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

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...

tom438596 · tom438596

Hey guys. I recently had my bike in at the shop and they told me my starter clutch is wearing that's why I have a clunk when starting. I asked for a quote on the parts new and there so expensive considering what they are. Has anyone got any wrecks/parts in Australia on here that can help me out???

scottydog · scottydog

Hi,my brake light was staying on all the time so i checked the foot brake switch and all was well.However i removed the front brake switch and when i push the little pin it goes out.I dont see any way of adjusting this, is it just worn and needs replacing? Thanks in advance Lindsay

leigh · leigh

Well gotta thank this awesome forum again, had a leaking rear shock so pulled it out and sent it off and rebuilt the carby while I was at it. What a difference that has made as well. Moved the clip a notch, new seals and diaphragm. So easy doing all the above once I read all the stuff on here. Just great. ...

ripper · ripper

Well it would seem that there aren't any frames going in the UK and given that I have a cosmetically challenged (f%%**d) frame does anyone know if a ttr 225 frame will except a 250 engine or do I have to start cutting and doctoring the original ? REGARDS RIPPER

sena · sena

Hi all, The front brake lever of my old TTR is broken, allowing to be actioned only by 2 fingers. Adding to that, it seized the fluid return 2-3 times. Is the full mechanism easy to find ? not very expensive ? (shipped worldwide, or at least to France), or should I still try to replace master cylinder with a...

grandad · grandad

I've developed a grinding rattling metallic noise fromm around the engine sprocket - gearbox aria when riding,could it be gearbox bearingss, if so does this mean a complete engine strip, rest of engine runs as sweet as a nut,HELP

Padowan · Padowan

Trying to get at the starter gears and motor and have found 2 out of the three cover bolts sized. Have cut slots to try remove with no luck and am running out of options before I have no choice but to drill them out. At least the holes are through drilled so I should be able to clean them out. Anyway, Rant o...

Truxx · Truxx

I'm in the middle of putting my clutch back together after hearing a slight rattle in there somewhere. I can't find anything wrong so putting it bac together. The manual says to align the punch mark on the pressure plate to the mark on the basket? i can see the punch mark on pressure plate but not on baske...

Nomada_Firefox · Nomada_Firefox

Hi. I´m searching this, it is the screw where you bring in the new oil in the engine. Is this reference 90340-20143? is there another option for this part? I´m curious about if it was this from http://www.ttr250.com/TTR_extras/ Pds: This is not my TTR250, I took this screenshot from the net for as...

TTRfan · TTRfan

I was having a tidy up and came across a brand new black seat strap of the same design as the TTR seat straps but significantly shorter. It's 39cm long compared to the standard 55cm It is way too short for even a fully lowered OE seat so what could it be from? I know the Raid seats have seat straps and there w...

Lin · Lin

Help! What size is the front sprocket nut?

Truxx · Truxx

Noticed today when I had the bike at tdc the marks on the cam gear didn't line up flush with the head. See pic: does this mean the cam chains stretched? Thanks dave -- Edited by Truxx on Monday 18th of August 2014 08:24:06 PM

T30 · T30

My speed is not working again. I am just about to fit another 3 prong washer from Brian but I think I have a part missing somewhere. I have tried fitting an additional washer under the circlip to ensure the 3 prong washer sits tight down on the drive ring. There was no washer fitted when I first had the bike....

dern · dern

Does anyone know where I can get a new coil+lead+plug cap from in the UK? Brian doesn't seem to list them and I can't find one online. Alternative fitments also fine, doesn't need to be original just reliable. Thanks, Mark

WillsTTR · WillsTTR

G'day All, I've just realised my '94 Raid is a Japanese market machine. I read in the project lemon thread his bike has grease nipples on the swing arm pivots etc. I'm wondering if there are any other differences I should be aware of? Does this have the potential to make buying parts a nightmare?

Than...

nwrider · nwrider

on my us 2006 ttr, i swapped a cracked headlight for one i picked up on ebay. with a high and a low bulb. 12 watt 18v not very bright, so i switch to a 12w 35 watt, not much differnce. Last nigth i wired in some h3 bulbs with a a little extra manufacturing. but still not bright. Does the ttr not produce enough...

Pendo · Pendo

Has anyone replaced their timing chain guides and do you need to remove the head to do it?

