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

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...

Wynand · Wynand

Good day everyone So I feel like my bike has reached a stage where I feel its necessary to spend some cash on it. I have a bit of spare cash lying around so here goes. When the bike is elevated the rear wheel seems to have some play when the wheel is moved up and down. No play when moved sideways. My uneducated...

TTRfan · TTRfan

Some of the older models such as the 4GY1 ran different teeth combinations to later engines. There was a 72T/20T (#4GY-15512-00-00) large idler gear which ran with a 16T/15T (part #4GY-15517-00-00) small idler gear. The large idler gear is no longer available from a Yamaha parts dealer in the UK alt...

Jak · Jak

Hi, I am usually pretty good at working out how long road tyres will last on bikes but I am still pretty new to this off road stuff. I have an Ac10 on the back of my TTR and it has about 10mm left on the centre blocks (it seems strange calling it tread). if I sort out some other issues with the bike I intend ridi...

Jak · Jak

eHelp my bike is making an ominous rattle. It sounds like the rear chain is knocking on the engine cases but it isn't because I have just put a new chain and sprockets (14/48) on. The noise seems to come mainly from the left side of the engine and originally seemed to only be when the bike was moving but n...

Gus The Snail · Gus The Snail

ITs dark out , so havent looked hard , but starter is cranking , battery has good charge , but wont fire. Is there a common fault electrically that would be causing the problem?

BM Steve · BM Steve

OK, so when the clutch is in all the way, no drag or anything, fully disengaged then slowly let it out and nothing till it hits a very narrow section of 15mm Lever is adjusted with about 5mm of play at the very end of the lever, so 75mm travel pulled fully in, clutch take-up begins at 30mm out and fully out at 4...

Seatosky · Seatosky

Hi everyone I am new to this site, I bought my ttr250 in February and rode it for about a month before doing a full strip down to it. Before the strip it was leaking creamy oil from the crankcase breather hose connected to the rocker cover. I hoped that the cleaning and replacing of everything would help ge...

TTRfan · TTRfan

An owner in Laos has asked if I know of a source of ignition pickup coils as he has two of his rental TTRs out of action at the moment because they have failed. I found this on the forum but am hoping someone can be more precise and point us in the right direction with a known part that works?Hey guys, I've been...

RodYorkttr · RodYorkttr

Evening people! Im (again) the owner of a Raid & looking for another (next film??) I am completing the final stages to film of a trip to Western Sahara...on a budget<£980.00 everything's there...love, sorrow, joy, dirt, sand .. Here's the trailer- I hope you enjoy it...please do comment &a...

honda15i · honda15i

Hi, I just got this problem permanently. See video https://youtu.be/ulAT5qzi390 This behavior was happening once per day before. It seems starter solenoid (relay) is working, battery is charged. Starter relay produces 12v beetween main terminals (see image) Seems starter it self is faulty....

Jak · Jak

Hi, since buying my TTR back at the end of December it has had a misfire. Now it is always there but not constantly, for instance I rode it from Derby to South Wales a couple of weeks ago and it was okay at a steady 65ish in the pouring rain on the motorway but then was missing firing on the back lanes. I have p...

honda15i · honda15i

Hi, I see inside of my metal tank there is rust. How do you usually clean it/ remove? I saw on youtube people are filling tank with an apple cider vinegar. Has anybody tried this on ttr metal? :) Thanks

TTRfan · TTRfan

Best and most practical tyre changing video I have watched so far - old guys rule!

Kito · Kito

Hi I'm new here but done plenty of on and off road touring by motorbike in the past and am considering getting myself a ttr250 for some green laning and some long distance off-road tours. so is seems your the guys to ask about these bikes. what would you guys class as high milage for these motors (With appr...

nelly · nelly

hi guys as the ttr is my first ever off-roader,can I ask you lot what cleaning substance/spray/liquid you use, theres lots about but ive only ever used soapy water on previous rides thanks in advance nel

Markvan · Markvan

Made it out of a excersise bike, done the front tyre yesterday working on the ground ( does my back in). Never replaced a rear before so im going to give it ago with this.

