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

Sprok · Sprok

When lugging at low RPM I'm getting a weird backfire and motor stall that sounds like it's coming out of the header. Is this normal or maybe timing chain or something? The carb is freshly rebuilt and otherwise runs great when not idling. Stock everything (US 1999 model). Unknown time on the motor. It w...

il_maniaco · il_maniaco

Hi there, anybody knows the number of part of the cylinder gasket, and the cylinder head gasket in the Open Enduro models? is the same that the y2k models? I have an Open Enduro TTr, but I don't know the year, it doesn't have the VIN number, and the chassis is 4GY-085589, maybe '97- '98 or '99, i´m not shu...

JOHNYBOY · JOHNYBOY

just noticed shocker & bottom of engine wet it is black eng oil the bottom of the round breather is wet at the pipe that faces downhill but it is flattened at the end took off air box cover it is dry inside bike runs fine starts ok no smoke out of exhaust even on over run so no guide or stem seal problems t...

dj9ten · dj9ten

Hello all ....I'm new to the group ....I've owned a 99 ttr250 for about 2 weeeks now ....I bought it non running with no wiring harness basically (original one was rigged up some crazy way) .....so I grabbed my multi meter and downloadded manual ....I checked every thing and ended up replacing the igni...

dj9ten · dj9ten

I have a slight oil leak when trying to get my Ttr to start.....it's leaking from the metal piping that's connects the top end to bottom end .....the bolt it's right below the exhaust pipe on the right side just above the oil filter housing I believe ....any ideas on how to stop it from leaking ? Should I ta...

aabob · aabob

Hi, I have a 1997 250 Raid and over the last 2-300 mile the gear change from 1st to neutral has become very stiff and am now at the point where it just wont go at all unless the bike is off, even pulling away and going for 2nd is becoming stiff? Has anyone had this issue or knows what the problem might be? and an...

TTR250RIDER · TTR250RIDER

I have posted before about my ttr not working after about half throttle as it ran pretty good once I got it and cleaned it up and went through the carb it would go all the way now just recently will not. I thought it was running to lean so I had a custom sigma 6 jet kit built for the make model year and elevatio...

jttt · jttt

Hi, I am new to the forum and would like to know if anyone has an answer to a problem that started recently on my 1994 Yamaha TT 250 Raid. When I turn on the ignition the dash lights sometimes don't come on and allow me to start the engine. If I leave it for a while with the key in the on position suddenly they com...

Coast rider · Coast rider

Hi folks I'm having trouble with a snatchy throttle response off the bottom it's really difficult to control without slipping the clutch is this a known problem? or may have a carb problem if it's a known problem is there a cure or maybe a work around?

heffh084 · heffh084

Hi all, So I'm heading off to Mongolia in 10 days and my bike starts drinking oil, 1.4L in 400 miles! With help from a spectator rode up and down the road and deem that oil smoke is constant, not just after coasting with throttle closed, so i was pretty sure its rings not valve seals. Off comes the head and I...

Jimbo125 · Jimbo125

http://www.ebay.com.au/itm/Wiseco-Piston-Ring-Set-73mm-Standard-Bore-for-Yamaha-TTR250-1999-2006-/13...

TTRfan · TTRfan

I have had a bad morning in that everything I want to work on is broken or damaged I needed to renovate a front brake master cylinder and I guessed from looking at the cap screws that I wasn't going to get them out without major surgery and so it proved! So I drilled off the heads and removed the cap leaving a...

Steveo · Steveo

So i have just got a TTR white with purple wheels model off my neighbour. It's been sitting in his garage ages. basically he put a new cam chain in it the bike is not the best condition. i got the bike off him in a bits. the cam chain is new but bike has no camshafts he gave me those to fit On which I did. Basically...

matador · matador

any tips on removing brake disc screws? before I start and do some damage. Thanks in advance

JOHNYBOY · JOHNYBOY

anyone know the numbers for wheel bearings & oil seals for my 1996 oe such as 6004 2 rs numbers please

JOHNYBOY · JOHNYBOY

stripped link off bike tonight to fit lowering link but when i measured against origional one new link was longer i was confused till i sat down and thought about it anyway just perfect can touch floor better now johnboy

TTRHead · TTRHead

Hello everyone. I have a mate who is not on the forum. but he recently got a TTR. It had oil coming out the cylinder head base gaskwet. not a lot but you could see it coming out. weeping id say. Anyway I checked the engine breather (top of engine) it was ok. The crank breather is plugged on his one. I then for s...

ttboof · ttboof

I had to replace my shock flap again Ive been cutting new pieces out of of our office floor protector thingo my latest attempt has a slight improvement that seems to be working I've added a bit extra on the right hand side keeping the right hand side of the swing arm pivot a bit cleaner .may not be much beni...

