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

TTRfan · TTRfan

Knocked up out of a spare IKEA flatpack hex key by ttrsteve - kindly donated to me after we had finished using it on his engine What is nice about it is that it sticks in the slot leaving two hands free. Brian

Sprok · Sprok

Any ideas how to get the chain puller off? It's the only good part left on this axle and for some reason costs twice as much as the nearly identical puller on the other side (WTF?!). A previous knucklehead ruined the threads then ground off the end of the axle to get the nut back on (but still cross-threade...

TTRfan · TTRfan

We have had quite a few new owners joining us recently and it may be worth pointing out that there should be a spare 15 amp fuse in the RH side of the battery box as shown in the photo below. It is the only fuse on the TTR and the one in use sits in a holder that clips into the top of the battery box as can be seen in...

petenz · petenz

What do you Australian fella's think of your Penrite oil ??? Got 3 bikes that need a oil change thats like $200 for Motul 5100 oil I have been useing... Spoted this Penrite MC 4ST 20/50 semi synthetic motor cycle oil while I was getting some new head light bulbs for the tin top... Like half the prise of Motu...

AndrewM · AndrewM

Got any idea what this rattle is? (see youtube link below). Its only there when the engine has warmed up. I have just fitted a new timing chain and it the same. It has also had a rebore and new piston. I have check the valve clearance and they seem ok. https://youtu.be/P4QQPBIFY24 -- Edited by AndrewM o...

texasT · texasT

I bought this filter/basket combo some time back so I could swap out in a few minutes and clean my OE filter at a later date and have as a back-up. When I made the swap, I noticed that the UNI basket has a piece on it that was just a bit too tall to make the clamp snap shut [URL=http://s1156.photobucket.com/u...

commanderjjones · commanderjjones

Hey guys. I just picked up an '05 TTR 250 this past Wednesday (so I haven't had a chance to get a manual yet) and have a few questions. I was hoping to ride it tomorrow, but ran across a couple of issues when I started servicing it last night. When I started to clean the air filter, I noticed a couple of hoses a...

TTRfan · TTRfan

Anyone had this? When a mate's TTR gets hot (about 15 miles into a ride) a very loud screech starts in the clutch/gearbox area. The pitch changes as the gears are changed and it happens with the clutch fully engaged. I haven't heard it myself and was unable to replicate the noise when I took the TTR for a ru...

TTRfan · TTRfan

This photo has been added to my Black Museum folder! The current owner popped around tonight to pick up a new 50 pilot jet to replace this one. You just wonder how the previous owner had managed to do this damage Interestingly the TTR started and ran well at lower revs suggesting that the pilot jet con...

Wynand · Wynand

Hi everyone So I recently bought a ttr and the previous owner had the suspension to a very soft setting. This resulted in the rubber at the bottom of the rear shock that prevents the bike from bottoming out (dont know if im explaining it wrong im a newbie) getting quite worn. Yamaha wants to sell me a total...

sena · sena

Hello everyone. my bike restoration project seems becoming a "Winter project in a Tropical country" After cleaning and gently grinding in the valves, I found that exhaust ones are out of specification. I will need to order a new set and cut the valve seats to fit the specs. Then it will b...

peteBLUEttr · peteBLUEttr

Some of the best maintenance guide videos I have come across. Think they may well be handy for some people. May add more to these and perhaps you have suggestions too. [video=http...

TTRfan · TTRfan

See here Very good points! Brian

Serial · Serial

Plz anyone got any idea where fuel mixture srcew is on the carb? When i open full throttle i m facing some engine jumble... i have aftermarket exhaust...and never befrore tried to adjust the carb...i think thats the problem...the fuel mixture is very rich-poor or something similar... ps:i already...

Zach · Zach

Hi can anyone confirm the size of tyres for my TTR250. I want to fit MT43s for the LE trial. Thanks Zach

MikeBarnacle · MikeBarnacle

this is probably a subject others have covered I could do with a bit of help. just picked up a ttr but she won't start, starter motor turns. But the engine doesn't crank. The last owner said that the guy he got it off had had the bike in bits but didnt say to what extent. Fuel flows fine when in reserve but no...

Moo · Moo

I recently installed some of the venhill long throttle cables, and my throttle now sticks and won't snap back. The issue lies somewhere with the hand control, as when I pull the cables on their own, it all snaps back fine. If I install just the pull cable, all is fine... If I install just the push cable.....

