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

phil2 · phil2

Hi All am i to tall for a TTR250 as on one of the motorbike forums a man has commented saying i am to tall at 5ft 11.5'' inches to be exact, 32 to 33'' inch leg length comments please thank you

L16MHU · L16MHU

http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=111801602085&category=178017&pm=1&ds=0&t=1449...

Sprok · Sprok

The notorious stock Allen head bolts are known to be a PITA and strip easily. An excellent and easy replacement is the bolts that connect the fuel tank main bracket to the fuel tank (blue/plastic). They are exactly the same size, have a normal 8mm hex head, and have the same coating on them (phosphate?)...

TTRfan · TTRfan

Replacing fork seals is a relatively straightforward job but I had forgotten how messy it can be! No matter how carefully I drain the oil there always seems to be a residue that comes out to attack me I got a few pairs of forks that I am going to fit new seals to etc so that they can go into stock and I am think t...

TTRfan · TTRfan

OK - I am getting to the end of updating the FAQ and have come across this entry: When it all goes wrong! If anyone knows of a repair shop that has particular expertise with TTR engines please e-mail me with details. In the UK, the Yamaha Technical Hotline number is 01932 358 065 - very helpful apparent...

Nomada_Firefox · Nomada_Firefox

A simple question. If I open the engine, what more pieces should I change? Including all the gaskets. If somebody can make me a list and where I can find them, it would be good. I have forgotten for many time this problem in my TTR and probably I should not forget it forever.

TTRfan · TTRfan

I have been contacted this morning by an owner who lives in Vietnam. See his message below:"Do you have any idea what might be wrong with my bike. When I START the bike, it occasionally makes a very loud clunk or even double-clunk noise the second it actually starts running. The noise seems to come...

mpok3 · mpok3

http://www.mandp.co.uk/index.php/default/maxxis-c858-2341.html

Gus The Snail · Gus The Snail

Are the winder nut thingies a 2 piece or one? Tried turning it with screwdriver and hammer but didnt budge.. Bike is a little high for female riders , so need to lower it a little.

Wynand · Wynand

Hi everyone So its been an interesting month. Managed to drown a land rover and crashed the ttr twice on trails. With yesterdays mishap I managed to hit the front fork at a respectable 20km/h and now its leaking oil from the hex nut. Tried to look at some diagrams to see how it seals but did not quite get th...

Coast rider · Coast rider

Hi All can someone help me understand the wiring diagram my high beam isn't working. my bike is a 2004 uk model so the lights are wired permanently on (no on off switch) the diagram shows a switch with a single wire to a single double filament bulb my bike has a small side light bulb and a double filament (h...

TTRfan · TTRfan

We had a customer who asked if I had any ideas of what can be causing pulsing at the brake lever on braking. He had tried a couple of used discs thinking one might be warped and also changed pads but the symptoms remained. I had come across this once before and, after a lot of head scratching, managed to...

Michael · Michael

Hey, I have a Raid from about '99 and want t o add an on/off switch. Can someone tell me which colour wire to cut and pass through the switch? Thanks

Jimbo125 · Jimbo125

I have a 96 ttr and it blows alot of white smoke. Im pretty sure it needs new piston rings but i would like to make sure first. Also I think there is a problem with my clutch because when I go into third gear or above while wrapping on the throttle the engine starts reving but I dont build up any speed till it st...

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...

