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

NomadaFirefox · NomadaFirefox

Hi. Lately I hear a strange sound in the engine from my TTR250, it is a model from 2005 with over 30000km. One friend (a mechanic) said how it was probable the timing chain but I am not sure. I will try later put the sound here. Mostly I hear it more when the engine starts and it is not specially hot. If the timi...

Darren · Darren

Spotted this on a TTR sales site in China..does any one know if it will fit and is it an easy fit. It says it's a Piagio oil cooler - about 40 pounds... will it fit - any ideas? Daz

robject33 · robject33

Hi all, My seat is missing all of the foam damper pads from the bottom. This means there is a lot of play in the seat when fitted and it rubs on the petrol tank (to the point that I had to get the tank welded as it had rusted through). Is there any specific type of foam / sponge that I should use to fit new dampers?...

AdamPrinsenGeerligs · AdamPrinsenGeerligs

The gear on my starter motor got shredded. i replaced the sprague clutch, and the 1st gear attached to the starter...a reduction gear...it had some wear too... i put a new starter on there. It still has issues...i am starting to shred this new starter motor. I am wondering if anyone here has dealt with t...

LowInertia · LowInertia

Hi, Apologies for the long post that follows. As the title says, my OE tilts to the right when taking hands off. It does so at all speeds and even when hands on, I still have to sit to the left side of the seat. As it's my only vehicle and I do long distances with it, it is pretty annoying and tiring having to ti...

Gabriel2fifD · Gabriel2fifD

Hi all I have a 1995 TTR250 with what looks like an exhaust from a 1994 and the bolt that holds the exhaust to the frame has gone missing because the thread is worn out, is this easy to repair by welding a nut in its place or could I tap a new thread in if there's enough meat? also can anyone identify this exhaus...

rdchair · rdchair

Hi all . Help please . 🙏 bike was running great trail riding at the weekend . Went to start to move up step in garden and it let out an awfull mechanical clunk . I tried to just turn over with kickstart and it was locked . Rocked bike and kick went down once then locked again . Stripped first cover off , all cogs i...

Gabriel2fifD · Gabriel2fifD

I need to buy a top end gasket kit for my 1995 TTR250 I have an oil leak somewhere is there any brands to stay away from because of bad quality I found one in my country and I see this brand "M.C.S" on eBay but I see other brands online, should I try to find an original Yamaha brand though probably more expensiv...

rdchair · rdchair

Hi any recommendations for someone to replace my valve guides ? Cheers . Uk and north preferred

DanH · DanH

After replacing the rebound bump stop on the rear shock and reassembling it, I noticed while pumping the rear shock up and down I hear a slight squeak and also what sounds like air rushing through a valve. Can anyone kindly tell me if this is a typical noise? The shock damping is fine and I can't discern an...

motofunknerd · motofunknerd

Knowledgable enthusiast semi professional sought. Hi all, I'm looking for a keen amateur or part time semi professional TTR 250 mechanic for work on my engine. A very knowledgeable TTR guy, or lass, that has stripped and rebuilt the engines many times and really knows their way around one. I'm not...

wobbly · wobbly

At last a problem with the TTR, near side fork oil seal badly gone, looks a fairly straight forward job, just wondering best place to get the seals and what oil to use. and anything I should be aware of. thanks.

tripodtiger · tripodtiger

I managed to pull the switch end of the clutch / ignition lockout switch out of the lever assembly. And it wont go back in. Nah, she's stuffed, mate. Is there any method of disabling the clutch lockout? Otherwise, I'll just try & wire in something to hold the pin inside the cable in. Meaning the...

Dudley · Dudley

I am currently building a 2004 TT250R engine but I am not sure what goes in the two holes pointed to in the attached picture. The holes are behind the clutch and the only picture I can find in on the TTR250 website and they look like rubber patches, the top one appears to have a smaller hole in it. My best gues...

Susan Parker · Susan Parker

I am in the process of putting the engine back together, having had the bore de glazed and new piston rings installed: the instructions indicate to fit an 'O' ring on the base of the cylinder and the new gasket below the 'O' ring. Is this correct; it doesn't feel like that will make a good seal! The 'o' ring...

MattPass · MattPass

Hello all. Just wondered if anyone had ever had a problem with a slight leak in the carb when standing and not even running. I think (not sure at all) it may be coming from the lid where you access the diaphragm (photo attached). I took the carb off and then tightened everything up. However, still leaki...

robject33 · robject33

My fuel tank has rusted through from where the seat has been rubbing on it. Previous owner must have left it bare metal like that for quite a while and there are two holes on the one side. I've attacked it with a wire brush attachment and this is the result: What would you all recommend I do to fix this? I h...

