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

Barrelman · Barrelman

Spotted a minor fuel leak today seems to be around the pilot screw. Would a worn/damaged O ring cause a fuel leak? Or is the O ring just an air seal? Thanks

LowInertia · LowInertia

Hey all, First post on the forum. I ve been reading your posts for some time now and they ve really helped me out with some issues and questions I ´ve had. I m the owner of a 97 OE for the past few months and it really does put a smile on my face everytime I ride it. Ok, I will present myself and the bike in the appr...

DucDave · DucDave

Hi Ive had my OE TTR 17 Years and its still a great little bike However Im on tank number 3 (yes rotted out at the seat junction) and they are becoming like rocking horse droppings Does anyone know if the Blue plastic tank from the later bike fits a white OE? And if so, do you need the blue ones seat as well? Che...

Firestorm809 · Firestorm809

My front brake problems seem to be never ending. I have serviced the master cylinder using the all balls kit. I have also serviced the front caliper. I'm still unable to bleed the system, i simply cannot get any pressure build up. After many tests it seems air is getting in via the piston in the master cyl...

Kev · Kev

Hi All, I am having a few problems with my new to me TTR. The bike hadn't really been used for 3 0r 4 years, although it had been started and run and MOT'd every year and was just ridden, briefly, and Mot'd when I bought it. Fresh fuel, clean air filter, new plug, test ride. Starts, idle's and picks up perfec...

Sammyboy · Sammyboy

So, small problem, I was about to remove my oil drain bolt, I felt very confident in how my socket was placed on the bolt, long story short the bolt did not turn but just rounded out. What am I supposed to do now? (P.s the socket was firmly seated on the bolt)

KevinPen7 · KevinPen7

new heidenau tyres seem to get reasonable review for 50/50 tyres, and £60 rack off amazon i’ll let you know how they go. Plus few bits off Steve&Lisa, ready for adventure 😎

SussexTony · SussexTony

I have a ttr 250 r whitey.94 oe. so many people say different amount of oil to put in, I have a oil cooler on it , and on side of case it says 1 liter and man in shop says to put 1:4 in it ???? Because of cooler ? At mo I have 1:2 and the glass eye must be abit scrachd because I cannot c nothing, ! -- Edited by Su...

PETE · PETE

Any Ideas????????????. I got my 1996 TTR Enduro end of last year. [Private sale]. No history. . I've been out on several rides around the Peak District and had a great time!!!!.. One problem. When I get on the open road and get into 5th and 6th she Dies. Drop her down a couple of gears and she picks up again...

OR3X · OR3X

Hello All! I have the rear shock out of my bike for a new upper bearing, and decided this would be a good time to check to make sure the strut is still in good working order. I took the shock to a local shop to have the spring removed since the spring compressor tool I had was simply too big. They removed the sp...

vwanjau · vwanjau

Hi Team, My Carb has been leaking fuel and just got worse. Droplets of fuel trickle from below, even when the bike is not in motion.Now I am forced to close the tap everytime I stop to minimize the leakage. I have tried to clean and remove any kind of blockage but it still leaks.Help Kind Regards Vincent

SussexTony · SussexTony

Newbie. Bike. Dies when your flat out for more than a min or so , seems. Like it’s running out. Of fuel but then starts up again and runs fine but soon as your top speed same happens again please help?

OzzyRZ · OzzyRZ

G'day all. I was wondering if anyone has tried the Webcam camshafts on their TTR. I have just completed a 325cc build and was wondering if the cams would make any difference

Flatline · Flatline

Confused is not the word😂😂😂 Having spent the last 21 years riding the same road bike and therefore the same tyre sizes, looking for tyres for my Raid is a confusing place to be The recommended sizes are: f 3.00 - 21 51p r 4.60 - 18 Fitted tyres are: f 90/90 - 21 63p r 110/...

Lol · Lol

Hi all my battery is knackered. I won’t to buy a new one but I can not see all the code on the battery MG7B is all I can see it’s a 1993 ttr250 metal tank. Or is there another battery that will fit it thank you laurence

vwanjau · vwanjau

Hi team, What would cause the clutch unit to look like it was burning up? See attached photos, I had opened it up few months ago to add a new set of clutch plates then after a while that is the look I get on the clutch plates. Please advise. Kind Regards

pjkr199 · pjkr199

Hi fellas. My Raid's rear shock is a bit weepy, will need replacing at some point. I looked around, seem to be that Raid shocks are different from Open enduro? Please correct me if I'm wrong. If they're different, how do I find the right size for Raid? When I search online, it does not come up as a separa...

