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

mypobox · mypobox

My TTR oil plug was a NIGHTMARE to get out. When the dust all settled it was ruined. I hate the soft metal it was made from so I bought a plug at my auto store. It was really nice, solid steel and 17mm BUT it was about a 1/4inch longer. I was concerned about the extra length (thats what she said) hitting somethi...

WillsTTR · WillsTTR

G'day All, my ttr has developed another oil leak. I fixed the usual one on the head with a plug from Brian. This is messy and leaves a spot every time I park it

sena · sena

Hello everyone here. The spare parts I ordered should arrive by Tuesday. I was re-reading the service manual and come across LUBRICATION question during motor rebuild: On some points it is advised to use "Molybdenum Disulfide Oil" , on others "Lithium Soap grease". Some...

Oldduc · Oldduc

No parts available where I live, no any usable mail service. I am going to be in the USA for a couple of weeks in Nov and thought I'd order some parts online and have the mailed to my friends in Virginia. So a question to all the US TTR riders,can you suggest an online retailer I could order from. I need clut...

TTRHead · TTRHead

Hello all i still have the ugly big read end on my TTR and would like to know if anyone has an idea how I can make it look better?

RodYorkttr · RodYorkttr

I thought you might like to see a recent trip I undertook to Europe and the problems we faced.(Lots of repairs!!) There are 09 episodes in total...all with an alternative sense of humour- as I complete the other episodes-.(1/9 & 2/9 out now) they will be posted up. The vids are best watched with cop...

TTRfan · TTRfan

See here Anyone tried one on their TTR yet? Brian

dern · dern

Can anyone help me with my thought process please... I've taken the head/barrel off and refitted to cure an oil leak from the bottom of the barrel at the front. Now it's all back together it runs as rough under load as you like. Idle is fine, steady throttle is ok but not brilliant but acceleration is jerk...

kgoose89 · kgoose89

Ordered a new idle set screw from Yamaha. Lo and Behold, it is on national backorder, mine broke as I was attempting to adjust as this bike has sat in the elements to my suspicion, for quite some time. I'm going to pull the carb and drill out the original. Does anyone happen to know what pitch and thread si...

kgoose89 · kgoose89

Ok, so I finally got my bike running. Upon the throttle sticking after running it a few times I decided to inspect it further. I pulled the carburetor and noticed a super sticky brown gunk on the slide and outlet portion of the carb. I cleaned the emulsifier and the carb, it seems like it is beginning to st...

hanzo · hanzo

yesterday my neutral light went out thinking it was the bulb i proceeded to change it.Unfortunately the bulb holder disintigrated , leaving the wires bare with the copper fittings attached .there is power to the brown wire. The bike will now not start on the starter unless the clutch is pulled in and t...

TDVT · TDVT

Even though we have a bit of nice weather ahead, I am thinking about winter maintenance for the TTR which may include the top-end. The bike is now 10 years old, runs OK but I really don't know much about it's maintenance prior to my getting it 3 years ago. Seems like a valve job, timing chain, etc. certainl...

matador · matador

Years ago I before 0-ring chains I used to remove the chain wash it in paraffin and cook it up in 'linklife', hang up the warm chain over the tin as most used to run back, worked well. For the last few years I've used Chainsaw oil before each trip of say 100miles, often over oiling to let the surplus +dirt ru...

hertsrider · hertsrider

Hi all, returned from holiday and the bike wont start, battery has power as everything works on it but the thing wont even turn. so, bikes in neutral, press the button and nothing happens....just the neutral light dims And brightens again when I leave the start button. must be an electrical fault some...

nwrider · nwrider

Went riding saturday bike ran great as always. Get up the next day, its 40 f outside, tried to start, only the starter turned . choked it and the same. So now i am late for work. Drive car. Get home pull the spark plug and no spark. Checked starter switch, took apart and cleaned. Unpluged most connection...

zoid · zoid

Took her apart tonight and found my problem some how rocks ended up inside of it...? That mark on the sleeve is pretty deep.. What should I do?

Matt G · Matt G

Hi, If your like me and riding the bike in the high rev range you might be looking for a tacho. This is the tiny tach and I have found it very good. It is American made and is also an hour meter. Regards, Matt

kgoose89 · kgoose89

Is there any way around paying then dollars a piece for the specialized fasteners totalling 30 dollars to mount the air cleaner cover?

