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

tracker · tracker

Hi need some help in finding out what's the problem.The engine starts and idles fine, but as i increase the revs the engine starts to surge as if it is short of fuel,this started quite suddenly and i'm stumped as to the cause. Things i have checked- Valve clearences Vacuum in petrol tank Air leak at carb...

adimitrov · adimitrov

I'm thinkig of buying a new complete head for my TTR. I've found one with a number of '4GY01', but on mine the number is '4GY00'. I cant find any info on what is the difference between the two. Will it fit ?

barra8 · barra8

Had a bit of time to spare so i borrowed a mates frame for a few days. This is the result.... Still have to sand it back a little & give it another coat of cold Galvanized zinc paint. Was'nt as fussed as Brian but i think it turned out great. Now...what to tell my mate ps. i'm only joking about using a...

burton500 · burton500

Hi all, I'm fairly new to off road riding. My TTR is fitted with AC10 Michelins, and I don't ride it far on the road, its nearly all off road stuff. Could anyone give me a guide to the pressures I should be running? Cheers Lee

TTRfan · TTRfan

I picked my engine stand up from the powder coaters today and it's looking good. Made from a redundant frame and some box profile it will make working on engines out of the frame a lot easier Just need a couple of lengths of rod to slot in to the engine bolt locations to hold the engine and I will be away!

BaronGreenback · BaronGreenback

Hi chaps, Is anyone familiar with brazing fuel tanks? I'm going to attempt this on my OE tank, as I wanted something a little more permanent than an adhesive filler. Apart from the obvious 'make sure there is no explosive residue' are there any important steps to follow? I didn't want to weld the tank at...

langley91 · langley91

I have a 1993 TTR250 OE, has all the normal things done but i would like a bit more noise as i ride mainly in traffic at the moment. Is there any information on baffle modification in the standard muffler, to get a bit more thump out of the old beast.

BaronGreenback · BaronGreenback

Pretty much all of the powder coat has chipped off my outer engine casings, and was wondering if this could be a symptom of something more serious, like overheating or fatigue? If I cleaned and polished up the alloy would it be durable enough for the vigors of offroading, or am I going to need to paint/po...

krisfront1 · krisfront1

hey , will a yz250f tail pipe fit on to a ttr header pipe or do i have to mod it to fit?

barra8 · barra8

Hello fellow TTR riders, I am having trouble with acquiring a ''new'' side gaurd for my blue 1999 TTR-250LC (blue gaurds) Any model from 1999-20012 will be right but i cannot seem to find anywhere to buy it I have acquired all my other OEM parts from www.power...

raz1966 · raz1966

i am trying to time up my ttr after fitting new exhaust valves, i am not sure which mark on the flywheel is tdc, there are 2 marks, one is a single line and the other a double line, the workshop manual i have says turn the engine clockwise until you see the mark, do they mean clockwise if you are looking at the l...

spit · spit

Hi all I have a blue 02. It won't start on the kick starter. It will return when I kick it & I can hear whirling inside but there is no great resistance when I kick. Is it engaging? Is it slipping? How does it work? Where should I look for further info? (I've had a look at the FAQ but that's for installing a k...

Dunney · Dunney

Last time I was out of my TTr (last year I am afraid to admit) I was being followed by a guy who used to work for Geraint Jones and at the UK Yamaha Off Road School. He observed that that my control would improve with a firmer front end. He said that at the Yam School they had some discs of 10mm thickness machi...

sammyttr · sammyttr

going home tonight the engine started making a small buzzing sound from the left hand side of the engine, don't know if I was because of low oil level or engine being hot. sorry to ask just reassuring myself

BaronGreenback · BaronGreenback

Just wanted to share this with you 93/94 owners. HERE It's a complete parts catalog .PDF created, at much expense to my sanity, over several hours of copy/past/resize/convert/import/export, from the Russian site Brian posted yesterday. It has been translated from Russian and Japanese into bro...