Simmo · Simmo

Hi As above, if I set the clock and reset the trips, after the ignition is switched off and on again the clocks reading 1-00 & the trip shows 51 A&B . Is there a backup battery in the unit somewhere that holds the info or do I need a new unit.

Czechmick · Czechmick

I mentioned in another post that I was in the process of resurrecting a blue TTR after some years of storage. I am almost at the point of starting it but on refitting the starter noticed some marks in the larger of the two gears that sit under the round cover. I have attached a picture of the indentations in...

TTRtramp · TTRtramp

Hi All, It has been a while since I last posted but I thought I would get back on the 'horse' - power that is. I have recently had to spend a lot of time getting my old TTR running again because of old fuel and a battery that is also getting old. Normally when I know it is going to be a while before I can get back o...

Czechmick · Czechmick

Hello to you all, After a delay of some 5 years or so i have started to complete the rebuild of my blue TTR. Rolling chassis with new powder coating is all complete. I was in the process of replacing the cylinder head when I realised I'd put the cam chain blade in upside down. Off came the head but it took the...

Flatline · Flatline

When I look where the bearings will fit, there is a lip perhaps an inch in where the bore size is smaller Should the bearing be pushed in until it stops against the lip This will leave the bearing about 15mm in from the outside edge of the swingarm No pictures as I've already pushed them in so that they are f...

pjkr199 · pjkr199

Hi all. Hope you're having a good day. I'm hunting for a ttr, found one in Cornwall, the Open Enduro, but it's problematic. Talked to the guy on the phone, sounded reasonable and no bull****, he said it's hard to downshift. Shifts up well. He thought it's a clutch, replaced, but problem persists. I'...

TerryK · TerryK

Well as I have posted on a previous topic I was going to fit dual sport / adventure tyres on the TTR, will keep MT21's on the WRR for the rough tracks, going to keep the TTR for dirt /gravel roads. Had a delivery from postman Pat today, so on a 39-40c day I changed both tyres, not sure about the front but I guess...

Stupat · Stupat

Is this likely to be the rectifier unit and, if so, where and how much for a new one?

TTRfan · TTRfan

My rebuilds often advance at a snail's pace so that much of the oil I use on assembly has probably long gone by the time I get to run the engine. I belong to a few classic bike FB groups and there were a lot of experienced guys recommending Graphogen. Not cheap at £27 but its a big tube - 125g - and will probably...

TTRHead · TTRHead

What is the highest you have seen on a straight engine? I bumped into a fellow TTR rider at the weekend and he had 40k on his one. Although he told me it had 4 owners so someone may have done some engine work in it I guess...

dlee22 · dlee22

Hi all, My bike starts okay however my cams are both slightly off level when tdc (single mark). I have recently replaced the cam chain (2000 miles Max) so wasn't too worried. Having rebuilt the bike to a 350 and using a air fuel ratio gauge I'm trying to ensure it's running nice however I'm having a bit o...

Jpolonoski · Jpolonoski

I've been having some trouble with my bike bogging down and cutting out when I apply the throttle. After a few chats and looking around I decided that it would be best to clean the carb. There was some build up and so I cleaned it no bother and put it all back together and slapped it on the big. When we went...

Louis0238 · Louis0238

Hi, my Australian 2006 ttr250 has recently developed an oil leak which seems to be coming from underneath the starter motor. I have done some reading on the forum and understand that it could be a cracked generator cover case caused by the sprang clutch making a clack noise on shutdown and sending a sho...