Coast rider · Coast rider

OK a quick question what inner tube repair patches \ kits do people carry when green laning in UK I'll carry a spare front tube but 2 punctures isn't out of he bounsd of possibility I won't be fitting mouse's and can't afford TuBliss yet brand names would be useful cheers N

JOHNYBOY · JOHNYBOY

has anyone tried these small cylinders to blow up tyres how do they fit on the valve & wheres the best & cheapest place to buy them ive seen some & the thread is on the outside so how does this fit on valve

basher · basher

i was changing the oil and found the bike had a washable metal mesh oil filter, i had the wrong filter sent so cleaned it and stuck it back in, are these any good? I can see the benefits for touring where you only need to find oil but i would thinkna standard filter would catch smaller particles

pug · pug

So man caves 0ver the years playing with bikes Trikes an Cars and from a small corner of my old mans home workshop an my first bent spanners I have worked my way up to a nice setup man cave. pic's are 4-5 years old and have packed in a bit more kit in that time but when tidy it looks a little like this an I can i...

sk84lajf · sk84lajf

hello guys ,,my bike blew a fuse while riding and when i changed the fuse the clutch switch and the stand switch started functioning (when i bought the bike the clutch switch and side stand switch were'nt functioning ** the bike started without clutch pulled in and with side stand don ) ...now the bike...

apw99 · apw99

Hi, I jsut got a 93 TTR two weeks ago and I'm doing a few jobs on it, well a few jobs in fact! One thing is it has a 'TwinAir' air filter which looks in good condition but is dripping with a blue oil. Is this filter oil? If so is it over-oiled? Can I clean the filter and if so how? Any help appreciated Thanks! APW

aussiedeuce · aussiedeuce

Hi all, I've got the bike stripped-down at the moment after a close call out bush caused by the carby. On my first real ride no less. Thirty seconds into it. Anyway I was wondering if anyone had any suggestions about what I should be looking for or fixing /modifying while I have the bike apart? Cheers...

aussiedeuce · aussiedeuce

Hi all, Just looking behind my headlight shroud and it has me wandering if the speedo is the original or not. Any thoughts? CHEERS.

Keith89 · Keith89

Oh no just found this

basher · basher

Ours needs a rebuild, is there one off another bike that would be considered an upgrade? Or is a rebuild a better idea, also I have read somewhere the enduro version has a higher seat height is this due to the suspension or just the seat? a bit more height wouldn't go a miss and if it's only a change of linkag...

Moo · Moo

The carb rubber between the engine and manifold is starting to leak. Anyone know where I can get another?

jpv7774 · jpv7774

Hello all, I have 3 questions for ya. I prefer the looks of a black seat on my blue bike. I have used vinyl paint on boat cushions before with good success. Has anyone tried this on their TTR seat? Tried to paint the blue seat black that is.... :) Question number 2 My air filter cover has 3 points of clos...

MikeBarnacle · MikeBarnacle

Ok so am wondering what you guys think, the TTR is in need an MOT to get her back on the road but I am unsure what other work she needs to get her "road" safe. (Bar bearing on the rear wheel) Do you think I should MOT her knowing there's a couple of potential issues or do I fix those first and then MO...