BaronGreenback · BaronGreenback

I bought this TTR from a mate, for £450, and since getting it home I have found a few faults and noticed missing parts. (Didn't stop me from taking it out and getting it dirty though) It's pretty hard to start due to the long throw of the kickstart lever, or possibly even low compression. It needs to be jus...

yamahaTT250R · yamahaTT250R

ok i want to know, you see the mark for TDC(TOP DEAD CENTRE) does it have to be 100% exactly on the mark on the bike as seen in picture 1, or can be be a little off as in picture 2? cause i could never get the camchain on without moving the mark off the exact position like 2mm off, does this matter? any help will b...

barra8 · barra8

Hey all, I am wondering whether a FMF 4Q muffler would be legal for a ttr250 2000 model in Qld,AUSTRALIA. ???? I have searched many sites and all the info i have got is that you cant modify the silencer or have over a certain decibel noise level (not too sure what that is). Does anyone knows th...

hertsrider · hertsrider

I've just been inspecting the bike before getting it out for the weekend and noticed a rather worrying fault.....somehow i've lost the rear shock absorber lower nut and the bolt has worked itself halfway back through and is hanging out the other side.. Not good i hear you say! Now my question is can i t...

KirSanycz · KirSanycz

Hi,comrades! Unfortunately, two problems arose with my TTR-250 RAID (1995 p.y.): 1) a gear-shift lever is off

is there any suitable non-original substitution for it (may be from XR or DR of smth similar)? 2) 100% of battery's charge is leaking out for a night... battery is new (3 months). What i...

barra8 · barra8

Good morning all, I have been trying the colour of the swing arm (alloy). After hours of searching i still am unsure, i know it's silver but unsure what silver. If someone (most likely Brian) can let me know what colour or the colour code for this paint i would be most greatf...

TTRfan · TTRfan

There have been a number of on-forum and offline queries about smoking engines in the last few days so I thought it might be worth putting my thoughts down here for you guys either to shoot down in flames or improve upon If the smoke is the only symptom and the engine isn’t rattling then there is a very goo...

spit · spit

Hi all A cheap set of tyres is available but they are 110/80/18 80/90/21 Would they fit? How would they affect the bike? Many thanks Mark Currently it has 120/90/90 & 90/90/21. It's a blue 02

mossproof · mossproof

Just done the best part of 700km on mountainous and rocky trails over 2 days on my '94 OE on The Vince - excellent "navigation enduro" in the Spanish Pyrenees organised by Austin Vince. Absolutely fantastic event and highly recommended... BUT, got a peculiar blue smoking problem that I ne...

TTRfan · TTRfan

Can someone with one of these tanks let me know if the TTR vent hose fits on the cap please? Cheers Brian

nwrider · nwrider

hey sometimes when i shift from 2-3 in low rpms the bike feels a little grumbly, like i am riding on really knobby tires, but once it hits a little higher rpms it goes away? any ideas. I change my oil quite a bit, after 300 miles, chain is lubed, and this problem happens just occasaionally. Also before i...

spit · spit

Hi Having a momentary wobble...thinking about a DRZ E...anyone know what they actually weigh & how much a blue TTR weighs? Cheers Mark

Richard · Richard

Ive got a rattle when i let off the throttle. Kind of sounds like some loose. is this common on a brand new bike? i have no idea what to look for either. anyone had same problem?

burton500 · burton500

Hi Re 1993 ttr Need to remove the flywheel to check the sprag clutch. Undone the centre bolt easy enough with an air wrench, but now need to pull the flywheel off. I read that the rear axle could be used but that started to take the thread off the axle without too much effort. So I'm trying to find a suitab...

vic · vic

i have been searching for a stainless steel engeinf bolt set. i have lloked a bit on the site and found nothing. so anyone have a lead on this or maybe where to get one thnx

