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

66T · 66T

Hullo all. I realise this is the reverse to the usual 'upgrade', but does anyone know what the rating of standard weight fork springs is? I've got heavier ones fitted, and as I get older and thus even slower, I need to go back to standard. I'll also be working in some rocky country next year, so plush is ver...

L16MHU · L16MHU

Hi guys. So when I brought my ttr is has the oko 34mm flat side fitted, when I brought the bike it was perfecr around 40 miles into the ride home the bike started to run away with its self and idle fast at traffic lights , I made it home none the less, I put the bike away in the back cornor of my garage and a week...

Markvan · Markvan

I thought i made a tool but was thinking as i tried to loosen the nut should i have tried harder and made a better tool. Well snap goes the stud. Its on a TTR motor thats being wrecked but i still dont like breaking anything. I seen the photos of other home made basket removers , but guess i was to lazy to try and...

L16MHU · L16MHU

Hi after my post yesterday I found the problem wasn't the spragg clutch it was the woodruff key was snapped is this a common problem? Does anyone know the size?? I tried buying from ttr shop but can't pay by debit card and they seem a bit pricey

Moo · Moo

Does anybody know if the standard linkage seals fit into the kouba link? Seals have fallen apart and need replacing

L16MHU · L16MHU

hi, had a bit of a problem with my ttr today, only the second time i have ridden it after a hour of getting out the garage as evryone i share with parked like a a**h**e, the guy i brought the bike from had been using it evryday so i wasnt suprised it had a flat battry after a week, not a problem i thought so u...

NiftyFifty · NiftyFifty

I'm increasingly using my TTR250 on the road (90% on and 10% off) and it's time to change to a more road biased tyre. There's loads written regarding off road tyres but far less about on road ones. From what I can make out the 'best' size seems to be 90/90 21 and 100/100 18 and maybe Pirelli Scorpions/Con...

apw99 · apw99

hi folks, I need to replace the bump-stop on my rear shock. i have the spring off, which i am re-painting and need to take off the bottom mounts in order to fit the bump-stop. Looking at old threads which are more focused on total rebuilds I see that the shock stem can be held with a vice or pipe-wrench with s...

Hustler · Hustler

Does anyone happen to know if the purple / blue colour can be removed from the wheel rims of the OE model ? How can it be done and what would it leave underneath ? Would it leave a nice clear alloy colour ? Or would it be easier to try and find a couple of secondhand wheels from a Y2K model ? Any other alternative...

locky · locky

I gave the TTR a good clean after last weeks ride, i even removed the downpipe to give it a good clean up. Then i noticed this Iv'e ordered one of the posh aluminium plugs from Brian. -- Edited by locky on Sunday 14th of June 2015 02:00:04 PM

admbnm · admbnm

good morning,has anybody fitted heidenau k60's 4.10-18 tt 60s /300-21 tyres to their bike?,they have been recommended to me but the rear size seems uncommon,thanks.martin

ywouldi · ywouldi

I picked up this well used TTR on Sunday and had a fantastic day out with the Herts TRF today in the torrential rain, great fun! The bike performed well but after running through some heavy puddles and getting a good soaking the bike would die as soon as I stopped and then be very hard to get started again, t...

apw99 · apw99

Hi folks I was using the TTR last weekend which I have recently acquired and I noticed that the speedo was reading very very optimistically. I can't find anything about calibration in the manual. Has anyone ever come by this problem and is there a fix? Thanks APW

JOHNYBOY · JOHNYBOY

just pulled my ttr apart to fit sprag clutck but i have noticed no tdc mark on the flywheel all i have is a slot in same place as woodruph keyway at 12 oclock or a h i am assuming tdc is the woodrupk key slot at 12 oclock has any one got photos of tdc for when i do my tappets many thanks johnboy

TTRfan · TTRfan

I had never heard of JIS until a few moments ago! Interesting reading. I am assuming our TTRs use JIS fasteners. Brian Cross-head style fasteners can be found on all Japanese motorcycles. Most people will associate this style of cross-head to a Phillips style bit. This is incorrect. These cross-hea...

