A forum for owners of Yamaha TTR250 trail and enduro bikes!

Firestorm809 · Firestorm809

Yet another problem I have encountered.... I have serviced the carb (ultrasonic cleaned and All balls service kit fitted) and the bike sounds and runs lovely....until I hit a long strech of uphill road in high gear and the bike eventually cuts out. It seems the carb is being starved of fuel. The bike wi...

TTR2501966 · TTR2501966

Hi all, During deceleration/over run I get a popping/backfiring. The engine also hunts when I'm at low load/low revs. It also jerks when I'm just rolling the throttle - such as rolling up to a T junction and gently pulling away without stopping. Everything is fine when I'm loading up the engine wi...

chrishughes1989 · chrishughes1989

can I get parts to stop play in the joint? or do I have to get the whole rebuild kit?

bmw · bmw

Went to start up this morning, cranked over, fired but did not catch tried again ,now cranking faster than normal no sign of starting. Checked with the kick start, by hand no resistance worth mentioning. Has anyone had this problem, there was no unusual noise at all and it was running perfectly w...

Fat Leopard · Fat Leopard

I have had little luck finding a replacement headlight bulb for the '00 US TTR. The local dealer *may* be able to get one in a few months for about $65 each - seriously? I have a Polisport Halo that I intend to fit at some point but I wanted to repair the existing setup for simplicity. Well... this is what I di...

xavier · xavier

Hello, As I have just explain in my presentation, I bought a 93's TTR250 last saturday and I m starting to check the parts which need to be replace. The first one is the rubber pipe between the carburator and the cylinder;, it is completely worn and probably creates an air leak wich can explain why the en...

honda15i · honda15i

The original bolt cap can be easily damaged. so as alternative i found cheap backup bolt from mother china. seems to fit ok -- Edited by honda15i on Wednesday 15th of May 2019 08:28:45 PM

honda15i · honda15i

These Yamaha top bearings does not last long. Every season I need to replace them. I found alternative top bearing from Germany for the cost of 15€. It is 1 or 2 mm narrower than original, but in double less price than yamaha's. Fits perfectly. Bearing code for googling - GXSW 12.26 Adding photos (comp...

Ross · Ross

Hi I have recently had the sprag clutch on My TTR replaced as there was a noise when you switched the bike off. The mechanic that did the job said there was significant wear on the sprag you could rotate it both ways before it would lock up. The Boss gear he said had a little bit of wear but he didn't think it w...

robs · robs

Hi all, I have a couple of questions relating to the TTR gearbox, hopefully the collective genius of the forum can help me! I've had a couple of occasions recently where I get stuck in first gear. Gear changes on the low gears can also tend to seem very stiff / like they are not engaging properly. Higher ge...

Captdanno · Captdanno

Hello guys new to this but having a little problem with my new to me 2006 ttr 250. Its four stroke. and the problem is it starts like a dream with the electric starter... But when i get into sticky situations and use kick starter it wont start bike.... It will engage but will not give enough umph to actuall...

Firestorm809 · Firestorm809

I have a lovely dent in the right side of my metal tank. Any tips on how to straighten this out??? Matthew

honda15i · honda15i

one of mine ttrs bogs on high rpm around 6500-7000. It seems like I hit rpm limiter, engine doesn’t reach full power. My second TTR reach top high rpm without bogging. I took these parts from second ttr and installed on first: 1. Carb with fuel hoses and one way valves 2. Cdi 3. Ignition coil 4. Spark plug 5...

tom13 · tom13

Google translator If I put the ttr on the right side, can I unscrew the oil plug? Does the oil leak? I want to replace the copper pad because I have a leak.

honda15i · honda15i

Hi, I'm not a fan of Chinese items however it happened I have head and cylinder gaskets for price of 7£. The head gasket is very thin and without teflon. Yamaha gasket I think has two or three gaskets stamped and painted with teflon. Has anybody tried chinese gaskets? See photos. -- Edited by honda15i on...

Per Ulv · Per Ulv

Hi Anyone knows if a stator from a later model wold fit? IE the year 1999? Having problems finding av stator for my bike from 1994. Thanks Per Arne Bustnes Norway

BikerMat · BikerMat

Hi guys, Small problem with the compression damping clicker on the reservoir of the rear shock on my bike. It doesn't like to turn or click It rotates a few degrees either way but seems to be pretty stuck and I don't fancy forcing it. This is the closest picture I have of it currently, any ideas as to whats u...

