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

MarkShelley · MarkShelley

Are the exhausts for the earlier white bikes the same as those fitted to the later blue bikes? I have a 2002 bike which has a non standard silencer which is annoyingly loud on the tarmac between the lanes and just want to know which ones I can look out for on ebay. I know they don`t come up very often. I may hav...

pekkal · pekkal

Ok. This is what happened. I got the TTR home. Took a short test ride. Did not have patience to warm up properly. Stalled the engine couple of times. Plug fouled and the engine refused to start. Rolled to garage. I replaced the plug. Good spark. Still wont start. Puffs and spits to carb. Removed airbox. C...

jasparach · jasparach

Does anyone know what material the lefthand generator/starter cover is made from, does anyone know if it can be welded where it cracks inside around the starter motor?

Darren · Darren

The bike has been cutting out in what I would call not to deep water..I have had it in much deeper water that this many times and with no probs. I went to my friends bike shop today and we went through checking a few things and on squirting wd40 around the carb manifold interface it started to cough and splut...

sammyttr · sammyttr

notiched abit of oil wheeping out the rocker cover gasket just at the front, where can I get the gasket as CMC Arnold said it was £44

for a rubber gasket, we did a absolutely freezing night just wondering if it could be the cold weather

Allweatherbiker · Allweatherbiker

Is there a way to do this? I would like to have a adjustable shock instead of the fixed one on my bike. Thanks Elt

burton500 · burton500

I'm after a spare gear change lever as back up. Not seen them come up on ebay for quite a while, but I guess there must be other levers with roughly the same length, and with the same spline. Anyone got any info? Cheers Lee

Allweatherbiker · Allweatherbiker

I I'm new to this fantastic forum & I need to know where I can buy a 150 main jet for my 4GY TTR....My local yam dealer is closed so need somewhere I can buy online...also a part number or someone that knows what jet type I need. I have a 147 in at the mo but a plug chop says it's running lean so want to try a 150...

ahunt · ahunt

Hi. I have just picked up a 1997 TT250R Open Enduro. It runs but is not in the best state of repair. I have done the basics ie oil, air filter, oil and plug. It starts and runs fine but the engine is a is a bit rattly for a few minutes after starting. It also blows a bit of white smoke when revved. Would that be v...

burton500 · burton500

Hi Anyone able to confirm the electric system on a 93 TTR up to the job of running heated grips? Cheers Lee

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...

Topic		Started By	Replies	Views	Last Post
	Exhaust compatibility (Preview) Are the exhausts for the earlier white bikes the same as those fitted to the later blue bikes? I have a 2002 bike which has a non standard silencer which is annoyingly loud on the tarmac between the lanes and just want to know which ones I can look out for on ebay. I know they don`t come up very often. I may hav...	MarkShelley	1	765	Nov 27, 2012 by TTRfan
	Exhaust cam timing badly wrong?! (Preview) Ok. This is what happened. I got the TTR home. Took a short test ride. Did not have patience to warm up properly. Stalled the engine couple of times. Plug fouled and the engine refused to start. Rolled to garage. I replaced the plug. Good spark. Still wont start. Puffs and spits to carb. Removed airbox. C...	pekkal	18	3892	Nov 17, 2012 by barra8
	Left hand generator cover material (Preview) Does anyone know what material the lefthand generator/starter cover is made from, does anyone know if it can be welded where it cracks inside around the starter motor?	jasparach	22	1837	Nov 13, 2012 by barra8
	rubber carb boot manifold to carb....OMG!!!! what a state (Preview) The bike has been cutting out in what I would call not to deep water..I have had it in much deeper water that this many times and with no probs. I went to my friends bike shop today and we went through checking a few things and on squirting wd40 around the carb manifold interface it started to cough and splut...	Darren	4	1685	Nov 12, 2012 by domski1
	rocker cover (Preview) notiched abit of oil wheeping out the rocker cover gasket just at the front, where can I get the gasket as CMC Arnold said it was £44 for a rubber gasket, we did a absolutely freezing night just wondering if it could be the cold weather	sammyttr	6	1116	Nov 10, 2012 by sammyttr
	Fitting a yellow shock to a raid? (Preview) Is there a way to do this? I would like to have a adjustable shock instead of the fixed one on my bike. Thanks Elt	Allweatherbiker	11	916	Nov 8, 2012 by TTRfan
	Gear change lever (Preview) I'm after a spare gear change lever as back up. Not seen them come up on ebay for quite a while, but I guess there must be other levers with roughly the same length, and with the same spline. Anyone got any info? Cheers Lee	burton500	1	563	Nov 7, 2012 by barra8
	I need a 150 main jet (Preview) I I'm new to this fantastic forum & I need to know where I can buy a 150 main jet for my 4GY TTR....My local yam dealer is closed so need somewhere I can buy online...also a part number or someone that knows what jet type I need. I have a 147 in at the mo but a plug chop says it's running lean so want to try a 150...	Allweatherbiker	12	1549	Nov 4, 2012 by barra8
	Engine advice (Preview) Hi. I have just picked up a 1997 TT250R Open Enduro. It runs but is not in the best state of repair. I have done the basics ie oil, air filter, oil and plug. It starts and runs fine but the engine is a is a bit rattly for a few minutes after starting. It also blows a bit of white smoke when revved. Would that be v...	ahunt	14	2015	Nov 2, 2012 by barra8
	Heated handlebar grips (Preview) Hi Anyone able to confirm the electric system on a 93 TTR up to the job of running heated grips? Cheers Lee	burton500	30	833	Oct 29, 2012 by Cubber
	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	2014	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	3151	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	2631	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	6025	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	2215	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	4685	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	5231	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	1016	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	607	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	2101	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	5335	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	1695	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	1331	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	598	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	785	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	1368	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	5973	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	1665	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	1639	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	676	Sep 22, 2012 by TTRfan
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