Topic		Started By	Replies	Views	Last Post
	Engine surging (Preview) Hi need some help in finding out what's the problem.The engine starts and idles fine, but as i increase the revs the engine starts to surge as if it is short of fuel,this started quite suddenly and i'm stumped as to the cause. Things i have checked- Valve clearences Vacuum in petrol tank Air leak at carb...	tracker	17	1987	Oct 28, 2012 by barra8
	TTR Cylinder Head Fitting (Preview) I'm thinkig of buying a new complete head for my TTR. I've found one with a number of '4GY01', but on mine the number is '4GY00'. I cant find any info on what is the difference between the two. Will it fit ?	adimitrov	15	3110	Oct 24, 2012 by barra8
	Engine stand (inspired by Brian) (Preview) Had a bit of time to spare so i borrowed a mates frame for a few days. This is the result.... Still have to sand it back a little & give it another coat of cold Galvanized zinc paint. Was'nt as fussed as Brian but i think it turned out great. Now...what to tell my mate ps. i'm only joking about using a...	barra8	10	2585	Oct 22, 2012 by barra8
	Tyre pressures (Preview) Hi all, I'm fairly new to off road riding. My TTR is fitted with AC10 Michelins, and I don't ride it far on the road, its nearly all off road stuff. Could anyone give me a guide to the pressures I should be running? Cheers Lee	burton500	14	5884	Oct 21, 2012 by BM Steve
	Engine stand (Preview) I picked my engine stand up from the powder coaters today and it's looking good. Made from a redundant frame and some box profile it will make working on engines out of the frame a lot easier Just need a couple of lengths of rod to slot in to the engine bolt locations to hold the engine and I will be away!	TTRfan	12	2182	Oct 16, 2012 by barra8
	Brazing holes in fuel tanks. (Preview) Hi chaps, Is anyone familiar with brazing fuel tanks? I'm going to attempt this on my OE tank, as I wanted something a little more permanent than an adhesive filler. Apart from the obvious 'make sure there is no explosive residue' are there any important steps to follow? I didn't want to weld the tank at...	BaronGreenback	15	4655	Oct 15, 2012 by BaronGreenback
	Standard exhaust modification (Preview) I have a 1993 TTR250 OE, has all the normal things done but i would like a bit more noise as i ride mainly in traffic at the moment. Is there any information on baffle modification in the standard muffler, to get a bit more thump out of the old beast.	langley91	18	5200	Oct 14, 2012 by tracker
	Engine casing powder coat (Preview) Pretty much all of the powder coat has chipped off my outer engine casings, and was wondering if this could be a symptom of something more serious, like overheating or fatigue? If I cleaned and polished up the alloy would it be durable enough for the vigors of offroading, or am I going to need to paint/po...	BaronGreenback	4	1007	Oct 13, 2012 by barra8
	yz250f tail pipe (Preview) hey , will a yz250f tail pipe fit on to a ttr header pipe or do i have to mod it to fit?	krisfront1	1	593	Oct 12, 2012 by langley91
	Cannot find a new #4GY-Y2171-H0 COVER, SIDE 1 :( (Preview) Hello fellow TTR riders, I am having trouble with acquiring a ''new'' side gaurd for my blue 1999 TTR-250LC (blue gaurds) Any model from 1999-20012 will be right but i cannot seem to find anywhere to buy it I have acquired all my other OEM parts from www.power...	barra8	6	2075	Oct 12, 2012 by barra8
	cam timing (Preview) i am trying to time up my ttr after fitting new exhaust valves, i am not sure which mark on the flywheel is tdc, there are 2 marks, one is a single line and the other a double line, the workshop manual i have says turn the engine clockwise until you see the mark, do they mean clockwise if you are looking at the l...	raz1966	1	5171	Oct 12, 2012 by TTRfan
	kick starter (Preview) Hi all I have a blue 02. It won't start on the kick starter. It will return when I kick it & I can hear whirling inside but there is no great resistance when I kick. Is it engaging? Is it slipping? How does it work? Where should I look for further info? (I've had a look at the FAQ but that's for installing a k...	spit	7	1684	Oct 7, 2012 by barra8
	Front fork mod (Preview) Last time I was out of my TTr (last year I am afraid to admit) I was being followed by a guy who used to work for Geraint Jones and at the UK Yamaha Off Road School. He observed that that my control would improve with a firmer front end. He said that at the Yam School they had some discs of 10mm thickness machi...	Dunney	3	1310	Oct 6, 2012 by Haggis Hunter
	quiet engine buzzing (Preview) going home tonight the engine started making a small buzzing sound from the left hand side of the engine, don't know if I was because of low oil level or engine being hot. sorry to ask just reassuring myself	sammyttr	2	585	Sep 29, 2012 by sammyttr
	Translated parts catalogue for 1993/4 TTR250. (Preview) Just wanted to share this with you 93/94 owners. HERE It's a complete parts catalog .PDF created, at much expense to my sanity, over several hours of copy/past/resize/convert/import/export, from the Russian site Brian posted yesterday. It has been translated from Russian and Japanese into bro...	BaronGreenback	3	774	Sep 29, 2012 by BaronGreenback