Topic		Started By	Replies	Views	Last Post
	Cheap and effective tensioner tool! (Preview) Knocked up out of a spare IKEA flatpack hex key by ttrsteve - kindly donated to me after we had finished using it on his engine What is nice about it is that it sticks in the slot leaving two hands free. Brian	TTRfan	5	855	Feb 15, 2016 by locky
	Getting the left side chain puller off a rusted axle (Preview) Any ideas how to get the chain puller off? It's the only good part left on this axle and for some reason costs twice as much as the nearly identical puller on the other side (WTF?!). A previous knucklehead ruined the threads then ground off the end of the axle to get the nut back on (but still cross-threade...	Sprok	3	721	Feb 10, 2016 by Sprok
	Did you know about the spare fuse in the battery box (Preview) We have had quite a few new owners joining us recently and it may be worth pointing out that there should be a spare 15 amp fuse in the RH side of the battery box as shown in the photo below. It is the only fuse on the TTR and the one in use sits in a holder that clips into the top of the battery box as can be seen in...	TTRfan	0	1677	Feb 10, 2016 by TTRfan
	Penrite Oil.... (Preview) What do you Australian fella's think of your Penrite oil ??? Got 3 bikes that need a oil change thats like $200 for Motul 5100 oil I have been useing... Spoted this Penrite MC 4ST 20/50 semi synthetic motor cycle oil while I was getting some new head light bulbs for the tin top... Like half the prise of Motu...	petenz	5	703	Feb 3, 2016 by petenz
	Engine Rattle (Preview) Got any idea what this rattle is? (see youtube link below). Its only there when the engine has warmed up. I have just fitted a new timing chain and it the same. It has also had a rebore and new piston. I have check the valve clearance and they seem ok. https://youtu.be/P4QQPBIFY24 -- Edited by AndrewM o...	AndrewM	6	1421	Feb 1, 2016 by AndrewM
	UNI Air Filter NU-3238ST vs. OE Yamaha filter Review (Preview) I bought this filter/basket combo some time back so I could swap out in a few minutes and clean my OE filter at a later date and have as a back-up. When I made the swap, I noticed that the UNI basket has a piece on it that was just a bit too tall to make the clamp snap shut [URL=http://s1156.photobucket.com/u...	texasT	0	559	Feb 1, 2016 by texasT
	intake questions (Preview) Hey guys. I just picked up an '05 TTR 250 this past Wednesday (so I haven't had a chance to get a manual yet) and have a few questions. I was hoping to ride it tomorrow, but ran across a couple of issues when I started servicing it last night. When I started to clean the air filter, I noticed a couple of hoses a...	commanderjjones	10	1970	Jan 29, 2016 by commanderjjones
	Screeching noise from gearbox or clutch area? ( 1 2 3 ) (Preview) Anyone had this? When a mate's TTR gets hot (about 15 miles into a ride) a very loud screech starts in the clutch/gearbox area. The pitch changes as the gears are changed and it happens with the clutch fully engaged. I haven't heard it myself and was unable to replicate the noise when I took the TTR for a ru...	TTRfan	102	6472	Jan 28, 2016 by Keith89
	Damaged pilot jet photo (Preview) This photo has been added to my Black Museum folder! The current owner popped around tonight to pick up a new 50 pilot jet to replace this one. You just wonder how the previous owner had managed to do this damage Interestingly the TTR started and ran well at lower revs suggesting that the pilot jet con...	TTRfan	3	448	Jan 28, 2016 by peteBLUEttr
	Rear shock rubber (Preview) Hi everyone So I recently bought a ttr and the previous owner had the suspension to a very soft setting. This resulted in the rubber at the bottom of the rear shock that prevents the bike from bottoming out (dont know if im explaining it wrong im a newbie) getting quite worn. Yamaha wants to sell me a total...	Wynand	4	677	Jan 27, 2016 by Wynand
	Valve seat cutter choice and/or replacement of seats? (Preview) Hello everyone. my bike restoration project seems becoming a "Winter project in a Tropical country" After cleaning and gently grinding in the valves, I found that exhaust ones are out of specification. I will need to order a new set and cut the valve seats to fit the specs. Then it will b...	sena	3	3029	Jan 25, 2016 by TTRfan
	Guide vids. (Preview) Some of the best maintenance guide videos I have come across. Think they may well be handy for some people. May add more to these and perhaps you have suggestions too. [video=http...	peteBLUEttr	0	451	Jan 20, 2016 by peteBLUEttr
	THE TOP 6 CHARACTERISTICS YOU NEED TO HAVE TO REBUILD A MOTORCYCLE ENGINE (Preview) See here Very good points! Brian	TTRfan	1	483	Jan 20, 2016 by peteBLUEttr
	Trying to adjust my Carburator (Preview) Plz anyone got any idea where fuel mixture srcew is on the carb? When i open full throttle i m facing some engine jumble... i have aftermarket exhaust...and never befrore tried to adjust the carb...i think thats the problem...the fuel mixture is very rich-poor or something similar... ps:i already...	Serial	3	1396	Jan 18, 2016 by TTRfan
	Tyres for LE trial (Preview) Hi can anyone confirm the size of tyres for my TTR250. I want to fit MT43s for the LE trial. Thanks Zach	Zach	6	518	Jan 14, 2016 by Zach