BM Steve · BM Steve

Hi All, title says it all, front brake pulses a bit to noticeably when braking so need a new disc but my question is what brand to buy ?? anyone with any good reports ?? Ideally available in Australia would be best Cheers Steve

TTRfan · TTRfan

I was tidying up my box of clutch parts and came across a complete set of friction and metal plates that are quite a bit smaller in diameter than all the others I have I haven't broken an engine from anything other than TTRs in the last ten years or so ago but these look quite "fresh"! I am confusticated as t...

nwrider · nwrider

i went to do a little spring cleaning and took of the front sprocket guard and the nut that holds the 14th sprocket is loose. it wont tighten down it has the pryable nut lock on it so it wont come off, but it seems that the bolt holding the gear on is stripped? what should i do next?

Markvan · Markvan

Ive got the callipar off the bike with the bleeder bolt loose and the brake line fitting off. Still cant get the pistons in this little bit extra i need for the new pads to go over the disc. Search some youtube and someone said after market pads can have more meat on the pads. Will the pistons go in further as...

TTRfan · TTRfan

I haven't been having a lot of success with easy outs recently so I took great delight in successfully removing a stuck caliper pin this afternoon - little things eh? Shame the pins seem to be made of cream cheese

TTR250RIDER · TTR250RIDER

Hey everyone I am posting in need of help with my TTR250. I recently got a TTR 250 about late summer of 2015 it is a 1999 bought brand new by the previous owner (my grandfather) in 2003. He put about 370 Kilometres on the bike and it sat in a shed since about 2006. I bought it off him and cleaned the fuel system a...

Moo · Moo

Had an odd problem today.. Rode out to meet up with some guys to go down some Greenlanes. Bike started on the button as usual, no issues. Met up with the others and one for the guys had broken down, couldn't fix it so awaited recovery. We were going to carry on.... Turn the ignition on, and nothing happene...

TTRfan · TTRfan

The photo above shows what can happen on the manufacturing join.A customer recently had a successful repair to a cracked rim and kindly passed on contact details for the guy who did it. Might help someone.The Calne based welder’s name is Liam. His number is 07908 590882.Brian

Moo · Moo

Hey guys, When I bought my Raid, I also got given a set of what I believe are the open endure front forks. They have the little air nipple at the top. My question is, are their any differences between the two apart from this air nipple and which set are better? Is it worth me swapping over the OE ones?

Markvan · Markvan

In the process of fitting an oil cooler i got from Brian i noticed this scrapping mark .Posted on the forum a few weeks back about a noise i could here at times. This maybe the problem, i have not had the clutch plates off as yet, but that large cog behind the clutch plates wobbles by hand. These scrapes on t...

TTRVN · TTRVN

So recently my Raid developed these problems. I guess it is time for valve clearance adjustment/ shim replacement? - Lots of blue smoke when cold starting, hard to start after sitting for 10- 12 hours. My guess is the oil leaking into the piston during the night. - Loud clicking noise for 2-3 minutes af...

NeilB · NeilB

My 2004 Blue TTR250 has sat for a while not being used. Wouldn't start at all, but turned over fine, so I stripped & cleaned the carb. Turned out the float valve was sticking closed, not letting any fuel in. All cleaned up with carb cleaner, then I put it all back together & it started reluctantly...