	What's wrong with this picture? (Preview) I bought this TTR from a mate, for £450, and since getting it home I have found a few faults and noticed missing parts. (Didn't stop me from taking it out and getting it dirty though) It's pretty hard to start due to the long throw of the kickstart lever, or possibly even low compression. It needs to be jus...	BaronGreenback	4	1356	Sep 27, 2012 by BaronGreenback
	question about installing camshaft properly (Preview) ok i want to know, you see the mark for TDC(TOP DEAD CENTRE) does it have to be 100% exactly on the mark on the bike as seen in picture 1, or can be be a little off as in picture 2? cause i could never get the camchain on without moving the mark off the exact position like 2mm off, does this matter? any help will b...	yamahaTT250R	35	5907	Sep 26, 2012 by barra8
	FMF 4Q muffler legal for a ttr250 2000 model in Qld,AUSTRALIA??? (Preview) Hey all, I am wondering whether a FMF 4Q muffler would be legal for a ttr250 2000 model in Qld,AUSTRALIA. ???? I have searched many sites and all the info i have got is that you cant modify the silencer or have over a certain decibel noise level (not too sure what that is). Does anyone knows th...	barra8	3	1647	Sep 26, 2012 by barra8
	Rear shock - Lower Nut & Bolt (Preview) I've just been inspecting the bike before getting it out for the weekend and noticed a rather worrying fault.....somehow i've lost the rear shock absorber lower nut and the bolt has worked itself halfway back through and is hanging out the other side.. Not good i hear you say! Now my question is can i t...	hertsrider	9	1626	Sep 24, 2012 by barra8
	charge and compatibility? (Preview) Hi,comrades! Unfortunately, two problems arose with my TTR-250 RAID (1995 p.y.): 1) a gear-shift lever is off is there any suitable non-original substitution for it (may be from XR or DR of smth similar)? 2) 100% of battery's charge is leaking out for a night... battery is new (3 months). What i...	KirSanycz	2	664	Sep 22, 2012 by TTRfan
	what colour is a 99 swing arm? (Preview) Good morning all, I have been trying the colour of the swing arm (alloy). After hours of searching i still am unsure, i know it's silver but unsure what silver. If someone (most likely Brian) can let me know what colour or the colour code for this paint i would be most greatf...	barra8	13	3013	Sep 21, 2012 by barra8
	Is your TTR smoking? (Preview) There have been a number of on-forum and offline queries about smoking engines in the last few days so I thought it might be worth putting my thoughts down here for you guys either to shoot down in flames or improve upon If the smoke is the only symptom and the engine isn’t rattling then there is a very goo...	TTRfan	6	4903	Sep 20, 2012 by barra8
	110/80/18 80/90/21 (Preview) Hi all A cheap set of tyres is available but they are 110/80/18 80/90/21 Would they fit? How would they affect the bike? Many thanks Mark Currently it has 120/90/90 & 90/90/21. It's a blue 02	spit	3	1310	Sep 19, 2012 by colin13846
	Smokin' on "The Vince" (Preview) Just done the best part of 700km on mountainous and rocky trails over 2 days on my '94 OE on The Vince - excellent "navigation enduro" in the Spanish Pyrenees organised by Austin Vince. Absolutely fantastic event and highly recommended... BUT, got a peculiar blue smoking problem that I ne...	mossproof	4	1136	Sep 16, 2012 by TTRfan
	Acerbis 23 litre tank - vent hose on cap? (Preview) Can someone with one of these tanks let me know if the TTR vent hose fits on the cap please? Cheers Brian	TTRfan	2	892	Sep 16, 2012 by TTRfan
	grumbling (Preview) hey sometimes when i shift from 2-3 in low rpms the bike feels a little grumbly, like i am riding on really knobby tires, but once it hits a little higher rpms it goes away? any ideas. I change my oil quite a bit, after 300 miles, chain is lubed, and this problem happens just occasaionally. Also before i...	nwrider	10	2257	Sep 15, 2012 by barra8
	what do they weigh? (Preview) Hi Having a momentary wobble...thinking about a DRZ E...anyone know what they actually weigh & how much a blue TTR weighs? Cheers Mark	spit	11	9260	Sep 14, 2012 by TTRfan
	Rattle (Preview) Ive got a rattle when i let off the throttle. Kind of sounds like some loose. is this common on a brand new bike? i have no idea what to look for either. anyone had same problem?	Richard	7	1137	Sep 12, 2012 by Richard
	flywheel puller (Preview) Hi Re 1993 ttr Need to remove the flywheel to check the sprag clutch. Undone the centre bolt easy enough with an air wrench, but now need to pull the flywheel off. I read that the rear axle could be used but that started to take the thread off the axle without too much effort. So I'm trying to find a suitab...	burton500	5	2705	Sep 4, 2012 by Lin
	stainless steel engine case bolts? (Preview) i have been searching for a stainless steel engeinf bolt set. i have lloked a bit on the site and found nothing. so anyone have a lead on this or maybe where to get one thnx	vic	17	2458	Sep 4, 2012 by vic
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