Texas · Texas

Just started a couple days ago, noted that my speed was fluttering by up to 20kph, now, wildly. I even saw it at 170kph today which is obviously impossible. Can some wise head advise, is this likely to be the magnet in process of breaking up or the sensor malfunctioning?

MichaeltT · MichaeltT

Good afternoon all i hope you are all well, i have a 2004 blue tanked ttr250 that came to me with LED indicators problem is they don't flash just stay on as a solid amber light has anyone got a link to a relay that is meant for LED winkers, I have tried the old post links but they are not active links anymore. ...

Ttboof · Ttboof

Checked the bike before a Friday ride tomorrow. And had a flat back tire . I can now say don't buy cheap tubes they perish .

dlowenst · dlowenst

After several years delay (!), I finally completed my sidelined top-end rebuild. All new parts (Wossner piston kit), all machine work sent out to a first-class machinist, 1mm over bore, new valves, cam sprockets, cam chain, etc. Set cam timing meticulously. Before reassembly, I checked the big-e...

Dan-in-a-Van · Dan-in-a-Van

Ok. My TTR has developed an annoying habit. It has cut out a dozen times at idle over the past few weeks, so I'm asking for ideas on what might be causing it. Today I took it for a 10-15 minute urban run at 30-40 mph, a 2 mile return trip up a dual carriage way at +60 mph, and finished off with start / stop, 1/4 mil...

tripodtiger · tripodtiger

After doing the starter clutch & kick starter, I re-fitted the exhaust, as you do. Got the torque wrench onto the exhaust studs and it wouldn't tighten even on about 8 lb.ft. Oh well, **** happens. Any interim repair, other than helicoil? I have a spare head that I will have serviced and fit so I c...

Susan Parker · Susan Parker

I am now the owner of PO55 OTS; and very happy with this lovely bike - apart from the mystery of the disappearing oil! There is no evidence of oil leaking, it does not smoke but at the end of every ride ( usually about 50 miles of gentle, Cornish lanes) I have to add at least 100ml of oil just to get the level vis...

robject33 · robject33

Hey all, My bike started running rough, bogging quite badly. Took it to a professional who said the rubber joint between the carb and engine neeeded replacing. Picked it up and it seemed to be running okay when I started it before leaving. Tried taking it out for a ride a couple of weeks later and it start...

Brighton Brad · Brighton Brad

Hello gang, does anyone have a paint code for the frame paint for the GREY RAID FRAME, mines the green tanked mode. Even if‘s a close match it would be greatly appreciated. tia, Brad.

MattPass · MattPass

Hi there, I see from the Gov.UK site that my 1999 TTR250 is not ULEZ (Ultra Low Emission Zone) compliant and hence will cost me £12.50 a ride the I get it going again. Just wondering if anyone (London based) has any experience of getting their bikes tested and then getting compliant some how??? Cheers,...

yamahalife · yamahalife

Ive looked through some of the older threads and I cant seem to find anything on replacing the front wheel bearings. Does anyone have a guide for that project? Also the torque specs for the axle nut and pinch bolts. Any help would be greatly appreciated. Thank y'all in advanced as always.

Ttboof · Ttboof

Hi a bit of info that may help some one I have found Yamaha online parts Australia, they're in Sydney and post parts. it's easy to look up the parts and add them to your cart purchase and have them posted. it saves me the 180km round trip to the nearest Yamaha dealer. (found it easier to find the TTR puttin...

Isaac · Isaac

Hello to anyone that can help, issue is that my speedo isn’t working I assume it’s the speed drive something with the gears need a quick fix for her to get registered.

