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

kjd1559 · kjd1559

Just rebuilt engine. reson bent exhast valves. fitted new piston rings, cam chain and sprockets, clean the carb Bought the bike cheap because it did not run. its running now but backfires and wont idel. is it up or down on the air screw to make it richer?

damn_oatesy · damn_oatesy

Hi all, I have been presented with the problem of having to take both a van and the TTR home for Christmas. I can't do the trailer bit because I have no space or tow ball and I have found an awesome tow ball rack that will carry a dirt bike but again no tow ball. Long story short I have measured up and if I r...

domski1 · domski1

http://www.ebay.co.uk/itm/390349672653?ssPageName=STRK:MEWAX...

sammyttr · sammyttr

This sounds like a daft question but how the hell do I get the front sprocket cover off? Can't seem to get mine off. If you got a manual picture would be helpful

Paul C · Paul C

After a collision with a tree (before my ownership) what I believe is called the clutch perch is held on by a wing and a prayer, and a bit of gaffer tape. The lever is fine, it's just the bit which clamps around the bars and holds the mirror. The lug which holds the mirror is broken and the whole assembly is pr...

domski1 · domski1

Ok, I know there could maybe be many reasons for this but I will just get a few opinions in because at the moment I don't really have time to look at this but its bugging me! Basically when the bike has been left for over two days its s right struggle to start, just spins over and eventually fires up as long a...

pioter13 · pioter13

Hi Everyone Bought my 95 TT250R Raid about month ago and after few days of use i have realised that over longer journeys with medium/hard front braking my front calliper gets very hot and start dragging So i have took the front calliper apart and cleaned the seals(they were very dirty) and the groves w...

250Tom · 250Tom

seen it on here when searched google, dont mean to keep writing questions that have already been answered but couldnt find out what i needed to when i looked.. soo my rocker cover is leaking and cant find a gasket anywhere?.. my bikes a 1993 im guessing the newer models would still fit? but does anyone kn...

Vancor88 · Vancor88

I came across a YZ 250 with a blown engine. I can get it for $500. Does anyone know if the TTR 250 motor would fit. I'm thinking the TTR engine reliability + the YZ suspension (with the aliminum frame - 40-50lbs lighter) would be a great bike. Anyone know if it will work. Brian your thoughts would be appr...

rollingstone14 · rollingstone14

I just got my ttr 250, don't know tons, but I am a bit savvy to mechanics. So I picked up Penzoil Outdoor (For smaller engines) motercycle engine oil. 20W-50. Is this type of oil recommended? Will it "Work"?

TDVT · TDVT

I have been looking through the parts diagrams for my '04 US-spec TTR & am unable to find the tool kit (mentioned in the AU manual I have) which leads me to belive that the bikes didn't come with a kit as they were not sold as street-legal machines here. But I would like to carry some tools & since I s...

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?

Topic		Started By	Replies	Views	Last Post
	Back fires (Preview) Just rebuilt engine. reson bent exhast valves. fitted new piston rings, cam chain and sprockets, clean the carb Bought the bike cheap because it did not run. its running now but backfires and wont idel. is it up or down on the air screw to make it richer?	kjd1559	17	2454	Dec 22, 2012 by barra8
	Removing Front Forks. (Preview) Hi all, I have been presented with the problem of having to take both a van and the TTR home for Christmas. I can't do the trailer bit because I have no space or tow ball and I have found an awesome tow ball rack that will carry a dirt bike but again no tow ball. Long story short I have measured up and if I r...	damn_oatesy	8	1712	Dec 21, 2012 by TTRfan
	Fitting an on/off light switch (Preview) http://www.ebay.co.uk/itm/390349672653?ssPageName=STRK:MEWAX...	domski1	13	3912	Dec 14, 2012 by barra8
	Front sprocket cover - sounds like a daft question (Preview) This sounds like a daft question but how the hell do I get the front sprocket cover off? Can't seem to get mine off. If you got a manual picture would be helpful	sammyttr	15	2015	Dec 9, 2012 by sammyttr
	Clutch "perch" (Preview) After a collision with a tree (before my ownership) what I believe is called the clutch perch is held on by a wing and a prayer, and a bit of gaffer tape. The lever is fine, it's just the bit which clamps around the bars and holds the mirror. The lug which holds the mirror is broken and the whole assembly is pr...	Paul C	1	1094	Dec 8, 2012 by TTRfan
	Poor to start when left for a few days??? (Preview) Ok, I know there could maybe be many reasons for this but I will just get a few opinions in because at the moment I don't really have time to look at this but its bugging me! Basically when the bike has been left for over two days its s right struggle to start, just spins over and eventually fires up as long a...	domski1	14	2169	Dec 8, 2012 by barra8
	Front caliper dragging / sticking caliper (Preview) Hi Everyone Bought my 95 TT250R Raid about month ago and after few days of use i have realised that over longer journeys with medium/hard front braking my front calliper gets very hot and start dragging So i have took the front calliper apart and cleaned the seals(they were very dirty) and the groves w...	pioter13	18	2711	Dec 6, 2012 by pioter13
	Rocker cover leaking? (Preview) seen it on here when searched google, dont mean to keep writing questions that have already been answered but couldnt find out what i needed to when i looked.. soo my rocker cover is leaking and cant find a gasket anywhere?.. my bikes a 1993 im guessing the newer models would still fit? but does anyone kn...	250Tom	2	927	Dec 5, 2012 by barra8
	TTR 250 motor in a YZ 250 Frame (Preview) I came across a YZ 250 with a blown engine. I can get it for $500. Does anyone know if the TTR 250 motor would fit. I'm thinking the TTR engine reliability + the YZ suspension (with the aliminum frame - 40-50lbs lighter) would be a great bike. Anyone know if it will work. Brian your thoughts would be appr...	Vancor88	4	4230	Nov 30, 2012 by TDVT
	Oil types (Preview) I just got my ttr 250, don't know tons, but I am a bit savvy to mechanics. So I picked up Penzoil Outdoor (For smaller engines) motercycle engine oil. 20W-50. Is this type of oil recommended? Will it "Work"?	rollingstone14	4	14415	Nov 28, 2012 by barra8
	TTR Tool kit box/pouch suggestions? (Preview) I have been looking through the parts diagrams for my '04 US-spec TTR & am unable to find the tool kit (mentioned in the AU manual I have) which leads me to belive that the bikes didn't come with a kit as they were not sold as street-legal machines here. But I would like to carry some tools & since I s...	TDVT	3	2537	Nov 27, 2012 by alexbarb
	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	1080	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	5806	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	2100	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	1948	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	1386	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	1161	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	807	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	1775	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	2245	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	1349	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	2695	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	3577	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	3008	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	7432	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	2568	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	5064	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	5587	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	1285	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	826	Oct 12, 2012 by langley91
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