Topic		Started By	Replies	Views	Last Post
	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	403	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	396	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	742	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	422	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	950	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	464	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	400	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	581	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	500	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	359	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	1196	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	1263	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	1742	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	1644	May 2, 2016 by TTRfan
	Some general maintenance (Preview) Good day everyone So I feel like my bike has reached a stage where I feel its necessary to spend some cash on it. I have a bit of spare cash lying around so here goes. When the bike is elevated the rear wheel seems to have some play when the wheel is moved up and down. No play when moved sideways. My uneducated...	Wynand	4	631	May 2, 2016 by Wynand
	Replacing the starter "idler gears" - beware! (Preview) Some of the older models such as the 4GY1 ran different teeth combinations to later engines. There was a 72T/20T (#4GY-15512-00-00) large idler gear which ran with a 16T/15T (part #4GY-15517-00-00) small idler gear. The large idler gear is no longer available from a Yamaha parts dealer in the UK alt...	TTRfan	6	3174	Apr 29, 2016 by TTRfan
	Tyre wear (Preview) Hi, I am usually pretty good at working out how long road tyres will last on bikes but I am still pretty new to this off road stuff. I have an Ac10 on the back of my TTR and it has about 10mm left on the centre blocks (it seems strange calling it tread). if I sort out some other issues with the bike I intend ridi...	Jak	6	634	Apr 28, 2016 by BM Steve
	Ominous noise. (Preview) eHelp my bike is making an ominous rattle. It sounds like the rear chain is knocking on the engine cases but it isn't because I have just put a new chain and sprockets (14/48) on. The noise seems to come mainly from the left side of the engine and originally seemed to only be when the bike was moving but n...	Jak	7	710	Apr 27, 2016 by Jak
	Just bought another one... 12/2004 , cranks but doesnt fire (Preview) ITs dark out , so havent looked hard , but starter is cranking , battery has good charge , but wont fire. Is there a common fault electrically that would be causing the problem?	Gus The Snail	13	784	Apr 24, 2016 by TTRfan
	Clutch Take Up (Preview) OK, so when the clutch is in all the way, no drag or anything, fully disengaged then slowly let it out and nothing till it hits a very narrow section of 15mm Lever is adjusted with about 5mm of play at the very end of the lever, so 75mm travel pulled fully in, clutch take-up begins at 30mm out and fully out at 4...	BM Steve	6	628	Apr 23, 2016 by BM Steve
	White/ creamy oil running from crankcase breather hose after every bike ride (Preview) Hi everyone I am new to this site, I bought my ttr250 in February and rode it for about a month before doing a full strip down to it. Before the strip it was leaking creamy oil from the crankcase breather hose connected to the rocker cover. I hoped that the cleaning and replacing of everything would help ge...	Seatosky	9	1137	Apr 22, 2016 by comeragh
	Ignition pickup coil or sensor replacement (Preview) An owner in Laos has asked if I know of a source of ignition pickup coils as he has two of his rental TTRs out of action at the moment because they have failed. I found this on the forum but am hoping someone can be more precise and point us in the right direction with a known part that works?Hey guys, I've been...	TTRfan	1	2106	Apr 21, 2016 by ttboof
	Morocco -Western Sahara & Spain on a budget (Preview) Evening people! Im (again) the owner of a Raid & looking for another (next film??) I am completing the final stages to film of a trip to Western Sahara...on a budget<£980.00 everything's there...love, sorrow, joy, dirt, sand .. Here's the trailer- I hope you enjoy it...please do comment &a...	RodYorkttr	14	1069	Apr 21, 2016 by TTRfan
	Does not turn the starter (Preview) Hi, I just got this problem permanently. See video https://youtu.be/ulAT5qzi390 This behavior was happening once per day before. It seems starter solenoid (relay) is working, battery is charged. Starter relay produces 12v beetween main terminals (see image) Seems starter it self is faulty....	honda15i	9	736	Apr 18, 2016 by Cubber
	Mis fire,occassional cutting out. Help (Preview) Hi, since buying my TTR back at the end of December it has had a misfire. Now it is always there but not constantly, for instance I rode it from Derby to South Wales a couple of weeks ago and it was okay at a steady 65ish in the pouring rain on the motorway but then was missing firing on the back lanes. I have p...	Jak	0	509	Apr 17, 2016 by Jak
	Cleaning rust from the metal tank (white model) (Preview) Hi, I see inside of my metal tank there is rust. How do you usually clean it/ remove? I saw on youtube people are filling tank with an apple cider vinegar. Has anybody tried this on ttr metal? :) Thanks	honda15i	4	773	Apr 17, 2016 by BM Steve
	Repairing a puncture or changing a tube on the trail video (Preview) Best and most practical tyre changing video I have watched so far - old guys rule!	TTRfan	6	679	Apr 12, 2016 by leigh
	High milage (Preview) Hi I'm new here but done plenty of on and off road touring by motorbike in the past and am considering getting myself a ttr250 for some green laning and some long distance off-road tours. so is seems your the guys to ask about these bikes. what would you guys class as high milage for these motors (With appr...	Kito	6	606	Apr 8, 2016 by JOHNYBOY
	care and cleaning tips ? (Preview) hi guys as the ttr is my first ever off-roader,can I ask you lot what cleaning substance/spray/liquid you use, theres lots about but ive only ever used soapy water on previous rides thanks in advance nel	nelly	7	666	Apr 8, 2016 by nelly
	Tyre remover (Preview) Made it out of a excersise bike, done the front tyre yesterday working on the ground ( does my back in). Never replaced a rear before so im going to give it ago with this.	Markvan	6	598	Apr 6, 2016 by Markvan
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