Topic		Started By	Replies	Views	Last Post
	Too Tall For a TTR250? (Preview) Hi All am i to tall for a TTR250 as on one of the motorbike forums a man has commented saying i am to tall at 5ft 11.5'' inches to be exact, 32 to 33'' inch leg length comments please thank you	phil2	10	2181	Mar 4, 2016 by petenz
	Oil temp- has anyone tried one of these? (Preview) http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=111801602085&category=178017&pm=1&ds=0&t=1449...	L16MHU	5	1093	Mar 3, 2016 by BM Steve
	Alternative bolts for the starter cover (Preview) The notorious stock Allen head bolts are known to be a PITA and strip easily. An excellent and easy replacement is the bolts that connect the fuel tank main bracket to the fuel tank (blue/plastic). They are exactly the same size, have a normal 8mm hex head, and have the same coating on them (phosphate?)...	Sprok	1	749	Feb 28, 2016 by Sprok
	What a forking mess! (Preview) Replacing fork seals is a relatively straightforward job but I had forgotten how messy it can be! No matter how carefully I drain the oil there always seems to be a residue that comes out to attack me I got a few pairs of forks that I am going to fit new seals to etc so that they can go into stock and I am think t...	TTRfan	20	1264	Feb 28, 2016 by TTRfan
	Recommended bike shops that know their way around a TTR250! (Preview) OK - I am getting to the end of updating the FAQ and have come across this entry: When it all goes wrong! If anyone knows of a repair shop that has particular expertise with TTR engines please e-mail me with details. In the UK, the Yamaha Technical Hotline number is 01932 358 065 - very helpful apparent...	TTRfan	2	670	Feb 25, 2016 by pug
	What more should I change if I replace the Valve Stem Oil Seals? (Preview) A simple question. If I open the engine, what more pieces should I change? Including all the gaskets. If somebody can make me a list and where I can find them, it would be good. I have forgotten for many time this problem in my TTR and probably I should not forget it forever.	Nomada_Firefox	9	1094	Feb 25, 2016 by Nomada_Firefox
	Clunk diagnosis needed! (Preview) I have been contacted this morning by an owner who lives in Vietnam. See his message below:"Do you have any idea what might be wrong with my bike. When I START the bike, it occasionally makes a very loud clunk or even double-clunk noise the second it actually starts running. The noise seems to come...	TTRfan	9	1088	Feb 24, 2016 by mossproof
	Cheng Shin C858 tyres (Preview) http://www.mandp.co.uk/index.php/default/maxxis-c858-2341.html	mpok3	2	808	Feb 23, 2016 by petenz
	winding rear shock down to lower seat height (Preview) Are the winder nut thingies a 2 piece or one? Tried turning it with screwdriver and hammer but didnt budge.. Bike is a little high for female riders , so need to lower it a little.	Gus The Snail	3	649	Feb 22, 2016 by TTRfan
	Front fork leaking (Preview) Hi everyone So its been an interesting month. Managed to drown a land rover and crashed the ttr twice on trails. With yesterdays mishap I managed to hit the front fork at a respectable 20km/h and now its leaking oil from the hex nut. Tried to look at some diagrams to see how it seals but did not quite get th...	Wynand	4	1209	Feb 22, 2016 by Wynand
	confused by wiring diagram (Preview) Hi All can someone help me understand the wiring diagram my high beam isn't working. my bike is a 2004 uk model so the lights are wired permanently on (no on off switch) the diagram shows a switch with a single wire to a single double filament bulb my bike has a small side light bulb and a double filament (h...	Coast rider	7	2076	Feb 18, 2016 by Coast rider
	Pulsing at the brake lever on braking (Preview) We had a customer who asked if I had any ideas of what can be causing pulsing at the brake lever on braking. He had tried a couple of used discs thinking one might be warped and also changed pads but the symptoms remained. I had come across this once before and, after a lot of head scratching, managed to...	TTRfan	4	963	Feb 18, 2016 by pricey
	Raid aftermarket headlight switch wire to cut? (Preview) Hey, I have a Raid from about '99 and want t o add an on/off switch. Can someone tell me which colour wire to cut and pass through the switch? Thanks	Michael	11	5121	Feb 18, 2016 by petenz
	New piston rings and clutch pads (Preview) I have a 96 ttr and it blows alot of white smoke. Im pretty sure it needs new piston rings but i would like to make sure first. Also I think there is a problem with my clutch because when I go into third gear or above while wrapping on the throttle the engine starts reving but I dont build up any speed till it st...	Jimbo125	6	851	Feb 15, 2016 by Jimbo125
	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	1004	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	832	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	2168	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	831	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	1582	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	678	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	2265	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	7214	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	562	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	810	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	3508	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	585	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	599	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	2279	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	638	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	3633	Jan 13, 2016 by peteBLUEttr
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