Markvan · Markvan

Picked up a front and rear wheel to keep knobbys and a 50 tooth sprocket on them for bush rides. They are the purple rims and they will be going on a blue model. The front spindle has this bolt coming out of its center. I havnt seen any photos of this bolt. Im going to use my blue model spindles On the purple whe...

ttboof · ttboof

Just pulled my ign switch apart . Cleaned up the contacts .turned the center bridge 180degrees put all back together and all good . All done in about 20 mins

zoid · zoid

So a few days after if filled by bike with water (got it out now running) she started ticking. The cam chain doesnt have much play and is tight. and it starts right up so I dont think its the valves. But what do I know.. Just so many problems after she took in water

TTRfan · TTRfan

I just happen to have a new Hel hose in my pile of stuff "to do something with" so thought it might be interesting to compare it with the Vehill front hose. The next pic compares the fittings at the reservoir end: The Venhill hose has a plastic sleeve over the hose which adds stiffness where t...

zoid · zoid

hey! I have a 2001 ttr250. bought it from a guy for 450 bucks with the title! bad thing was it smoked and he said it would stop once it wormed up never stopped... So i replaced the valve seal along with rings and honed the cylinder. Ran great after that no smoking at all. Then i went to a atv part and layed it ove...

matador · matador

Since I bought my TTR a couple of years ago it's been a bit spluttery cold and less pickup against my son's TTR, I have done the normal stuff x3 times or more. Then looking through the parts list Brian mentioned about pilot jets being difficult to clean, so I ordered up a couple of replacement jets a bit lar...

Fladdem · Fladdem

Hi everyone, another problem again. After my spirited riding at the MX track last month, the bike doesn't feel the same. At about half throttle, she develops a splutter which leads me to think about fuelling issues again.

But I also noticed that the compression seems quite low, I can near e...

pug · pug

Metal Spinning this very tired rear hub has had wheel bearing failure on the two bearing side and was a right nob to get running true in the lathe had to true the disk side before we could even cut the sprocket side. bad metal taken out new steal ring fitted an locked in to carry the two wheel bearings....

TTRfan · TTRfan

I had a query from a customer this morning who had bought a rear caliper slide pin and rubber repair kit - all genuine Yamaha parts. The new pin (part # 3SP-25926-51) has an extra shoulder - see pic below: We have sold quite a few of these kits (see here) and not had a query before. I have also fitted a few and...

TTRfan · TTRfan

kgoose89 wrote: Ok I'm new here sorry if I'm not in the correct area. First off, I purchased a 2000 model ttr250 for 300 dollars. Cleaned the valves, tore everything down. Everything looks fine. I put everything back together, set timing etc. I went to start it yesterday, I've got spark but not sure if t...

MarcusAurelius · MarcusAurelius

Going off the previous guys post about the oil leak seen here. I have ordered the replacement cap but the retaining bolt ive got it also leaking, I think its stripped. It wont tighten down at all. Does anyone know what part number or what kind of screw this is? Mine looks slightly different then the one pi...

TTRfan · TTRfan

I was cleaning some axles and snail cams this morning and came across two snail cams different to all the others. These have raised corners as shown in the pic above. All my others are dead flat. It may be a coincidence but I have just one Raid axle (shorter than the OE ones) so am guessing they go together...