JOHNYBOY · JOHNYBOY

HI THERE DOES ANYONE KNOW THE TORQUE SETTINGS FOR THE 8 CLAMP BOLTS FOR THE FORK YOKES & THE DISC BOLTS THAT MOUNT THE DISC TO THE HUB FRONT & REAR MANY THANKS JOHNBOY

peteBLUEttr · peteBLUEttr

Found slight movement in lower shock bearing so changed it.. Scored up Did rear wheel bearings too, the two on the sprocket side came out stuck on the spacer but they soon collapsed when I squeezed em up in a vice

TTRfan · TTRfan

I learnt this off ttrsteve when he was here on Monday. To prevent water/moisture getting into the airbox when power washing with the seat of, put a glove over the snorkel I used to stuff rags in there but this is such a better idea! The other glove fits nicely over the exhaust if you haven't got a bung for...

peteBLUEttr · peteBLUEttr

So my TTR's engine area has developed a loud squawking noise after an extended period of main road riding and the engine gets hot. When I pull the clutch in the noise disappears immediately, and immediately returns when let back out again. But if I pull over briefly and pull the clutch in thus letting th...

burton500 · burton500

My bike was blowing a lot of oil smoke out the exhaust. I put new valve stem seals in and checked the piston and rings. All seemed ok, so reassembled, but the bike is still burning a lot of oil. Compression test is 150 psi. What would be the next thing to check? The valves all looked ok, apart from the exh...

nwrider · nwrider

i think i have found it what is the fix, check the photo. it looks as there are 4 wires in a plug running maybe into the starter? and it is leaking when engine is running not while sitting though. only when pressure is on. please tell me its a cheap fix, i can do the work i think

leigh · leigh

Thought I'd post about drowning my bike a few months ago. These bikes must be tough. Dropped my bike in a massive mud hole, got the front and rear wheels in different ruts and over we went. I'm the kind of person that takes all the tools/spares on a ride and am fairly fussy with my bike maintenance. I am usu...

Markvan · Markvan

This TTR i got with a blown motor and no history with the bike. All i know it was sitting in a workshop for ten years after he smashed the piston. The fuel tank came with the petc--k removed. Tank has a strong wierd smell. Like oil/diesel / plastic. This oil looking stuff is leaking after tank was sitting in...

Rui Matos Braz · Rui Matos Braz

Hi all I'm desesperate when I was trying to take it from is place, fall down from my fingers and.... I tried everything, vacun cleaner, magnet.... It wont come off! Wath Can I do???

Rui Matos Braz · Rui Matos Braz

Hi all It's time to post something about my RAID ! I've bought it in last June , with " some "problems - engine start , does not start !! - CDI , burned !! And lots of small problems but for 400€ ... It has been a fight to make it work , with the dismont I've found some outher problems But after will b...

Markvan · Markvan

Dont know any history on this TTR , picked it up for the wheels and other items. Engine oil is full , but that could have been filled after the explosion. Barrels been honed and looks ok but im no mechanic. Any ideas what may have happend.

Ultrawill · Ultrawill

So, shortly after resolving my engine ping/knock sound by replacing the carbuerator joint, me and my brother on an identical 2000 TTR-250 went on a 3 day trail with a couple trucks called the Dusy Ershim in Northern California. Exactly half way through the trail with about 15 miles to civilization...

masterbill · masterbill

Hello, Do you have any trouble with the split link on the bikes? I was surprised to see one mine. Cheers Bill -- Edited by masterbill on Sunday 11th of October 2015 04:51:55 PM

Keith89 · Keith89

This would explain why I've had little power since I got it all sorted now.

mossproof · mossproof

Is it possible to change the valve stem seals with the head in situ (piston tdc of course)? How close is the piston/valve clearance at tdc to hold the valves in place? Has anyone tried? Cheers, Simon.