Topic		Started By	Replies	Views	Last Post
	Need help diagnosing backfire at the header that stalls the motor (Preview) When lugging at low RPM I'm getting a weird backfire and motor stall that sounds like it's coming out of the header. Is this normal or maybe timing chain or something? The carb is freshly rebuilt and otherwise runs great when not idling. Stock everything (US 1999 model). Unknown time on the motor. It w...	Sprok	9	1177	Jul 18, 2016 by TTRfan
	Gasket number of part? (Preview) Hi there, anybody knows the number of part of the cylinder gasket, and the cylinder head gasket in the Open Enduro models? is the same that the y2k models? I have an Open Enduro TTr, but I don't know the year, it doesn't have the VIN number, and the chassis is 4GY-085589, maybe '97- '98 or '99, i´m not shu...	il_maniaco	3	680	Jul 18, 2016 by TTRfan
	oil leak (Preview) just noticed shocker & bottom of engine wet it is black eng oil the bottom of the round breather is wet at the pipe that faces downhill but it is flattened at the end took off air box cover it is dry inside bike runs fine starts ok no smoke out of exhaust even on over run so no guide or stem seal problems t...	JOHNYBOY	3	869	Jul 17, 2016 by TTRfan
	Main Switch Problems ....please help !!!!! (Preview) Hello all ....I'm new to the group ....I've owned a 99 ttr250 for about 2 weeeks now ....I bought it non running with no wiring harness basically (original one was rigged up some crazy way) .....so I grabbed my multi meter and downloadded manual ....I checked every thing and ended up replacing the igni...	dj9ten	8	1062	Jul 13, 2016 by TTRfan
	Stripped hole leaking oil (Preview) I have a slight oil leak when trying to get my Ttr to start.....it's leaking from the metal piping that's connects the top end to bottom end .....the bolt it's right below the exhaust pipe on the right side just above the oil filter housing I believe ....any ideas on how to stop it from leaking ? Should I ta...	dj9ten	3	612	Jul 12, 2016 by JOHNYBOY
	Stiff Gear Change (Preview) Hi, I have a 1997 250 Raid and over the last 2-300 mile the gear change from 1st to neutral has become very stiff and am now at the point where it just wont go at all unless the bike is off, even pulling away and going for 2nd is becoming stiff? Has anyone had this issue or knows what the problem might be? and an...	aabob	3	663	Jul 12, 2016 by TTRfan
	TTR 250 Not Igniting? Need Help!!! (Preview) I have posted before about my ttr not working after about half throttle as it ran pretty good once I got it and cleaned it up and went through the carb it would go all the way now just recently will not. I thought it was running to lean so I had a custom sigma 6 jet kit built for the make model year and elevatio...	TTR250RIDER	14	797	Jul 11, 2016 by TTRfan
	engine cut out problem (Preview) Hi, I am new to the forum and would like to know if anyone has an answer to a problem that started recently on my 1994 Yamaha TT 250 Raid. When I turn on the ignition the dash lights sometimes don't come on and allow me to start the engine. If I leave it for a while with the key in the on position suddenly they com...	jttt	4	773	Jul 8, 2016 by ttboof
	Snatchy throttle (Preview) Hi folks I'm having trouble with a snatchy throttle response off the bottom it's really difficult to control without slipping the clutch is this a known problem? or may have a carb problem if it's a known problem is there a cure or maybe a work around?	Coast rider	0	708	Jul 8, 2016 by Coast rider
	URGENT HELP PLEASE - OIL LEAK DIAGNOSIS (Preview) Hi all, So I'm heading off to Mongolia in 10 days and my bike starts drinking oil, 1.4L in 400 miles! With help from a spectator rode up and down the road and deem that oil smoke is constant, not just after coasting with throttle closed, so i was pretty sure its rings not valve seals. Off comes the head and I...	heffh084	10	953	Jul 1, 2016 by TTRfan
	Piston ring replacement (Preview) http://www.ebay.com.au/itm/Wiseco-Piston-Ring-Set-73mm-Standard-Bore-for-Yamaha-TTR250-1999-2006-/13...	Jimbo125	9	1689	Jun 28, 2016 by Jimbo125
	Removing a broken stud (Preview) I have had a bad morning in that everything I want to work on is broken or damaged I needed to renovate a front brake master cylinder and I guessed from looking at the cap screws that I wasn't going to get them out without major surgery and so it proved! So I drilled off the heads and removed the cap leaving a...	TTRfan	3	720	Jun 27, 2016 by ttr steve
	Ttr250 help! (Preview) So i have just got a TTR white with purple wheels model off my neighbour. It's been sitting in his garage ages. basically he put a new cam chain in it the bike is not the best condition. i got the bike off him in a bits. the cam chain is new but bike has no camshafts he gave me those to fit On which I did. Basically...	Steveo	22	1057	Jun 26, 2016 by ttr steve
	fitting a new brake disc ? (Preview) any tips on removing brake disc screws? before I start and do some damage. Thanks in advance	matador	9	923	Jun 25, 2016 by Moo
	rear wheel bearings (Preview) anyone know the numbers for wheel bearings & oil seals for my 1996 oe such as 6004 2 rs numbers please	JOHNYBOY	3	603	Jun 21, 2016 by JOHNYBOY
	lowering link (Preview) stripped link off bike tonight to fit lowering link but when i measured against origional one new link was longer i was confused till i sat down and thought about it anyway just perfect can touch floor better now johnboy	JOHNYBOY	0	607	Jun 20, 2016 by JOHNYBOY