Topic		Started By	Replies	Views	Last Post
	Carb fuel leak advice (Preview) Spotted a minor fuel leak today seems to be around the pilot screw. Would a worn/damaged O ring cause a fuel leak? Or is the O ring just an air seal? Thanks	Barrelman	0	629	Aug 9, 2020 by Barrelman
	Decomp Lever (Preview) Hey all, First post on the forum. I ve been reading your posts for some time now and they ve really helped me out with some issues and questions I ´ve had. I m the owner of a 97 OE for the past few months and it really does put a smile on my face everytime I ride it. Ok, I will present myself and the bike in the appr...	LowInertia	3	1213	Aug 8, 2020 by LowInertia
	Blue Plastic Tanks on White OE? (Preview) Hi Ive had my OE TTR 17 Years and its still a great little bike However Im on tank number 3 (yes rotted out at the seat junction) and they are becoming like rocking horse droppings Does anyone know if the Blue plastic tank from the later bike fits a white OE? And if so, do you need the blue ones seat as well? Che...	DucDave	1	609	Aug 7, 2020 by TTRfan
	More front brake issues (Preview) My front brake problems seem to be never ending. I have serviced the master cylinder using the all balls kit. I have also serviced the front caliper. I'm still unable to bleed the system, i simply cannot get any pressure build up. After many tests it seems air is getting in via the piston in the master cyl...	Firestorm809	18	2754	Aug 6, 2020 by JOHNYBOY
	Rough running puzzle (Preview) Hi All, I am having a few problems with my new to me TTR. The bike hadn't really been used for 3 0r 4 years, although it had been started and run and MOT'd every year and was just ridden, briefly, and Mot'd when I bought it. Fresh fuel, clean air filter, new plug, test ride. Starts, idle's and picks up perfec...	Kev	7	829	Aug 2, 2020 by Kev
	Small (very big) issue (Preview) So, small problem, I was about to remove my oil drain bolt, I felt very confident in how my socket was placed on the bolt, long story short the bolt did not turn but just rounded out. What am I supposed to do now? (P.s the socket was firmly seated on the bolt)	Sammyboy	8	841	Aug 2, 2020 by RichR
	new tyres (Preview) new heidenau tyres seem to get reasonable review for 50/50 tyres, and £60 rack off amazon i’ll let you know how they go. Plus few bits off Steve&Lisa, ready for adventure 😎	KevinPen7	2	765	Aug 1, 2020 by KevinPen7
	Oil change how much (Preview) I have a ttr 250 r whitey.94 oe. so many people say different amount of oil to put in, I have a oil cooler on it , and on side of case it says 1 liter and man in shop says to put 1:4 in it ???? Because of cooler ? At mo I have 1:2 and the glass eye must be abit scrachd because I cannot c nothing, ! -- Edited by Su...	SussexTony	1	862	Jul 30, 2020 by SussexTony
	Loss of Power (Preview) Any Ideas????????????. I got my 1996 TTR Enduro end of last year. [Private sale]. No history. . I've been out on several rides around the Peak District and had a great time!!!!.. One problem. When I get on the open road and get into 5th and 6th she Dies. Drop her down a couple of gears and she picks up again...	PETE	27	3078	Jul 28, 2020 by SussexTony
	Rear suspension questions ('05 US blue tank) (Preview) Hello All! I have the rear shock out of my bike for a new upper bearing, and decided this would be a good time to check to make sure the strut is still in good working order. I took the shock to a local shop to have the spring removed since the spring compressor tool I had was simply too big. They removed the sp...	OR3X	10	1449	Jul 15, 2020 by OR3X
	Carb Leaking (Preview) Hi Team, My Carb has been leaking fuel and just got worse. Droplets of fuel trickle from below, even when the bike is not in motion.Now I am forced to close the tap everytime I stop to minimize the leakage. I have tried to clean and remove any kind of blockage but it still leaks.Help Kind Regards Vincent	vwanjau	3	1468	Jul 10, 2020 by ttr steve
	Technical - fuel problems still (Preview) Newbie. Bike. Dies when your flat out for more than a min or so , seems. Like it’s running out. Of fuel but then starts up again and runs fine but soon as your top speed same happens again please help?	SussexTony	15	2025	Jul 10, 2020 by SussexTony
	Webcam camshaft for TTR250 (Preview) G'day all. I was wondering if anyone has tried the Webcam camshafts on their TTR. I have just completed a 325cc build and was wondering if the cams would make any difference	OzzyRZ	0	674	Jul 9, 2020 by OzzyRZ
	Wheel sizes and what tyres sizes can be fitted (Preview) Confused is not the word😂😂😂 Having spent the last 21 years riding the same road bike and therefore the same tyre sizes, looking for tyres for my Raid is a confusing place to be The recommended sizes are: f 3.00 - 21 51p r 4.60 - 18 Fitted tyres are: f 90/90 - 21 63p r 110/...	Flatline	15	1529	Jul 7, 2020 by mossproof
	I need a new battery (Preview) Hi all my battery is knackered. I won’t to buy a new one but I can not see all the code on the battery MG7B is all I can see it’s a 1993 ttr250 metal tank. Or is there another battery that will fit it thank you laurence	Lol	2	1649	Jul 7, 2020 by skyrider