	Starting issue. With you tube video to help ( 1 2 ) (Preview) this is probably a subject others have covered I could do with a bit of help. just picked up a ttr but she won't start, starter motor turns. But the engine doesn't crank. The last owner said that the guy he got it off had had the bike in bits but didnt say to what extent. Fuel flows fine when in reserve but no...	MikeBarnacle	70	3146	Jan 13, 2016 by peteBLUEttr
	Throttle Snap Back Issue (Preview) I recently installed some of the venhill long throttle cables, and my throttle now sticks and won't snap back. The issue lies somewhere with the hand control, as when I pull the cables on their own, it all snaps back fine. If I install just the pull cable, all is fine... If I install just the push cable.....	Moo	2	667	Jan 12, 2016 by Moo
	Tube\Tyre repair kits? (Preview) OK a quick question what inner tube repair patches \ kits do people carry when green laning in UK I'll carry a spare front tube but 2 punctures isn't out of he bounsd of possibility I won't be fitting mouse's and can't afford TuBliss yet brand names would be useful cheers N	Coast rider	13	920	Jan 12, 2016 by TTRfan
	punctures (Preview) has anyone tried these small cylinders to blow up tyres how do they fit on the valve & wheres the best & cheapest place to buy them ive seen some & the thread is on the outside so how does this fit on valve	JOHNYBOY	3	745	Jan 10, 2016 by pug
	Mesh oil filters (Preview) i was changing the oil and found the bike had a washable metal mesh oil filter, i had the wrong filter sent so cleaned it and stuck it back in, are these any good? I can see the benefits for touring where you only need to find oil but i would thinkna standard filter would catch smaller particles	basher	4	673	Jan 3, 2016 by petenz
	Man cave do you have one let's see it (Preview) So man caves 0ver the years playing with bikes Trikes an Cars and from a small corner of my old mans home workshop an my first bent spanners I have worked my way up to a nice setup man cave. pic's are 4-5 years old and have packed in a bit more kit in that time but when tidy it looks a little like this an I can i...	pug	12	890	Dec 31, 2015 by aussiedeuce
	fuse problem (Preview) hello guys ,,my bike blew a fuse while riding and when i changed the fuse the clutch switch and the stand switch started functioning (when i bought the bike the clutch switch and side stand switch were'nt functioning ** the bike started without clutch pulled in and with side stand don ) ...now the bike...	sk84lajf	8	1576	Dec 29, 2015 by sk84lajf
	Cleaning 'Twin-Air' Air filter (Preview) Hi, I jsut got a 93 TTR two weeks ago and I'm doing a few jobs on it, well a few jobs in fact! One thing is it has a 'TwinAir' air filter which looks in good condition but is dripping with a blue oil. Is this filter oil? If so is it over-oiled? Can I clean the filter and if so how? Any help appreciated Thanks! APW	apw99	7	1578	Dec 24, 2015 by aussiedeuce
	WHILE I'M AT IT....? (Preview) Hi all, I've got the bike stripped-down at the moment after a close call out bush caused by the carby. On my first real ride no less. Thirty seconds into it. Anyway I was wondering if anyone had any suggestions about what I should be looking for or fixing /modifying while I have the bike apart? Cheers...	aussiedeuce	14	773	Dec 24, 2015 by aussiedeuce
	IS THIS ORIGINAL EQUIPMENT? (Preview) Hi all, Just looking behind my headlight shroud and it has me wandering if the speedo is the original or not. Any thoughts? CHEERS.	aussiedeuce	3	422	Dec 23, 2015 by aussiedeuce
	OH NO !!! (Preview) Oh no just found this	Keith89	6	672	Dec 22, 2015 by pug
	Rear shock (Preview) Ours needs a rebuild, is there one off another bike that would be considered an upgrade? Or is a rebuild a better idea, also I have read somewhere the enduro version has a higher seat height is this due to the suspension or just the seat? a bit more height wouldn't go a miss and if it's only a change of linkag...	basher	0	386	Dec 21, 2015 by basher
	Carb rubbers. (Preview) The carb rubber between the engine and manifold is starting to leak. Anyone know where I can get another?	Moo	2	335	Dec 20, 2015 by TTRfan
	3 easy questions......vinyl paint my seat? Help with air filter cover not engaging...bike skids when downshifting (Preview) Hello all, I have 3 questions for ya. I prefer the looks of a black seat on my blue bike. I have used vinyl paint on boat cushions before with good success. Has anyone tried this on their TTR seat? Tried to paint the blue seat black that is.... :) Question number 2 My air filter cover has 3 points of clos...	jpv7774	8	918	Dec 18, 2015 by Bsturkie
	MOT or not MOT, that is the question (Preview) Ok so am wondering what you guys think, the TTR is in need an MOT to get her back on the road but I am unsure what other work she needs to get her "road" safe. (Bar bearing on the rear wheel) Do you think I should MOT her knowing there's a couple of potential issues or do I fix those first and then MO...	MikeBarnacle	11	974	Dec 16, 2015 by Keith89
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