Topic		Started By	Replies	Views	Last Post
	Oil plug replacement (Preview) My TTR oil plug was a NIGHTMARE to get out. When the dust all settled it was ruined. I hate the soft metal it was made from so I bought a plug at my auto store. It was really nice, solid steel and 17mm BUT it was about a 1/4inch longer. I was concerned about the extra length (thats what she said) hitting somethi...	mypobox	2	363	Oct 15, 2014 by mypobox
	OIL LEAK :-( (Preview) G'day All, my ttr has developed another oil leak. I fixed the usual one on the head with a plug from Brian. This is messy and leaves a spot every time I park it	WillsTTR	10	2620	Oct 12, 2014 by WillsTTR
	motor rebuild: lubricants question ? (Preview) Hello everyone here. The spare parts I ordered should arrive by Tuesday. I was re-reading the service manual and come across LUBRICATION question during motor rebuild: On some points it is advised to use "Molybdenum Disulfide Oil" , on others "Lithium Soap grease". Some...	sena	6	1180	Oct 10, 2014 by sena
	Parts suppliers in the USA (Preview) No parts available where I live, no any usable mail service. I am going to be in the USA for a couple of weeks in Nov and thought I'd order some parts online and have the mailed to my friends in Virginia. So a question to all the US TTR riders,can you suggest an online retailer I could order from. I need clut...	Oldduc	5	470	Oct 10, 2014 by Oldduc
	Tail tidy (Preview) Hello all i still have the ugly big read end on my TTR and would like to know if anyone has an idea how I can make it look better?	TTRHead	6	929	Oct 9, 2014 by Cubber
	Bike trip through Europe > Turkey & back under £900? (Preview) I thought you might like to see a recent trip I undertook to Europe and the problems we faced.(Lots of repairs!!) There are 09 episodes in total...all with an alternative sense of humour- as I complete the other episodes-.(1/9 & 2/9 out now) they will be posted up. The vids are best watched with cop...	RodYorkttr	25	1661	Oct 8, 2014 by RodYorkttr
	Lithium Ion battery for the TTR250 (Preview) See here Anyone tried one on their TTR yet? Brian	TTRfan	6	1786	Oct 7, 2014 by claytronic
	Rough running after rebuild (Preview) Can anyone help me with my thought process please... I've taken the head/barrel off and refitted to cure an oil leak from the bottom of the barrel at the front. Now it's all back together it runs as rough under load as you like. Idle is fine, steady throttle is ok but not brilliant but acceleration is jerk...	dern	9	951	Oct 3, 2014 by dern
	Tekei Y30p Issue....Jarrah please chime in. Also, exhaust studs broken and frozen in the head... (Preview) Ordered a new idle set screw from Yamaha. Lo and Behold, it is on national backorder, mine broke as I was attempting to adjust as this bike has sat in the elements to my suspicion, for quite some time. I'm going to pull the carb and drill out the original. Does anyone happen to know what pitch and thread si...	kgoose89	3	564	Sep 29, 2014 by kgoose89
	Oil in the carb, oil collecting upon air fins on the cylinder casing (Preview) Ok, so I finally got my bike running. Upon the throttle sticking after running it a few times I decided to inspect it further. I pulled the carburetor and noticed a super sticky brown gunk on the slide and outlet portion of the carb. I cleaned the emulsifier and the carb, it seems like it is beginning to st...	kgoose89	3	694	Sep 29, 2014 by kgoose89
	neutral switch advice (Preview) yesterday my neutral light went out thinking it was the bulb i proceeded to change it.Unfortunately the bulb holder disintigrated , leaving the wires bare with the copper fittings attached .there is power to the brown wire. The bike will now not start on the starter unless the clutch is pulled in and t...	hanzo	3	648	Sep 28, 2014 by hanzo
	Top-end work (Preview) Even though we have a bit of nice weather ahead, I am thinking about winter maintenance for the TTR which may include the top-end. The bike is now 10 years old, runs OK but I really don't know much about it's maintenance prior to my getting it 3 years ago. Seems like a valve job, timing chain, etc. certainl...	TDVT	2	377	Sep 28, 2014 by TTRfan
	chain lub - what's best for dirt bikes. (Preview) Years ago I before 0-ring chains I used to remove the chain wash it in paraffin and cook it up in 'linklife', hang up the warm chain over the tin as most used to run back, worked well. For the last few years I've used Chainsaw oil before each trip of say 100miles, often over oiling to let the surplus +dirt ru...	matador	5	545	Sep 26, 2014 by Pendo
	Starting/electric issues (Preview) Hi all, returned from holiday and the bike wont start, battery has power as everything works on it but the thing wont even turn. so, bikes in neutral, press the button and nothing happens....just the neutral light dims And brightens again when I leave the start button. must be an electrical fault some...	hertsrider	11	1177	Sep 26, 2014 by hertsrider
	New problem (Preview) Went riding saturday bike ran great as always. Get up the next day, its 40 f outside, tried to start, only the starter turned . choked it and the same. So now i am late for work. Drive car. Get home pull the spark plug and no spark. Checked starter switch, took apart and cleaned. Unpluged most connection...	nwrider	6	540	Sep 25, 2014 by nwrider