	Engine Clutch Unit (Preview) Hi team, What would cause the clutch unit to look like it was burning up? See attached photos, I had opened it up few months ago to add a new set of clutch plates then after a while that is the look I get on the clutch plates. Please advise. Kind Regards	vwanjau	9	946	Jul 6, 2020 by ttr steve
	Raid rear shock (Preview) Hi fellas. My Raid's rear shock is a bit weepy, will need replacing at some point. I looked around, seem to be that Raid shocks are different from Open enduro? Please correct me if I'm wrong. If they're different, how do I find the right size for Raid? When I search online, it does not come up as a separa...	pjkr199	2	778	Jul 3, 2020 by pjkr199
	Digital clock/Odometer not working (Preview) Hi As above, if I set the clock and reset the trips, after the ignition is switched off and on again the clocks reading 1-00 & the trip shows 51 A&B . Is there a backup battery in the unit somewhere that holds the info or do I need a new unit.	Simmo	3	845	Jun 26, 2020 by TTRfan
	Marks on starter gears (Preview) I mentioned in another post that I was in the process of resurrecting a blue TTR after some years of storage. I am almost at the point of starting it but on refitting the starter noticed some marks in the larger of the two gears that sit under the round cover. I have attached a picture of the indentations in...	Czechmick	0	861	Jun 17, 2020 by Czechmick
	Fuel Additives (Preview) Hi All, It has been a while since I last posted but I thought I would get back on the 'horse' - power that is. I have recently had to spend a lot of time getting my old TTR running again because of old fuel and a battery that is also getting old. Normally when I know it is going to be a while before I can get back o...	TTRtramp	6	931	Jun 15, 2020 by TTRtramp
	Dowel fallen into the motor help wanted (Preview) Hello to you all, After a delay of some 5 years or so i have started to complete the rebuild of my blue TTR. Rolling chassis with new powder coating is all complete. I was in the process of replacing the cylinder head when I realised I'd put the cam chain blade in upside down. Off came the head but it took the...	Czechmick	8	996	Jun 11, 2020 by mossproof
	Replacing swingarm bearings on a Raid (Preview) When I look where the bearings will fit, there is a lip perhaps an inch in where the bore size is smaller Should the bearing be pushed in until it stops against the lip This will leave the bearing about 15mm in from the outside edge of the swingarm No pictures as I've already pushed them in so that they are f...	Flatline	3	986	Jun 9, 2020 by Flatline
	Hard to downshift (Preview) Hi all. Hope you're having a good day. I'm hunting for a ttr, found one in Cornwall, the Open Enduro, but it's problematic. Talked to the guy on the phone, sounded reasonable and no bull****, he said it's hard to downshift. Shifts up well. He thought it's a clutch, replaced, but problem persists. I'...	pjkr199	5	995	Jun 9, 2020 by pjkr199
	Dual sport tyres (Preview) Well as I have posted on a previous topic I was going to fit dual sport / adventure tyres on the TTR, will keep MT21's on the WRR for the rough tracks, going to keep the TTR for dirt /gravel roads. Had a delivery from postman Pat today, so on a 39-40c day I changed both tyres, not sure about the front but I guess...	TerryK	10	1320	Jun 5, 2020 by dlee22
	Battery discharging when bike not in use. (Preview) Is this likely to be the rectifier unit and, if so, where and how much for a new one?	Stupat	21	6838	May 30, 2020 by Maniot
	Graphogen Assembly Compound (Preview) My rebuilds often advance at a snail's pace so that much of the oil I use on assembly has probably long gone by the time I get to run the engine. I belong to a few classic bike FB groups and there were a lot of experienced guys recommending Graphogen. Not cheap at £27 but its a big tube - 125g - and will probably...	TTRfan	0	792	May 29, 2020 by TTRfan
	Highest Mileage TTR 250 (Preview) What is the highest you have seen on a straight engine? I bumped into a fellow TTR rider at the weekend and he had 40k on his one. Although he told me it had 4 owners so someone may have done some engine work in it I guess...	TTRHead	11	2921	May 27, 2020 by smcbr6
	Tdc, cam chain new(ish) and cams not level. (Preview) Hi all, My bike starts okay however my cams are both slightly off level when tdc (single mark). I have recently replaced the cam chain (2000 miles Max) so wasn't too worried. Having rebuilt the bike to a 350 and using a air fuel ratio gauge I'm trying to ensure it's running nice however I'm having a bit o...	dlee22	6	1147	May 26, 2020 by dlee22
	Carb troubles (Preview) I've been having some trouble with my bike bogging down and cutting out when I apply the throttle. After a few chats and looking around I decided that it would be best to clean the carb. There was some build up and so I cleaned it no bother and put it all back together and slapped it on the big. When we went...	Jpolonoski	6	1026	May 25, 2020 by Base
	Oil leak by starter motor (Preview) Hi, my Australian 2006 ttr250 has recently developed an oil leak which seems to be coming from underneath the starter motor. I have done some reading on the forum and understand that it could be a cracked generator cover case caused by the sprang clutch making a clack noise on shutdown and sending a sho...	Louis0238	5	1406	May 22, 2020 by mossproof
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