TTRfan · TTRfan

My friend Andy (who sells the TTR chain sliders and shock top bush kits) needs a replacement exhaust for his TTR. Not one to take the easy route such as finding a s/h one, Andy has made contact with a few exhaust manufacturers with a view to getting a small batch of replacement exhausts made up. Only one ma...

Chrisj796 · Chrisj796

Hello I just bought a 2005 ttr250 with a ffm pipe, an it is running me in circles. it has fresh fluids, new air filter an battery, the bike starts right up no problem but after about 45 min or so of slow trail riding it begins to bog out an dies. It will only start with the choke on an them idles high as the sky an...

TTRfan · TTRfan

I would be interested in other owners views on the foam lining on the TTR's side panels. On a dirtbike, the foam is a PITA. 1. It is difficult to clean properly without power washing it - which requires taking the panels off. 2. It stays wet after power washing creating a moist atmosphere around the frame...

fishernz · fishernz

Hi all. I'm currently in Laos on my way to Europe and I'm having problems with the carb. I've got a 2012 TTR250 with 16000kms. The first and most common problem is when I climb up a hill or any incline the bike coughs and splutters like its misfiring or flooding. It happens at low/mid revs but at higher revs...

Topic		Started By	Replies	Views	Last Post
	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	1028	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	818	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	420	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	1348	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	601	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	363	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	861	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	550	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	407	Sep 10, 2014 by WillsTTR
	looking for parts!!! starter clutch (Preview) Hey guys. I recently had my bike in at the shop and they told me my starter clutch is wearing that's why I have a clunk when starting. I asked for a quote on the parts new and there so expensive considering what they are. Has anyone got any wrecks/parts in Australia on here that can help me out???	tom438596	1	454	Sep 7, 2014 by TTRfan
	brake light (Preview) Hi,my brake light was staying on all the time so i checked the foot brake switch and all was well.However i removed the front brake switch and when i push the little pin it goes out.I dont see any way of adjusting this, is it just worn and needs replacing? Thanks in advance Lindsay	scottydog	7	787	Sep 3, 2014 by TTRfan
	Go ttr go (Preview) Well gotta thank this awesome forum again, had a leaking rear shock so pulled it out and sent it off and rebuilt the carby while I was at it. What a difference that has made as well. Moved the clip a notch, new seals and diaphragm. So easy doing all the above once I read all the stuff on here. Just great. ...	leigh	3	660	Sep 1, 2014 by TTRfan
	Frame (Preview) Well it would seem that there aren't any frames going in the UK and given that I have a cosmetically challenged (f%%**d) frame does anyone know if a ttr 225 frame will except a 250 engine or do I have to start cutting and doctoring the original ? REGARDS RIPPER	ripper	1	614	Aug 31, 2014 by TTRfan
	front brake question (Preview) Hi all, The front brake lever of my old TTR is broken, allowing to be actioned only by 2 fingers. Adding to that, it seized the fluid return 2-3 times. Is the full mechanism easy to find ? not very expensive ? (shipped worldwide, or at least to France), or should I still try to replace master cylinder with a...	sena	1	440	Aug 31, 2014 by Truxx
	Something sounds expensive (Preview) I've developed a grinding rattling metallic noise fromm around the engine sprocket - gearbox aria when riding,could it be gearbox bearingss, if so does this mean a complete engine strip, rest of engine runs as sweet as a nut,HELP	grandad	5	586	Aug 30, 2014 by ttboof
	Starter gear cover bolts made of cheese. (Preview) Trying to get at the starter gears and motor and have found 2 out of the three cover bolts sized. Have cut slots to try remove with no luck and am running out of options before I have no choice but to drill them out. At least the holes are through drilled so I should be able to clean them out. Anyway, Rant o...	Padowan	9	740	Aug 27, 2014 by Padowan
	Clutch basket punch mark ? (Preview) I'm in the middle of putting my clutch back together after hearing a slight rattle in there somewhere. I can't find anything wrong so putting it bac together. The manual says to align the punch mark on the pressure plate to the mark on the basket? i can see the punch mark on pressure plate but not on baske...	Truxx	7	836	Aug 25, 2014 by Truxx
