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

kylarama · kylarama

Years ago when I last went riding I used to fill up my backpack with all types of useless crap that was heavy and probably only usefull on everyone elses bikes. What basic tools and spares specifically suited to a TTR should I carry as a minimum? Generally we wouldn't venture anymore than about 100km...

TTRfan · TTRfan

As suggested by brindabella, I have started this thread to show my own choice of "proven/economical/useful workshop consumables". I have started off with my UK thoughts maybe other owners from USA, Australia, etc, can weigh in with their local equivalent brands...... First off, one o...

TTRfan · TTRfan

Thread repair kits. These have got me out of trouble on a regular basis! Available quite cheaply on eBay. For the manufacturer's page - see here

Forgorin · Forgorin

So, I'm looking for more power! I have a '94 raid. I am hoping to add electric grips and an electric vest. Grips run at about 60 watts. That's almost half of what the stator produces. Are there any aftermarket stators for the bike? Am I looking at a rebuild?

mallywoods · mallywoods

Hello again, today i am servicing my air filter, I have checked out previous threads and after washing in warm soapy water and allowing to dry, some of you use 2 stroke oil instead of proper air filter oil. I have 2 stroke oil and willing to bow down to all of your years of experience and use it. Please can an...

Spyrious · Spyrious

Hello! It seems that the coil lead on my ttr has some internal damage.Sometimes when unplugging and putting it back i get misfires. I have cut a few mm of the end of the lead and screwed the plug cap back in and it cured the problem.But i already had to do it twice now. Is it possible to remove the lead from the...

wobbly · wobbly

Seem to have developed a starting problem on the ttr, where I put the choke and fuel on crank the engine, it starts straight away but the dies. I can do this 4/5 times and eventually I can get it to keep going but before this it used to start on the button. When its warm/hot there,s no problem I can start it eas...

Darren · Darren

I have a 1995 250 raid and have an oil leak. I think it's comming from the front sprocket area..any Ideas and is it an easy repair for a novice. thanx Guys. Daz

TTR2501966 · TTR2501966

Hi all,I have a problem with the charging system on my newly acquired TTR250 1995.Symptoms are battery drain of 0.2V/hour, so it’s flat the next day. Also no charging when I rev the bike quite high(I don’t have an inductive tachometer) – the voltage across the battery stays at its initial charge of ap...

Tucker250 · Tucker250

Hi was wondering if anyone could help me before I pull any more of my hair out?? I replaced the oil and oil filter on my ttr today all was ok untill I started the bike up after i had finished as I noticed That when I rev the bike oil comes out of the top of the oil filter housing and when I release the revs and she i...

zipper · zipper

Hi. I got a 250 last August with 10.000 kms on the clock. Im sure its not the real mileage as the previous owner told me the speedo did not work for some time. I love pics. Its easier and not so boring. 1st pic - as it arrived home! 😁

pug · pug

So Bike was running fine end of last year put away for a bit ok 9 months went to get it out for a trip a month back an Houston we have a problem bike was popping and banging I have cleaned the carb fresh and fresh fuel new carb cables new inlet rubber she's still popping and banging the same and wont rev out it fe...

mossproof · mossproof

In rebuilding my 325 into a 350 as it has finally succumbed to the dreaded barrel weep, I have found the 6th gear in the transmission is quite badly pitted on the tooth surface. I know this is an issue with the xt/tt 600 engines (top gear being 5th in these) but didn't realise it was much of a problem on our en...

Ttboof · Ttboof

My ignition pick up has gone open circuit. I've ordered one on ebay that I think I can fit to the existing stator/wiring. Being Chinese if it works I might sell the ttr because I can't trust it Tried to buy a complete stator but apparently not available any more Has anyone got a good fix -- Edited by T...

Susan Parker · Susan Parker

PO55 in pieces again - I do not love this bike - and just to make my life more interesting, one of the exhaust manifold nuts sheared off when I was removing the exhaust pipe. Any advice as to how to remove the stud - I have tried loads of WD40 and heating with the blow torch, but it still wont budge.

Tommy the cat · Tommy the cat

Hey, So 8 ish years ago I had the mess of the decompressor bung leaking so changed it for the aluminium turned bug sold on totally ttrs. Now its leaking again. I havent pulled it out but has anyone else had any issues? O ring need replacing? I was just gonna buy a new one but not for sale now. I changed the bolt...

TTR2501966 · TTR2501966

Hi all, I’ve had my TTR 250 1996 for 10 years . The master cylinder failed a few years ago, with rear brake sticking on, and I replaced it with an aftermarket one. The rear brake started sticking again last week and cracking off the master cylinder high pressure connection didn’t free the rear brake so t...