Topic		Started By	Replies	Views	Last Post
	Standard weight fork springs (Preview) Hullo all. I realise this is the reverse to the usual 'upgrade', but does anyone know what the rating of standard weight fork springs is? I've got heavier ones fitted, and as I get older and thus even slower, I need to go back to standard. I'll also be working in some rocky country next year, so plush is ver...	66T	2	797	Dec 6, 2015 by 66T
	Oko 34mm carb , fast idle carb setup help! (Preview) Hi guys. So when I brought my ttr is has the oko 34mm flat side fitted, when I brought the bike it was perfecr around 40 miles into the ride home the bike started to run away with its self and idle fast at traffic lights , I made it home none the less, I put the bike away in the back cornor of my garage and a week...	L16MHU	2	737	Dec 3, 2015 by L16MHU
	Clutch basket bolt broke (Preview) I thought i made a tool but was thinking as i tried to loosen the nut should i have tried harder and made a better tool. Well snap goes the stud. Its on a TTR motor thats being wrecked but i still dont like breaking anything. I seen the photos of other home made basket removers , but guess i was to lazy to try and...	Markvan	2	368	Dec 2, 2015 by Markvan
	Woodruff key size for flywheel? (Preview) Hi after my post yesterday I found the problem wasn't the spragg clutch it was the woodruff key was snapped is this a common problem? Does anyone know the size?? I tried buying from ttr shop but can't pay by debit card and they seem a bit pricey	L16MHU	3	496	Nov 30, 2015 by L16MHU
	Kouba Lowering Link Rubber Seal Replacement... (Preview) Does anybody know if the standard linkage seals fit into the kouba link? Seals have fallen apart and need replacing	Moo	5	768	Nov 30, 2015 by Moo
	riding bike dies and now starter clutch dosent engage (Preview) hi, had a bit of a problem with my ttr today, only the second time i have ridden it after a hour of getting out the garage as evryone i share with parked like a ahe, the guy i brought the bike from had been using it evryday so i wasnt suprised it had a flat battry after a week, not a problem i thought so u...	L16MHU	6	613	Nov 29, 2015 by L16MHU
	Road biased tyre size and recommendation? (Preview) I'm increasingly using my TTR250 on the road (90% on and 10% off) and it's time to change to a more road biased tyre. There's loads written regarding off road tyres but far less about on road ones. From what I can make out the 'best' size seems to be 90/90 21 and 100/100 18 and maybe Pirelli Scorpions/Con...	NiftyFifty	3	565	Nov 24, 2015 by peteBLUEttr
	Shock absorbor question (Preview) hi folks, I need to replace the bump-stop on my rear shock. i have the spring off, which i am re-painting and need to take off the bottom mounts in order to fit the bump-stop. Looking at old threads which are more focused on total rebuilds I see that the shock stem can be held with a vice or pipe-wrench with s...	apw99	4	475	Nov 24, 2015 by apw99
	Removing the purple from the rims question (Preview) Does anyone happen to know if the purple / blue colour can be removed from the wheel rims of the OE model ? How can it be done and what would it leave underneath ? Would it leave a nice clear alloy colour ? Or would it be easier to try and find a couple of secondhand wheels from a Y2K model ? Any other alternative...	Hustler	13	832	Nov 22, 2015 by peteBLUEttr
	It's happend to mine now. (Preview) I gave the TTR a good clean after last weeks ride, i even removed the downpipe to give it a good clean up. Then i noticed this Iv'e ordered one of the posh aluminium plugs from Brian. -- Edited by locky on Sunday 14th of June 2015 02:00:04 PM	locky	31	2115	Nov 17, 2015 by Keith89
	tyre compatibility (Preview) good morning,has anybody fitted heidenau k60's 4.10-18 tt 60s /300-21 tyres to their bike?,they have been recommended to me but the rear size seems uncommon,thanks.martin	admbnm	7	807	Nov 9, 2015 by admbnm
	Hard to start after a soaking (Preview) I picked up this well used TTR on Sunday and had a fantastic day out with the Herts TRF today in the torrential rain, great fun! The bike performed well but after running through some heavy puddles and getting a good soaking the bike would die as soon as I stopped and then be very hard to get started again, t...	ywouldi	6	543	Nov 8, 2015 by peteBLUEttr
	Faulty Speedo or very fast Bike! (Preview) Hi folks I was using the TTR last weekend which I have recently acquired and I noticed that the speedo was reading very very optimistically. I can't find anything about calibration in the manual. Has anyone ever come by this problem and is there a fix? Thanks APW	apw99	3	474	Nov 4, 2015 by apw99
	tdc (Preview) just pulled my ttr apart to fit sprag clutck but i have noticed no tdc mark on the flywheel all i have is a slot in same place as woodruph keyway at 12 oclock or a h i am assuming tdc is the woodrupk key slot at 12 oclock has any one got photos of tdc for when i do my tappets many thanks johnboy	JOHNYBOY	5	636	Nov 2, 2015 by TTRfan