	Leak from cylinder gaket (Preview) Hello everyone. I have a mate who is not on the forum. but he recently got a TTR. It had oil coming out the cylinder head base gaskwet. not a lot but you could see it coming out. weeping id say. Anyway I checked the engine breather (top of engine) it was ok. The crank breather is plugged on his one. I then for s...	TTRHead	1	548	Jun 18, 2016 by peteBLUEttr
	Slight mod to shock flap (Preview) I had to replace my shock flap again Ive been cutting new pieces out of of our office floor protector thingo my latest attempt has a slight improvement that seems to be working I've added a bit extra on the right hand side keeping the right hand side of the swing arm pivot a bit cleaner .may not be much beni...	ttboof	0	502	Jun 17, 2016 by ttboof
	Warped Front Disc (Preview) Hi All, title says it all, front brake pulses a bit to noticeably when braking so need a new disc but my question is what brand to buy ?? anyone with any good reports ?? Ideally available in Australia would be best Cheers Steve	BM Steve	10	873	Jun 14, 2016 by pricey
	What bike are these clutch plates from? (Preview) I was tidying up my box of clutch parts and came across a complete set of friction and metal plates that are quite a bit smaller in diameter than all the others I have I haven't broken an engine from anything other than TTRs in the last ten years or so ago but these look quite "fresh"! I am confusticated as t...	TTRfan	1	569	Jun 13, 2016 by Sparky
	front sprocket Loose? (Preview) i went to do a little spring cleaning and took of the front sprocket guard and the nut that holds the 14th sprocket is loose. it wont tighten down it has the pryable nut lock on it so it wont come off, but it seems that the bolt holding the gear on is stripped? what should i do next?	nwrider	6	1125	Jun 3, 2016 by nwrider
	Brake pistons wont go all the way in. (Preview) Ive got the callipar off the bike with the bleeder bolt loose and the brake line fitting off. Still cant get the pistons in this little bit extra i need for the new pads to go over the disc. Search some youtube and someone said after market pads can have more meat on the pads. Will the pistons go in further as...	Markvan	4	599	May 28, 2016 by Markvan
	Wahoo - a successful "easy out"! (Preview) I haven't been having a lot of success with easy outs recently so I took great delight in successfully removing a stuck caliper pin this afternoon - little things eh? Shame the pins seem to be made of cream cheese	TTRfan	1	517	May 27, 2016 by ttboof
	Carb Problems on 1999 TTR250 Like New (Preview) Hey everyone I am posting in need of help with my TTR250. I recently got a TTR 250 about late summer of 2015 it is a 1999 bought brand new by the previous owner (my grandfather) in 2003. He put about 370 Kilometres on the bike and it sat in a shed since about 2006. I bought it off him and cleaned the fuel system a...	TTR250RIDER	3	731	May 26, 2016 by peteBLUEttr
	Electrical Problem - Had the magic smoke escaped? (Preview) Had an odd problem today.. Rode out to meet up with some guys to go down some Greenlanes. Bike started on the button as usual, no issues. Met up with the others and one for the guys had broken down, couldn't fix it so awaited recovery. We were going to carry on.... Turn the ignition on, and nothing happene...	Moo	2	684	May 22, 2016 by TTRfan
	Repairing a cracked wheel rim (Preview) The photo above shows what can happen on the manufacturing join.A customer recently had a successful repair to a cracked rim and kindly passed on contact details for the guy who did it. Might help someone.The Calne based welder’s name is Liam. His number is 07908 590882.Brian	TTRfan	0	480	May 19, 2016 by TTRfan
	Front Fork Differences (Preview) Hey guys, When I bought my Raid, I also got given a set of what I believe are the open endure front forks. They have the little air nipple at the top. My question is, are their any differences between the two apart from this air nipple and which set are better? Is it worth me swapping over the OE ones?	Moo	4	1598	May 14, 2016 by ttr steve
	Clutch basket loose? /// scrape marks (Preview) In the process of fitting an oil cooler i got from Brian i noticed this scrapping mark .Posted on the forum a few weeks back about a noise i could here at times. This maybe the problem, i have not had the clutch plates off as yet, but that large cog behind the clutch plates wobbles by hand. These scrapes on t...	Markvan	10	1626	May 13, 2016 by Markvan
	Time for valve adjustment? (Preview) So recently my Raid developed these problems. I guess it is time for valve clearance adjustment/ shim replacement? - Lots of blue smoke when cold starting, hard to start after sitting for 10- 12 hours. My guess is the oil leaking into the piston during the night. - Loud clicking noise for 2-3 minutes af...	TTRVN	7	2217	May 13, 2016 by leigh
	Starter motor spinning, but not engaging to engine (Preview) My 2004 Blue TTR250 has sat for a while not being used. Wouldn't start at all, but turned over fine, so I stripped & cleaned the carb. Turned out the float valve was sticking closed, not letting any fuel in. All cleaned up with carb cleaner, then I put it all back together & it started reluctantly...	NeilB	5	2076	May 2, 2016 by TTRfan
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