Brighton Brad · Brighton Brad

Hi kids, does anyone have some pics of the wiring loom routing, I’ve a workshop manual, but I’m still struggling!! I’ve had the frame powder coated and of course didn’t take any pics before disassemblage 🫣 lesson learnt. . . maybe!! Any pics most appreciate, need to get it back together asap 🙏 ps is a rai...

apw99 · apw99

Has anyone found a reasonably priced lithium battery that fits in the TTR tight dimensions? I have a 93 model, I assume the later models have the same dimension carrier 150x90x60, can anyone verify? thank you.

IOWChris · IOWChris

Just rebuilding parts of my 350 while I wait for a bolt to turn up and tried getting the exhaust on Im sure I’m being stupid here but I can’t see what I’m missing. The header doesn’t go on, not even close! The silencer end only goes through the frame in one orientation and that lands the head end jammed into t...

Maxwellstorm · Maxwellstorm

hey all trying to diagnose a no spark issue I did accidentally blow up the ignition coil trying to do a bench test on it so a new one is on the way however after checking a few things i'm not so sure the coil was ever the issue few things I found: voltage at the orange wire going into coil is consistently readi...

apw99 · apw99

Hi, my 1993 TTR was ticking over and suddenly cut out with a loud bang. It is now dead and the starter button makes no sound on activation. I put it in gear and rocked it to free up the sprag clutch in case it was stuck but no joy. The starter has always had a recoil sound after starting, I've had the bike at lea...

dr268 · dr268

took the carb off and the inlet rubber has delaminated question is, are any of the after market inlet rubbers any good or should i stick with genuine ? I see some pretty nasty looking ones at less than £10 and have no interest but I see some at approx £30 that look as if they are actually made of rubber and cou...

dr268 · dr268

is there an alternative to the Yamaha shock protection flap on a 03 TTR250 ? There are plenty listed but am unsure if any of them fit or could be modified to fit thanks

IOWChris · IOWChris

Fitting my 350 kit and have just started reassembling. I’ve pressed the crankshaft into the bearing using the flywheel bolt and a socket per the suggestion in the excellent guide but the teeth on the crank are sitting slightly higher than the balancer teeth The picture I took before taking apart doe...

JonScott · JonScott

I measured my barrel with a bore gauge. It's out of round by about 0.003 (3 thou) Google says it's time for a rebore, would everyone here agree? Would .5mm be enough? Would anyone like to recommend a machine shop, either that I can post to, or that's in the Didcot (S.Oxon.) area? Thanks in advance. Jon....

Ttboof · Ttboof

Ive been putting it off for ages but repacked the steering head bearings today . 40 deg in the shed so a bit of a chore lol but it good to have it done

Serj · Serj

I have a 2002 TTR250, starts up fine but when I give it throttle and the rpms settle down, it does this weird vibration/rattling like it has an air leak and the rpms kinda go up a little. Anyone experienced this before? Here is a link to a video I took. https://share.icloud.com/photos/03dsY_k6vXv6i-...

The Drifter · The Drifter

can anyone help i changed my front tyre on my ttr 250 and i have over tightened one of the axle holder bolts [10mm] which caused it to shear [im gutted] and i think they are welded to the fork as anyone got any suggestions on my options without great expense.

Browncow · Browncow

New to me, ive just got a 2003 yamaha ttr250 , when you put a fully charged up battery connected and try the starter all i here is a slight click, i wondered what to look at to fix , this, the compression seems low when turning the engine over on the kickstarter with the spark plug in, its done under a 1000 mile...