	Apparently cross-head Japanese fasteners don’t actually use a Phillips style head! (Preview) I had never heard of JIS until a few moments ago! Interesting reading. I am assuming our TTRs use JIS fasteners. Brian Cross-head style fasteners can be found on all Japanese motorcycles. Most people will associate this style of cross-head to a Phillips style bit. This is incorrect. These cross-hea...	TTRfan	18	1096	Nov 2, 2015 by hanzo
	TORQUE SETTINGS (Preview) HI THERE DOES ANYONE KNOW THE TORQUE SETTINGS FOR THE 8 CLAMP BOLTS FOR THE FORK YOKES & THE DISC BOLTS THAT MOUNT THE DISC TO THE HUB FRONT & REAR MANY THANKS JOHNBOY	JOHNYBOY	5	1974	Nov 1, 2015 by JOHNYBOY
	Lower shock bearing movement (Preview) Found slight movement in lower shock bearing so changed it.. Scored up Did rear wheel bearings too, the two on the sprocket side came out stuck on the spacer but they soon collapsed when I squeezed em up in a vice	peteBLUEttr	5	1398	Oct 31, 2015 by peteBLUEttr
	Power washing tip (Preview) I learnt this off ttrsteve when he was here on Monday. To prevent water/moisture getting into the airbox when power washing with the seat of, put a glove over the snorkel I used to stuff rags in there but this is such a better idea! The other glove fits nicely over the exhaust if you haven't got a bung for...	TTRfan	7	741	Oct 30, 2015 by TTRfan
	Squawk (Preview) So my TTR's engine area has developed a loud squawking noise after an extended period of main road riding and the engine gets hot. When I pull the clutch in the noise disappears immediately, and immediately returns when let back out again. But if I pull over briefly and pull the clutch in thus letting th...	peteBLUEttr	5	750	Oct 23, 2015 by peteBLUEttr
	loads of oil smoke (Preview) My bike was blowing a lot of oil smoke out the exhaust. I put new valve stem seals in and checked the piston and rings. All seemed ok, so reassembled, but the bike is still burning a lot of oil. Compression test is 150 psi. What would be the next thing to check? The valves all looked ok, apart from the exh...	burton500	27	2596	Oct 23, 2015 by TTRfan
	another oil leak question (Preview) i think i have found it what is the fix, check the photo. it looks as there are 4 wires in a plug running maybe into the starter? and it is leaking when engine is running not while sitting though. only when pressure is on. please tell me its a cheap fix, i can do the work i think	nwrider	9	1255	Oct 22, 2015 by glummer
	Drowning my bike (Preview) Thought I'd post about drowning my bike a few months ago. These bikes must be tough. Dropped my bike in a massive mud hole, got the front and rear wheels in different ruts and over we went. I'm the kind of person that takes all the tools/spares on a ride and am fairly fussy with my bike maintenance. I am usu...	leigh	2	556	Oct 18, 2015 by leigh
	Fuel tank sat 4 ten years (Preview) This TTR i got with a blown motor and no history with the bike. All i know it was sitting in a workshop for ten years after he smashed the piston. The fuel tank came with the petc--k removed. Tank has a strong wierd smell. Like oil/diesel / plastic. This oil looking stuff is leaking after tank was sitting in...	Markvan	2	532	Oct 17, 2015 by Markvan
	Help...... Woodruff key fall inside engine!!!!! (Preview) Hi all I'm desesperate when I was trying to take it from is place, fall down from my fingers and.... I tried everything, vacun cleaner, magnet.... It wont come off! Wath Can I do???	Rui Matos Braz	4	592	Oct 17, 2015 by Rui Matos Braz
	Reborn.... (Preview) Hi all It's time to post something about my RAID ! I've bought it in last June , with " some "problems - engine start , does not start !! - CDI , burned !! And lots of small problems but for 400€ ... It has been a fight to make it work , with the dismont I've found some outher problems But after will b...	Rui Matos Braz	17	1064	Oct 17, 2015 by Rui Matos Braz
	Piston smashed into head. (Preview) Dont know any history on this TTR , picked it up for the wheels and other items. Engine oil is full , but that could have been filled after the explosion. Barrels been honed and looks ok but im no mechanic. Any ideas what may have happend.	Markvan	8	736	Oct 16, 2015 by Markvan
	No more spark - Need diagnostic help (Preview) So, shortly after resolving my engine ping/knock sound by replacing the carbuerator joint, me and my brother on an identical 2000 TTR-250 went on a 3 day trail with a couple trucks called the Dusy Ershim in Northern California. Exactly half way through the trail with about 15 miles to civilization...	Ultrawill	9	1508	Oct 15, 2015 by rallyben
	Chains. (Preview) Hello, Do you have any trouble with the split link on the bikes? I was surprised to see one mine. Cheers Bill -- Edited by masterbill on Sunday 11th of October 2015 04:51:55 PM	masterbill	12	787	Oct 15, 2015 by masterbill
	Lack of power (Preview) This would explain why I've had little power since I got it all sorted now.	Keith89	5	667	Oct 5, 2015 by Keith89
	Valve stem seal replacement with head in place? (Preview) Is it possible to change the valve stem seals with the head in situ (piston tdc of course)? How close is the piston/valve clearance at tdc to hold the valves in place? Has anyone tried? Cheers, Simon.	mossproof	3	591	Oct 4, 2015 by Keith89
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