TTRfan · TTRfan

I thought it might be interesting to post up some of the TTR nasties that I have come across so that worse case scenarios can be viewed. Please feel free to add your own. First off, how about this for a home-made timing chain tensioner? Or a delaminated standard case saver? Or a valve seat that fell out?...

tripodtiger · tripodtiger

What is this seal? Is it a seal? It's not shown on the Yamaha Parts Finder microfiche that I access on line. I forgot - 2002 TTR in Oz. The bolt behind drains the oil from the left side exhaust cam well.

TerryK · TerryK

Hi guys, the right tank decal is blistered, anyone had this, tried to work the air out but it keeps coming back, this bike is pretty tidy apart from this decal, checked with Yamaha & they want $586 for the pair of decals....no way I have ordered a set of Ballards decals for $60 but may put them away for a...

Ross · Ross

Hi Occasionally my TTR would make a clunk when you switched it off perhaps once in twenty times. Just recently this seems to be getting more frequent so much so that I have just come home from a Dales ride a day early as I didnt want to do any damage to the engine having just rebuilt the top end. I guess now it...

mmwain · mmwain

My 04 blue plastic tank has become completely non-gas (as in vapour, not as in American petrol!) proof, which I think is due to ethanol in fuel these days making the plastic go porous to gas, as detailed on other websites. The OE stickers bubbled off and new stickers soon followed. The tank is complet...

The BushMan · The BushMan

Okay, a may be being stupid here but I'm having trouble getting the old link out. I have removed the rubber bungs and removed the 17" bolt but cannot get the bolt/sleeve to budge, the old link moves freely from side to side alright. Is there something I'm missing or doing wrong? Any help appreciated.

Firestorm809 · Firestorm809

I'm looking to replace the bolts on my 1993 OE. Is there a quick guide to the bolt sizes anywhere? Also any advice on purchasing a bolt kit would be greatly appreciated.

honda15i · honda15i

im having issues removing head pipe. I was heating it, using hummer. No luck so far. any suggestion?

Evil ttr · Evil ttr

Ok guys im new and i have a 2000 ttr250 and it wont start and didnt when i got it as i had to pull the head and re tap the spark plug hole as someone stripped half the thread. So i replaced the sparky and head gasket i also stripped and cleaned the carby it was full of hardened fuel. It wont start at all not even a ba...

T Mozza · T Mozza

Hey everyone, Had a number of issues of the last few days. It all started when I was trail riding and I suddenly lost all power to the bike, checked fuse and was all good. Luckily was at the top of a mountain so tried to bump start it and while the motor would turn over, the second it ran out of momentum it wou...

honda15i · honda15i

Hi, My friend's TTR has bad noise coming from cold engine only. Please listen audio recording from 7s: https://1drv.ms/u/s!Ar9YNbdz-p-shJpNFEbPR-5GBH0iBA We suspect automatic tensioner. The camshaft chain was changed last year. When engine is wormed the noise is gone.

chrisstdt · chrisstdt

The bite on my clutch is getting very close to the end of travel on the lever and i see the clutch arm on the engine end is sbout 20mm from the mark on the casing (its almost touching the bracket on the frame) Is it worth taking the side cover off to adjust the clutch or will this make no difference and will i be b...

Brighton Brad · Brighton Brad

My Raid digital speedo seems to have given up the ghost, are they possible to repair? Do we know a man(or woman) what does do fix them up ??? Thank, Brad