Topic		Started By	Replies	Views	Last Post
	STICKY: Basic tool kit & spares. What to carry on a ride? (Preview) Years ago when I last went riding I used to fill up my backpack with all types of useless crap that was heavy and probably only usefull on everyone elses bikes. What basic tools and spares specifically suited to a TTR should I carry as a minimum? Generally we wouldn't venture anymore than about 100km...	kylarama	21	21695	June 11th by Ttboof
	STICKY: Essential workshop consumables - my choice - UK products (Preview) As suggested by brindabella, I have started this thread to show my own choice of "proven/economical/useful workshop consumables". I have started off with my UK thoughts maybe other owners from USA, Australia, etc, can weigh in with their local equivalent brands...... First off, one o...	TTRfan	8	7637	Mar 10, 2024 by TTRfan
	STICKY: Essential workshop tools! Please add yours to the thread... (Preview) Thread repair kits. These have got me out of trouble on a regular basis! Available quite cheaply on eBay. For the manufacturer's page - see here	TTRfan	30	29735	Jan 22, 2024 by Ttboof
	STICKY: Output of stator (AC magneto generator) and wattage used by bulbs, etc. (Preview) So, I'm looking for more power! I have a '94 raid. I am hoping to add electric grips and an electric vest. Grips run at about 60 watts. That's almost half of what the stator produces. Are there any aftermarket stators for the bike? Am I looking at a rebuild?	Forgorin	10	6930	Jan 3, 2024 by Ttboof
	Air Filters (Preview) Hello again, today i am servicing my air filter, I have checked out previous threads and after washing in warm soapy water and allowing to dry, some of you use 2 stroke oil instead of proper air filter oil. I have 2 stroke oil and willing to bow down to all of your years of experience and use it. Please can an...	mallywoods	6	971	2m ago by swilow
	Ignition Coil Lead replacement possible? coil lead ignition wire (Preview) Hello! It seems that the coil lead on my ttr has some internal damage.Sometimes when unplugging and putting it back i get misfires. I have cut a few mm of the end of the lead and screwed the plug cap back in and it cured the problem.But i already had to do it twice now. Is it possible to remove the lead from the...	Spyrious	6	1204	5m ago by ttr250909
	Starting problems (Preview) Seem to have developed a starting problem on the ttr, where I put the choke and fuel on crank the engine, it starts straight away but the dies. I can do this 4/5 times and eventually I can get it to keep going but before this it used to start on the button. When its warm/hot there,s no problem I can start it eas...	wobbly	13	1167	20m ago by bahenac ttr250
	Oil leak (Preview) I have a 1995 250 raid and have an oil leak. I think it's comming from the front sprocket area..any Ideas and is it an easy repair for a novice. thanx Guys. Daz	Darren	20	11702	27m ago by ttr250909
	Charging problem - battery drain (Preview) Hi all,I have a problem with the charging system on my newly acquired TTR250 1995.Symptoms are battery drain of 0.2V/hour, so it’s flat the next day. Also no charging when I rev the bike quite high(I don’t have an inductive tachometer) – the voltage across the battery stays at its initial charge of ap...	TTR2501966	7	2585	50m ago by ttr250909
	oil leak from filter housing??? (Preview) Hi was wondering if anyone could help me before I pull any more of my hair out?? I replaced the oil and oil filter on my ttr today all was ok untill I started the bike up after i had finished as I noticed That when I rev the bike oil comes out of the top of the oil filter housing and when I release the revs and she i...	Tucker250	10	1648	1h ago by bahenac ttr250
	Top end rebuild - stock TTR (Preview) Hi. I got a 250 last August with 10.000 kms on the clock. Im sure its not the real mileage as the previous owner told me the speedo did not work for some time. I love pics. Its easier and not so boring. 1st pic - as it arrived home! 😁	zipper	34	2833	1h ago by bahenac ttr250
	Bike popping and banging (Preview) So Bike was running fine end of last year put away for a bit ok 9 months went to get it out for a trip a month back an Houston we have a problem bike was popping and banging I have cleaned the carb fresh and fresh fuel new carb cables new inlet rubber she's still popping and banging the same and wont rev out it fe...	pug	6	252	August 8th by JOHNYBOY
	6th gear wear and solutions (Preview) In rebuilding my 325 into a 350 as it has finally succumbed to the dreaded barrel weep, I have found the 6th gear in the transmission is quite badly pitted on the tooth surface. I know this is an issue with the xt/tt 600 engines (top gear being 5th in these) but didn't realise it was much of a problem on our en...	mossproof	11	311	August 7th by mossproof
	replaced ignition pick up (Preview) My ignition pick up has gone open circuit. I've ordered one on ebay that I think I can fit to the existing stator/wiring. Being Chinese if it works I might sell the ttr because I can't trust it Tried to buy a complete stator but apparently not available any more Has anyone got a good fix -- Edited by T...	Ttboof	34	3176	August 4th by Ttboof
	Exhaust manifold studs. (Preview) PO55 in pieces again - I do not love this bike - and just to make my life more interesting, one of the exhaust manifold nuts sheared off when I was removing the exhaust pipe. Any advice as to how to remove the stud - I have tried loads of WD40 and heating with the blow torch, but it still wont budge.	Susan Parker	4	175	July 23rd by Ttboof