	What is the reference number from this plug? (Preview) Hi. I´m searching this, it is the screw where you bring in the new oil in the engine. Is this reference 90340-20143? is there another option for this part? I´m curious about if it was this from http://www.ttr250.com/TTR_extras/ Pds: This is not my TTR250, I took this screenshot from the net for as...	Nomada_Firefox	2	806	Aug 25, 2014 by Nomada_Firefox
	What's this seat strap from? (Preview) I was having a tidy up and came across a brand new black seat strap of the same design as the TTR seat straps but significantly shorter. It's 39cm long compared to the standard 55cm It is way too short for even a fully lowered OE seat so what could it be from? I know the Raid seats have seat straps and there w...	TTRfan	0	416	Aug 23, 2014 by TTRfan
	Front Sprocket Nut (Preview) Help! What size is the front sprocket nut?	Lin	7	1303	Aug 21, 2014 by Ruger
	Timing marks not lined up (Preview) Noticed today when I had the bike at tdc the marks on the cam gear didn't line up flush with the head. See pic: does this mean the cam chains stretched? Thanks dave -- Edited by Truxx on Monday 18th of August 2014 08:24:06 PM	Truxx	7	1227	Aug 21, 2014 by LoopSoosStroop
	Blue tank Speedo Drive - exploded view (Preview) My speed is not working again. I am just about to fit another 3 prong washer from Brian but I think I have a part missing somewhere. I have tried fitting an additional washer under the circlip to ensure the 3 prong washer sits tight down on the drive ring. There was no washer fitted when I first had the bike....	T30	3	884	Aug 19, 2014 by T30
	Coil and plug cap supplier (Preview) Does anyone know where I can get a new coil+lead+plug cap from in the UK? Brian doesn't seem to list them and I can't find one online. Alternative fitments also fine, doesn't need to be original just reliable. Thanks, Mark	dern	10	781	Aug 12, 2014 by dern
	IDENTIFICATION HELP? (Preview) G'day All, I've just realised my '94 Raid is a Japanese market machine. I read in the project lemon thread his bike has grease nipples on the swing arm pivots etc. I'm wondering if there are any other differences I should be aware of? Does this have the potential to make buying parts a nightmare? Than...	WillsTTR	2	477	Aug 9, 2014 by WillsTTR
	night riding (Preview) on my us 2006 ttr, i swapped a cracked headlight for one i picked up on ebay. with a high and a low bulb. 12 watt 18v not very bright, so i switch to a 12w 35 watt, not much differnce. Last nigth i wired in some h3 bulbs with a a little extra manufacturing. but still not bright. Does the ttr not produce enough...	nwrider	8	725	Aug 6, 2014 by sammyttr
	Replacing timing chain guides (Preview) Has anyone replaced their timing chain guides and do you need to remove the head to do it?	Pendo	8	2382	Jul 26, 2014 by ttboof
	Lightweight, rust proof, quiet after-market exhaust for the TTR? Try a Motad! (Preview) My friend Andy (who sells the TTR chain sliders and shock top bush kits) needs a replacement exhaust for his TTR. Not one to take the easy route such as finding a s/h one, Andy has made contact with a few exhaust manufacturers with a view to getting a small batch of replacement exhausts made up. Only one ma...	TTRfan	34	16111	Jul 25, 2014 by TTRfan
	New to 4 strokes and lost. Help (Preview) Hello I just bought a 2005 ttr250 with a ffm pipe, an it is running me in circles. it has fresh fluids, new air filter an battery, the bike starts right up no problem but after about 45 min or so of slow trail riding it begins to bog out an dies. It will only start with the choke on an them idles high as the sky an...	Chrisj796	2	2209	Jul 25, 2014 by Chrisj796
	Side panel foam lining (Preview) I would be interested in other owners views on the foam lining on the TTR's side panels. On a dirtbike, the foam is a PITA. 1. It is difficult to clean properly without power washing it - which requires taking the panels off. 2. It stays wet after power washing creating a moist atmosphere around the frame...	TTRfan	9	1239	Jul 23, 2014 by TT-R250M
	Help! I'm stuck in Laos with a leaky carb (Preview) Hi all. I'm currently in Laos on my way to Europe and I'm having problems with the carb. I've got a 2012 TTR250 with 16000kms. The first and most common problem is when I climb up a hill or any incline the bike coughs and splutters like its misfiring or flooding. It happens at low/mid revs but at higher revs...	fishernz	13	1515	Jul 22, 2014 by TT-R250M
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