Topic		Started By	Replies	Views	Last Post
	Losing power going for long periods uphill. (Preview) Yet another problem I have encountered.... I have serviced the carb (ultrasonic cleaned and All balls service kit fitted) and the bike sounds and runs lovely....until I hit a long strech of uphill road in high gear and the bike eventually cuts out. It seems the carb is being starved of fuel. The bike wi...	Firestorm809	3	1192	Jun 5, 2019 by ttr steve
	Back firing and popping from exhaust on deceleration/over run (Preview) Hi all, During deceleration/over run I get a popping/backfiring. The engine also hunts when I'm at low load/low revs. It also jerks when I'm just rolling the throttle - such as rolling up to a T junction and gently pulling away without stopping. Everything is fine when I'm loading up the engine wi...	TTR2501966	8	2402	Jun 5, 2019 by jasparach
	play in joint (Preview) can I get parts to stop play in the joint? or do I have to get the whole rebuild kit?	chrishughes1989	4	989	Jun 3, 2019 by comeragh
	loss of compression (Preview) Went to start up this morning, cranked over, fired but did not catch tried again ,now cranking faster than normal no sign of starting. Checked with the kick start, by hand no resistance worth mentioning. Has anyone had this problem, there was no unusual noise at all and it was running perfectly w...	bmw	1	1346	May 29, 2019 by TTRfan
	US model headlight bulb problems (Preview) I have had little luck finding a replacement headlight bulb for the '00 US TTR. The local dealer may be able to get one in a few months for about $65 each - seriously? I have a Polisport Halo that I intend to fit at some point but I wanted to repair the existing setup for simplicity. Well... this is what I di...	Fat Leopard	7	977	May 20, 2019 by Fat Leopard
	adapter carburator inlet from china? (Preview) Hello, As I have just explain in my presentation, I bought a 93's TTR250 last saturday and I m starting to check the parts which need to be replace. The first one is the rubber pipe between the carburator and the cylinder;, it is completely worn and probably creates an air leak wich can explain why the en...	xavier	5	950	May 16, 2019 by ttr steve
	Chinese cnc machined oil filler cap bolt (Preview) The original bolt cap can be easily damaged. so as alternative i found cheap backup bolt from mother china. seems to fit ok -- Edited by honda15i on Wednesday 15th of May 2019 08:28:45 PM	honda15i	2	1278	May 16, 2019 by ttboof
	Alternative top bearing for rear Shock absorber (Preview) These Yamaha top bearings does not last long. Every season I need to replace them. I found alternative top bearing from Germany for the cost of 15€. It is 1 or 2 mm narrower than original, but in double less price than yamaha's. Fits perfectly. Bearing code for googling - GXSW 12.26 Adding photos (comp...	honda15i	3	1212	May 15, 2019 by honda15i
	Sprag Clutch Boss Gear (Preview) Hi I have recently had the sprag clutch on My TTR replaced as there was a noise when you switched the bike off. The mechanic that did the job said there was significant wear on the sprag you could rotate it both ways before it would lock up. The Boss gear he said had a little bit of wear but he didn't think it w...	Ross	7	1065	May 13, 2019 by Ross
	Sticking gear shifts (Preview) Hi all, I have a couple of questions relating to the TTR gearbox, hopefully the collective genius of the forum can help me! I've had a couple of occasions recently where I get stuck in first gear. Gear changes on the low gears can also tend to seem very stiff / like they are not engaging properly. Higher ge...	robs	8	1155	May 12, 2019 by robs
	Kick start problem 2006 the 250 (Preview) Hello guys new to this but having a little problem with my new to me 2006 ttr 250. Its four stroke. and the problem is it starts like a dream with the electric starter... But when i get into sticky situations and use kick starter it wont start bike.... It will engage but will not give enough umph to actuall...	Captdanno	10	2198	May 12, 2019 by JPVIC
	Tank problem (Preview) I have a lovely dent in the right side of my metal tank. Any tips on how to straighten this out??? Matthew	Firestorm809	5	901	May 9, 2019 by mossproof
	Engine bogs on high rpm (Preview) one of mine ttrs bogs on high rpm around 6500-7000. It seems like I hit rpm limiter, engine doesn’t reach full power. My second TTR reach top high rpm without bogging. I took these parts from second ttr and installed on first: 1. Carb with fuel hoses and one way valves 2. Cdi 3. Ignition coil 4. Spark plug 5...	honda15i	9	1175	May 8, 2019 by mossproof
	If I put the ttr on the right side, can I unscrew the oil plug? (Preview) Google translator If I put the ttr on the right side, can I unscrew the oil plug? Does the oil leak? I want to replace the copper pad because I have a leak.	tom13	5	1207	May 8, 2019 by tom13
	chinese gaskets (Preview) Hi, I'm not a fan of Chinese items however it happened I have head and cylinder gaskets for price of 7£. The head gasket is very thin and without teflon. Yamaha gasket I think has two or three gaskets stamped and painted with teflon. Has anybody tried chinese gaskets? See photos. -- Edited by honda15i on...	honda15i	3	1083	May 8, 2019 by honda15i