Topic		Started By	Replies	Views	Last Post
	Strange engine sound (Preview) Hi. Lately I hear a strange sound in the engine from my TTR250, it is a model from 2005 with over 30000km. One friend (a mechanic) said how it was probable the timing chain but I am not sure. I will try later put the sound here. Mostly I hear it more when the engine starts and it is not specially hot. If the timi...	NomadaFirefox	3	1255	Aug 19, 2025 by NomadaFirefox
	Oil cooler information ( 1 2 3 4 ) (Preview) Spotted this on a TTR sales site in China..does any one know if it will fit and is it an easy fit. It says it's a Piagio oil cooler - about 40 pounds... will it fit - any ideas? Daz	Darren	175	187503	Aug 13, 2025 by mmwain
	Seat repairs (Preview) Hi all, My seat is missing all of the foam damper pads from the bottom. This means there is a lot of play in the seat when fitted and it rubs on the petrol tank (to the point that I had to get the tank welded as it had rusted through). Is there any specific type of foam / sponge that I should use to fit new dampers?...	robject33	0	1087	Aug 5, 2025 by robject33
	starter motor getting shredded (Preview) The gear on my starter motor got shredded. i replaced the sprague clutch, and the 1st gear attached to the starter...a reduction gear...it had some wear too... i put a new starter on there. It still has issues...i am starting to shred this new starter motor. I am wondering if anyone here has dealt with t...	AdamPrinsenGeerligs	6	1083	Jul 31, 2025 by ttr steve
	Bike tilting to the right when taking hands off (Preview) Hi, Apologies for the long post that follows. As the title says, my OE tilts to the right when taking hands off. It does so at all speeds and even when hands on, I still have to sit to the left side of the seat. As it's my only vehicle and I do long distances with it, it is pretty annoying and tiring having to ti...	LowInertia	3	1093	Jul 28, 2025 by Ttboof
	Exhaust bolt has no thread any more (Preview) Hi all I have a 1995 TTR250 with what looks like an exhaust from a 1994 and the bolt that holds the exhaust to the frame has gone missing because the thread is worn out, is this easy to repair by welding a nut in its place or could I tap a new thread in if there's enough meat? also can anyone identify this exhaus...	Gabriel2fifD	2	1271	Jun 8, 2025 by Gabriel2fifD
	Dreaded clunk . Plus kickstart locking up engine . (Preview) Hi all . Help please . 🙏 bike was running great trail riding at the weekend . Went to start to move up step in garden and it let out an awfull mechanical clunk . I tried to just turn over with kickstart and it was locked . Rocked bike and kick went down once then locked again . Stripped first cover off , all cogs i...	rdchair	19	1515	May 30, 2025 by rdchair
	A good brand for a top end gasket kit (Preview) I need to buy a top end gasket kit for my 1995 TTR250 I have an oil leak somewhere is there any brands to stay away from because of bad quality I found one in my country and I see this brand "M.C.S" on eBay but I see other brands online, should I try to find an original Yamaha brand though probably more expensiv...	Gabriel2fifD	0	365	May 28, 2025 by Gabriel2fifD
	Valve guides replacement specialist (Preview) Hi any recommendations for someone to replace my valve guides ? Cheers . Uk and north preferred	rdchair	2	1134	May 27, 2025 by rdchair
	Rear Shock Noise- Is this normal for a TTR? (Preview) After replacing the rebound bump stop on the rear shock and reassembling it, I noticed while pumping the rear shock up and down I hear a slight squeak and also what sounds like air rushing through a valve. Can anyone kindly tell me if this is a typical noise? The shock damping is fine and I can't discern an...	DanH	8	1251	May 25, 2025 by JOHNYBOY
	Knowledgable enthusiast semi professional sought (Preview) Knowledgable enthusiast semi professional sought. Hi all, I'm looking for a keen amateur or part time semi professional TTR 250 mechanic for work on my engine. A very knowledgeable TTR guy, or lass, that has stripped and rebuilt the engines many times and really knows their way around one. I'm not...	motofunknerd	4	1117	May 24, 2025 by motofunknerd
	Fork seals (Preview) At last a problem with the TTR, near side fork oil seal badly gone, looks a fairly straight forward job, just wondering best place to get the seals and what oil to use. and anything I should be aware of. thanks.	wobbly	8	1369	May 23, 2025 by tripodtiger
	Clutch / ignition lockout switch disabling? (Preview) I managed to pull the switch end of the clutch / ignition lockout switch out of the lever assembly. And it wont go back in. Nah, she's stuffed, mate. Is there any method of disabling the clutch lockout? Otherwise, I'll just try & wire in something to hold the pin inside the cable in. Meaning the...	tripodtiger	5	1226	May 23, 2025 by tripodtiger
	identification help please (Preview) I am currently building a 2004 TT250R engine but I am not sure what goes in the two holes pointed to in the attached picture. The holes are behind the clutch and the only picture I can find in on the TTR250 website and they look like rubber patches, the top one appears to have a smaller hole in it. My best gues...	Dudley	6	732	May 16, 2025 by tripodtiger
	Continuing saga of PO55 (Preview) I am in the process of putting the engine back together, having had the bore de glazed and new piston rings installed: the instructions indicate to fit an 'O' ring on the base of the cylinder and the new gasket below the 'O' ring. Is this correct; it doesn't feel like that will make a good seal! The 'o' ring...	Susan Parker	7	1181	May 5, 2025 by Susan Parker