	Decompressor bung (Preview) Hey, So 8 ish years ago I had the mess of the decompressor bung leaking so changed it for the aluminium turned bug sold on totally ttrs. Now its leaking again. I havent pulled it out but has anyone else had any issues? O ring need replacing? I was just gonna buy a new one but not for sale now. I changed the bolt...	Tommy the cat	5	327	July 17th by ttr steve
	Rear brake caliper- Piston swollen?? (Preview) Hi all, I’ve had my TTR 250 1996 for 10 years . The master cylinder failed a few years ago, with rear brake sticking on, and I replaced it with an aftermarket one. The rear brake started sticking again last week and cracking off the master cylinder high pressure connection didn’t free the rear brake so t...	TTR2501966	2	278	July 10th by mossproof
	Wiring Loom Routing!! (Preview) Hi kids, does anyone have some pics of the wiring loom routing, I’ve a workshop manual, but I’m still struggling!! I’ve had the frame powder coated and of course didn’t take any pics before disassemblage 🫣 lesson learnt. . . maybe!! Any pics most appreciate, need to get it back together asap 🙏 ps is a rai...	Brighton Brad	5	267	July 5th by TTRfan
	Lithium Battery? (Preview) Has anyone found a reasonably priced lithium battery that fits in the TTR tight dimensions? I have a 93 model, I assume the later models have the same dimension carrier 150x90x60, can anyone verify? thank you.	apw99	2	256	June 11th by Ttboof
	Fitting exhaust header (Preview) Just rebuilding parts of my 350 while I wait for a bolt to turn up and tried getting the exhaust on Im sure I’m being stupid here but I can’t see what I’m missing. The header doesn’t go on, not even close! The silencer end only goes through the frame in one orientation and that lands the head end jammed into t...	IOWChris	5	565	May 16th by TTRfan
	No spark no spark spakr plug ignition (Preview) hey all trying to diagnose a no spark issue I did accidentally blow up the ignition coil trying to do a bench test on it so a new one is on the way however after checking a few things i'm not so sure the coil was ever the issue few things I found: voltage at the orange wire going into coil is consistently readi...	Maxwellstorm	1	306	May 13th by TTRfan
	Bike cut out with a loud bang (Preview) Hi, my 1993 TTR was ticking over and suddenly cut out with a loud bang. It is now dead and the starter button makes no sound on activation. I put it in gear and rocked it to free up the sprag clutch in case it was stuck but no joy. The starter has always had a recoil sound after starting, I've had the bike at lea...	apw99	2	347	April 27th by apw99
	inlet rubber advice required (Preview) took the carb off and the inlet rubber has delaminated question is, are any of the after market inlet rubbers any good or should i stick with genuine ? I see some pretty nasty looking ones at less than £10 and have no interest but I see some at approx £30 that look as if they are actually made of rubber and cou...	dr268	3	443	March 31st by JOHNYBOY
	Rear shock flap alternative ? (Preview) is there an alternative to the Yamaha shock protection flap on a 03 TTR250 ? There are plenty listed but am unsure if any of them fit or could be modified to fit thanks	dr268	1	340	March 17th by Ttboof
	Pulling crank into main bearing (Preview) Fitting my 350 kit and have just started reassembling. I’ve pressed the crankshaft into the bearing using the flywheel bolt and a socket per the suggestion in the excellent guide but the teeth on the crank are sitting slightly higher than the balancer teeth The picture I took before taking apart doe...	IOWChris	6	476	Feb 12, 2026 by ttr steve
	Is it time for a rebore? (tolerances) (Preview) I measured my barrel with a bore gauge. It's out of round by about 0.003 (3 thou) Google says it's time for a rebore, would everyone here agree? Would .5mm be enough? Would anyone like to recommend a machine shop, either that I can post to, or that's in the Didcot (S.Oxon.) area? Thanks in advance. Jon....	JonScott	5	495	Jan 25, 2026 by mossproof
	Lubed the head bearings (Preview) Ive been putting it off for ages but repacked the steering head bearings today . 40 deg in the shed so a bit of a chore lol but it good to have it done	Ttboof	4	544	Dec 15, 2025 by Ttboof
	Possible air leak Idle rpm leak carb (Preview) I have a 2002 TTR250, starts up fine but when I give it throttle and the rpms settle down, it does this weird vibration/rattling like it has an air leak and the rpms kinda go up a little. Anyone experienced this before? Here is a link to a video I took. https://share.icloud.com/photos/03dsY_k6vXv6i-...	Serj	2	764	Dec 7, 2025 by Ttboof
	Front Fork clamp bolt sheared !!! (Preview) can anyone help i changed my front tyre on my ttr 250 and i have over tightened one of the axle holder bolts [10mm] which caused it to shear [im gutted] and i think they are welded to the fork as anyone got any suggestions on my options without great expense.	The Drifter	13	1813	Dec 5, 2025 by AussieChookchaser
	2003 yamaha ttr250, when battery fully charged, starter just makes a click noise (Preview) New to me, ive just got a 2003 yamaha ttr250 , when you put a fully charged up battery connected and try the starter all i here is a slight click, i wondered what to look at to fix , this, the compression seems low when turning the engine over on the kickstarter with the spark plug in, its done under a 1000 mile...	Browncow	1	525	Nov 26, 2025 by Ttboof
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