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

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.

TTRfan · TTRfan

My brother-in-law complained that his TTR's front wheel was acting oddly so I had a look at the rim and tyre.It was only after spinning it around a few times to check for any run out or damage to the rim that I noticed the odd tyre wear.I hope the pics are clear enough to see the difference between the tread o...

Giovanni Ginocchio · Giovanni Ginocchio

Hi guy's my name is Giovanni , I live in Australia and i just bought a 2008 TTR 250 . I am a novice however I never owned a Mortbike before therefore I am looking for some advice on the topic . I will using my TTR 250 only for road , I bought an enduro bike because I know they are like tractors 😉 , and as a simple ma...

Markvan · Markvan

Hi. Would the oil cooler brackets go inside this engine mount bracket or outside. Im planing to fit it in a few weeks. (Chance favors the prepared mind)

Woodski · Woodski

Hi all - mine are looking tatty and I have some white vinyl I could use. Best Regards

Woodski · Woodski

Hi all - the indicator switch on my 2005 TTR is sticky - does not move freely left/right but does still work. Any tips on how to resolve before I start getting the tools out ? Many thanks

apw99 · apw99

Hi all, I have done most of the maintenance tasks on my 2003 model TTR since I bought it last autumn. One thing I have not looked at yet is the cam-chain and tensioner and I was wondering if these tend to give trouble. Has anyone any advice before I go at this task? Thanks! APW

Tommy · Tommy

i was riding my ttr mid she just died like it was ch but it wasn't. The RPMS wasn't high, gas flow is good, I even put gas straight into the head and nothing happened a few minutes after I did that I tried to do it again and she back fired, and the spark plug is good

TTRVN · TTRVN

Hello guys. Lately it has been very difficult to downshift on my Raid. Upshifting is easy and smooth. However when i try to down shift, the lever just sticks there, and i have to step very hard on it to change the gear. This only happens when the engine is running. At 1st gear, even when I pull the clutch all...

JOHNYBOY · JOHNYBOY

can anyone point me in the right direction for headlight bulbs whats the best halogen 35w/35w or led cree has anyone bought & used these many thanks chaps

Jak · Jak

Hi, I noticed from reading other posts that some people have fitted CO2s on their TTRs. I just wanted to check what sizes people fitted. I has some on my Serow and they were excellent but when I fitted the back one I had to change the sprocket size cos their was so little clearance. Thanks

TTRVN · TTRVN

Hello guys. A few days ago I changed the piston rings. When I put everything back together, the bike ran fine - the mechanical parts at least. However, the odometer refuses to turn on, and the left/right signals do not work. N indicator still work, as well as the head light. When I signal left/right, the...

Topic		Started By	Replies	Views	Last Post
	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	1458	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	1977	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	1876	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	694	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	3487	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	702	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	811	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	863	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	697	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	1286	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	2560	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	1180	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	813	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	564	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	834	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	751	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	679	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	738	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	659	Apr 6, 2016 by Markvan
	Weird tyre wear! (Preview) My brother-in-law complained that his TTR's front wheel was acting oddly so I had a look at the rim and tyre.It was only after spinning it around a few times to check for any run out or damage to the rim that I noticed the odd tyre wear.I hope the pics are clear enough to see the difference between the tread o...	TTRfan	11	1348	Apr 2, 2016 by peteBLUEttr
	How many Km before service (Preview) Hi guy's my name is Giovanni , I live in Australia and i just bought a 2008 TTR 250 . I am a novice however I never owned a Mortbike before therefore I am looking for some advice on the topic . I will using my TTR 250 only for road , I bought an enduro bike because I know they are like tractors 😉 , and as a simple ma...	Giovanni Ginocchio	5	1193	Apr 1, 2016 by Giovanni Ginocchio
	Oil cooler mount position (Preview) Hi. Would the oil cooler brackets go inside this engine mount bracket or outside. Im planing to fit it in a few weeks. (Chance favors the prepared mind)	Markvan	2	743	Mar 30, 2016 by Markvan
	Anyone have a template for the side panel stickers for a 2005 TTR ? (Preview) Hi all - mine are looking tatty and I have some white vinyl I could use. Best Regards	Woodski	3	842	Mar 28, 2016 by TTRfan
	Sticky indicator switch (Preview) Hi all - the indicator switch on my 2005 TTR is sticky - does not move freely left/right but does still work. Any tips on how to resolve before I start getting the tools out ? Many thanks	Woodski	1	749	Mar 28, 2016 by peteBLUEttr
	Timing Chain & Tensioner (Preview) Hi all, I have done most of the maintenance tasks on my 2003 model TTR since I bought it last autumn. One thing I have not looked at yet is the cam-chain and tensioner and I was wondering if these tend to give trouble. Has anyone any advice before I go at this task? Thanks! APW	apw99	2	1318	Mar 27, 2016 by apw99
	2000 Yamaha TTR-250 (Preview) i was riding my ttr mid she just died like it was ch but it wasn't. The RPMS wasn't high, gas flow is good, I even put gas straight into the head and nothing happened a few minutes after I did that I tried to do it again and she back fired, and the spark plug is good	Tommy	1	528	Mar 25, 2016 by TTRfan
	Easy to up shift, hard to downshift while engine is running (Preview) Hello guys. Lately it has been very difficult to downshift on my Raid. Upshifting is easy and smooth. However when i try to down shift, the lever just sticks there, and i have to step very hard on it to change the gear. This only happens when the engine is running. At 1st gear, even when I pull the clutch all...	TTRVN	1	821	Mar 16, 2016 by TTRfan
	headlight bulbs (Preview) can anyone point me in the right direction for headlight bulbs whats the best halogen 35w/35w or led cree has anyone bought & used these many thanks chaps	JOHNYBOY	5	1725	Mar 13, 2016 by mossproof
	What size Mitas CO2 (Preview) Hi, I noticed from reading other posts that some people have fitted CO2s on their TTRs. I just wanted to check what sizes people fitted. I has some on my Serow and they were excellent but when I fitted the back one I had to change the sprocket size cos their was so little clearance. Thanks	Jak	1	805	Mar 13, 2016 by TTRfan
	Signals & odometer not working (Preview) Hello guys. A few days ago I changed the piston rings. When I put everything back together, the bike ran fine - the mechanical parts at least. However, the odometer refuses to turn on, and the left/right signals do not work. N indicator still work, as well as the head light. When I signal left/right, the...	TTRVN	2	648	Mar 13, 2016 by TTRVN
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