	Aftermath of water/rocks (Preview) Took her apart tonight and found my problem some how rocks ended up inside of it...? That mark on the sleeve is pretty deep.. What should I do?	zoid	3	378	Sep 25, 2014 by TTRfan
	Tiny Tach (Preview) Hi, If your like me and riding the bike in the high rev range you might be looking for a tacho. This is the tiny tach and I have found it very good. It is American made and is also an hour meter. Regards, Matt	Matt G	9	4422	Sep 24, 2014 by TTRfan
	Dsus Fasteners (Preview) Is there any way around paying then dollars a piece for the specialized fasteners totalling 30 dollars to mount the air cleaner cover?	kgoose89	7	590	Sep 24, 2014 by TTRfan
	Front spindle (Preview) Picked up a front and rear wheel to keep knobbys and a 50 tooth sprocket on them for bush rides. They are the purple rims and they will be going on a blue model. The front spindle has this bolt coming out of its center. I havnt seen any photos of this bolt. Im going to use my blue model spindles On the purple whe...	Markvan	2	313	Sep 23, 2014 by Markvan
	ign switch repair (Preview) Just pulled my ign switch apart . Cleaned up the contacts .turned the center bridge 180degrees put all back together and all good . All done in about 20 mins	ttboof	2	344	Sep 21, 2014 by ttboof
	ttr ticking! (Preview) So a few days after if filled by bike with water (got it out now running) she started ticking. The cam chain doesnt have much play and is tight. and it starts right up so I dont think its the valves. But what do I know.. Just so many problems after she took in water	zoid	1	326	Sep 21, 2014 by TTRfan
	Comparison of Hel and Venhill after-market front brake hoses (Preview) I just happen to have a new Hel hose in my pile of stuff "to do something with" so thought it might be interesting to compare it with the Vehill front hose. The next pic compares the fittings at the reservoir end: The Venhill hose has a plastic sleeve over the hose which adds stiffness where t...	TTRfan	1	811	Sep 21, 2014 by WillsTTR
	Need help with the ttr! (Preview) hey! I have a 2001 ttr250. bought it from a guy for 450 bucks with the title! bad thing was it smoked and he said it would stop once it wormed up never stopped... So i replaced the valve seal along with rings and honed the cylinder. Ran great after that no smoking at all. Then i went to a atv part and layed it ove...	zoid	12	696	Sep 21, 2014 by zoid
	Jet age - carb sorted at last (Preview) Since I bought my TTR a couple of years ago it's been a bit spluttery cold and less pickup against my son's TTR, I have done the normal stuff x3 times or more. Then looking through the parts list Brian mentioned about pilot jets being difficult to clean, so I ordered up a couple of replacement jets a bit lar...	matador	1	326	Sep 20, 2014 by TTRfan
	Lost Power (Preview) Hi everyone, another problem again. After my spirited riding at the MX track last month, the bike doesn't feel the same. At about half throttle, she develops a splutter which leads me to think about fuelling issues again. But I also noticed that the compression seems quite low, I can near e...	Fladdem	11	1131	Sep 20, 2014 by TTRfan
	Metal Spinning (Preview) Metal Spinning this very tired rear hub has had wheel bearing failure on the two bearing side and was a right nob to get running true in the lathe had to true the disk side before we could even cut the sprocket side. bad metal taken out new steal ring fitted an locked in to carry the two wheel bearings....	pug	4	487	Sep 17, 2014 by WheelMan
	Rear caliper pins - more than one part? (Preview) I had a query from a customer this morning who had bought a rear caliper slide pin and rubber repair kit - all genuine Yamaha parts. The new pin (part # 3SP-25926-51) has an extra shoulder - see pic below: We have sold quite a few of these kits (see here) and not had a query before. I have also fitted a few and...	TTRfan	2	274	Sep 15, 2014 by Chimpy
	Starting problems - kgoose89 (Preview) kgoose89 wrote: Ok I'm new here sorry if I'm not in the correct area. First off, I purchased a 2000 model ttr250 for 300 dollars. Cleaned the valves, tore everything down. Everything looks fine. I put everything back together, set timing etc. I went to start it yesterday, I've got spark but not sure if t...	TTRfan	11	754	Sep 11, 2014 by kgoose89
	Oil leak, Quick question (Preview) Going off the previous guys post about the oil leak seen here. I have ordered the replacement cap but the retaining bolt ive got it also leaking, I think its stripped. It wont tighten down at all. Does anyone know what part number or what kind of screw this is? Mine looks slightly different then the one pi...	MarcusAurelius	3	441	Sep 10, 2014 by MarcusAurelius
	Is this a snail cam from a Raid? (Preview) I was cleaning some axles and snail cams this morning and came across two snail cams different to all the others. These have raised corners as shown in the pic above. All my others are dead flat. It may be a coincidence but I have just one Raid axle (shorter than the OE ones) so am guessing they go together...	TTRfan	1	307	Sep 10, 2014 by WillsTTR
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