	Stator TTR 250 1994 Stator (Preview) Hi Anyone knows if a stator from a later model wold fit? IE the year 1999? Having problems finding av stator for my bike from 1994. Thanks Per Arne Bustnes Norway	Per Ulv	3	1275	May 2, 2019 by TTRfan
	Rear shock compression damping knob stuck (Preview) Hi guys, Small problem with the compression damping clicker on the reservoir of the rear shock on my bike. It doesn't like to turn or click It rotates a few degrees either way but seems to be pretty stuck and I don't fancy forcing it. This is the closest picture I have of it currently, any ideas as to whats u...	BikerMat	2	1658	May 2, 2019 by BikerMat
	"Black museum" - pics of TTR nasties - not suitable for younger viewers! (Preview) I thought it might be interesting to post up some of the TTR nasties that I have come across so that worse case scenarios can be viewed. Please feel free to add your own. First off, how about this for a home-made timing chain tensioner? Or a delaminated standard case saver? Or a valve seat that fell out?...	TTRfan	6	4798	Apr 30, 2019 by Fat Leopard
	Please help - unidentified seal leaking. (Preview) What is this seal? Is it a seal? It's not shown on the Yamaha Parts Finder microfiche that I access on line. I forgot - 2002 TTR in Oz. The bolt behind drains the oil from the left side exhaust cam well.	tripodtiger	5	1133	Apr 30, 2019 by tripodtiger
	Tank Decals (Preview) Hi guys, the right tank decal is blistered, anyone had this, tried to work the air out but it keeps coming back, this bike is pretty tidy apart from this decal, checked with Yamaha & they want $586 for the pair of decals....no way I have ordered a set of Ballards decals for $60 but may put them away for a...	TerryK	14	1667	Apr 29, 2019 by Fat Leopard
	Possible Sprag clutch probelms (Preview) Hi Occasionally my TTR would make a clunk when you switched it off perhaps once in twenty times. Just recently this seems to be getting more frequent so much so that I have just come home from a Dales ride a day early as I didnt want to do any damage to the engine having just rebuilt the top end. I guess now it...	Ross	3	1181	Apr 29, 2019 by Ross
	Porous blue plastic tank bubbles the stickers off (Preview) My 04 blue plastic tank has become completely non-gas (as in vapour, not as in American petrol!) proof, which I think is due to ethanol in fuel these days making the plastic go porous to gas, as detailed on other websites. The OE stickers bubbled off and new stickers soon followed. The tank is complet...	mmwain	11	1350	Apr 29, 2019 by ttboof
	Fitting a lowering link (Preview) Okay, a may be being stupid here but I'm having trouble getting the old link out. I have removed the rubber bungs and removed the 17" bolt but cannot get the bolt/sleeve to budge, the old link moves freely from side to side alright. Is there something I'm missing or doing wrong? Any help appreciated.	The BushMan	20	2307	Apr 28, 2019 by Falkie
	Bolt replacement and sizes for OE 1993 (Preview) I'm looking to replace the bolts on my 1993 OE. Is there a quick guide to the bolt sizes anywhere? Also any advice on purchasing a bolt kit would be greatly appreciated.	Firestorm809	2	956	Apr 23, 2019 by Firestorm809
	Removing head pipe (Preview) im having issues removing head pipe. I was heating it, using hummer. No luck so far. any suggestion?	honda15i	2	1349	Apr 22, 2019 by honda15i
	No start issue (Preview) Ok guys im new and i have a 2000 ttr250 and it wont start and didnt when i got it as i had to pull the head and re tap the spark plug hole as someone stripped half the thread. So i replaced the sparky and head gasket i also stripped and cleaned the carby it was full of hardened fuel. It wont start at all not even a ba...	Evil ttr	19	1182	Apr 19, 2019 by Evil ttr
	Help Diagnosing issue (Bike died on ride, battery swollen, new battery, wont start) (Preview) Hey everyone, Had a number of issues of the last few days. It all started when I was trail riding and I suddenly lost all power to the bike, checked fuse and was all good. Luckily was at the top of a mountain so tried to bump start it and while the motor would turn over, the second it ran out of momentum it wou...	T Mozza	11	1178	Apr 17, 2019 by Fat Leopard
	bad metal noise from engine (Preview) Hi, My friend's TTR has bad noise coming from cold engine only. Please listen audio recording from 7s: https://1drv.ms/u/s!Ar9YNbdz-p-shJpNFEbPR-5GBH0iBA We suspect automatic tensioner. The camshaft chain was changed last year. When engine is wormed the noise is gone.	honda15i	1	865	Apr 17, 2019 by ttboof
	clutch adjustment (Preview) The bite on my clutch is getting very close to the end of travel on the lever and i see the clutch arm on the engine end is sbout 20mm from the mark on the casing (its almost touching the bracket on the frame) Is it worth taking the side cover off to adjust the clutch or will this make no difference and will i be b...	chrisstdt	22	5797	Apr 16, 2019 by RMKREH
	Digital Speedometer Repairs (Preview) My Raid digital speedo seems to have given up the ghost, are they possible to repair? Do we know a man(or woman) what does do fix them up ??? Thank, Brad	Brighton Brad	4	1827	Apr 15, 2019 by ttr steve
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