTR'd the Pyrenees! Myself and a mate are going in a months time, both ride standard TTR250's, so the question is, will we need to re-jet? Going to be 10,000 feet max. Appreciate any help/light anyone can shed please. cheers, Tim
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ttrtim
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12
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1725
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New muffler does carb need adjusting?
(Preview)
So, I put on a new muffler over the weekend and took the bike for a spin. Wow! More grunt! I feel like she has more torque now (able to change gears earlier at lower speeds). I am hearing a bit of backfire when decelerating at higher RPMs. I am unsure if this is because it is running lean or rich (haven't...
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Forgorin
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12
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1411
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