	Carb slightly leaking (Preview) Hello all. Just wondered if anyone had ever had a problem with a slight leak in the carb when standing and not even running. I think (not sure at all) it may be coming from the lid where you access the diaphragm (photo attached). I took the carb off and then tightened everything up. However, still leaki...	MattPass	4	1308	Apr 20, 2025 by ttr steve
	Rusted fuel tank (Preview) My fuel tank has rusted through from where the seat has been rubbing on it. Previous owner must have left it bare metal like that for quite a while and there are two holes on the one side. I've attacked it with a wire brush attachment and this is the result: What would you all recommend I do to fix this? I h...	robject33	2	1049	Apr 10, 2025 by robject33
	Speed indication wildly fluttering RAID magnet or sensor? (Preview) Just started a couple days ago, noted that my speed was fluttering by up to 20kph, now, wildly. I even saw it at 170kph today which is obviously impossible. Can some wise head advise, is this likely to be the magnet in process of breaking up or the sensor malfunctioning?	Texas	1	970	Apr 4, 2025 by ttr steve
	LED indicator flasher relay 2004 blue tank (Preview) Good afternoon all i hope you are all well, i have a 2004 blue tanked ttr250 that came to me with LED indicators problem is they don't flash just stay on as a solid amber light has anyone got a link to a relay that is meant for LED winkers, I have tried the old post links but they are not active links anymore. ...	MichaeltT	3	1211	Apr 1, 2025 by Texas
	Flat (Preview) Checked the bike before a Friday ride tomorrow. And had a flat back tire . I can now say don't buy cheap tubes they perish .	Ttboof	5	854	Mar 13, 2025 by TTRfan
	Crankshaft Assembly Replacement (Preview) After several years delay (!), I finally completed my sidelined top-end rebuild. All new parts (Wossner piston kit), all machine work sent out to a first-class machinist, 1mm over bore, new valves, cam sprockets, cam chain, etc. Set cam timing meticulously. Before reassembly, I checked the big-e...	dlowenst	7	774	Mar 12, 2025 by tripodtiger
	Engine cutting out & no restarting :0 (Preview) Ok. My TTR has developed an annoying habit. It has cut out a dozen times at idle over the past few weeks, so I'm asking for ideas on what might be causing it. Today I took it for a 10-15 minute urban run at 30-40 mph, a 2 mile return trip up a dual carriage way at +60 mph, and finished off with start / stop, 1/4 mil...	Dan-in-a-Van	6	1107	Mar 12, 2025 by tripodtiger
	Exhaust stud repair. (Preview) After doing the starter clutch & kick starter, I re-fitted the exhaust, as you do. Got the torque wrench onto the exhaust studs and it wouldn't tighten even on about 8 lb.ft. Oh well, **** happens. Any interim repair, other than helicoil? I have a spare head that I will have serviced and fit so I c...	tripodtiger	2	711	Mar 12, 2025 by tripodtiger
	Where's all the oil going? (Preview) I am now the owner of PO55 OTS; and very happy with this lovely bike - apart from the mystery of the disappearing oil! There is no evidence of oil leaking, it does not smoke but at the end of every ride ( usually about 50 miles of gentle, Cornish lanes) I have to add at least 100ml of oil just to get the level vis...	Susan Parker	33	1130	Feb 1, 2025 by AussieChookchaser
	Not starting (Preview) Hey all, My bike started running rough, bogging quite badly. Took it to a professional who said the rubber joint between the carb and engine neeeded replacing. Picked it up and it seemed to be running okay when I started it before leaving. Tried taking it out for a ride a couple of weeks later and it start...	robject33	2	679	Dec 29, 2024 by robject33
	Raid Frame Paint Code? (Preview) Hello gang, does anyone have a paint code for the frame paint for the GREY RAID FRAME, mines the green tanked mode. Even if‘s a close match it would be greatly appreciated. tia, Brad.	Brighton Brad	7	814	Dec 21, 2024 by JOHNYBOY
	Ulez Compliant? (Preview) Hi there, I see from the Gov.UK site that my 1999 TTR250 is not ULEZ (Ultra Low Emission Zone) compliant and hence will cost me £12.50 a ride the I get it going again. Just wondering if anyone (London based) has any experience of getting their bikes tested and then getting compliant some how??? Cheers,...	MattPass	4	909	Nov 30, 2024 by wobbly
	Front Wheel Bearings Replacement (Preview) Ive looked through some of the older threads and I cant seem to find anything on replacing the front wheel bearings. Does anyone have a guide for that project? Also the torque specs for the axle nut and pinch bolts. Any help would be greatly appreciated. Thank y'all in advanced as always.	yamahalife	13	1412	Nov 25, 2024 by mossproof
	parts supplier Australia (Preview) Hi a bit of info that may help some one I have found Yamaha online parts Australia, they're in Sydney and post parts. it's easy to look up the parts and add them to your cart purchase and have them posted. it saves me the 180km round trip to the nearest Yamaha dealer. (found it easier to find the TTR puttin...	Ttboof	6	947	Nov 19, 2024 by tripodtiger
	Speedo not working (Preview) Hello to anyone that can help, issue is that my speedo isn’t working I assume it’s the speed drive something with the gears need a quick fix for her to get registered.	Isaac	3	757	Nov 8, 2024 by TTRfan
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