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

BM Steve · BM Steve

On the way home the speedo started playing up, became erratic then stopped all together, stripped it down today, checked the speedo unit first with a cordless drill, worked perfectly, so cleaned the cable housing the cable and regreased the lot, next removed the wheel and removed the drive unit, pul...

davecambo · davecambo

would popping on deceleration indicate too lean an idle screw mixture? i come to this due to it being only when i close the throttle when engine braking, so jetting wouldnt be anything to do with it would it? havent noticed popping or backfiring under any other circumstance. the bike idels well, start...

sable · sable

Hi all ! I have to change left crankcase cover, but i can't find a new part with partnumber 4GY-15411-01-00 . I have found a lot suggestios of 4GY-15411-02-00 in the internet shops. So i have a question : are these parts interchangeable ? Thanks, Dmitriy

Matt G · Matt G

Hi, I have to shrink the TTR 250 workshop manual to 25MB or less so I can email it. Does anyone know how? Thank you.

pedrosan · pedrosan

I have taken the swingarm off to repair the scratches in it caused by a work out chain slider. Whilst its off, and since the bit I've repaired needs painting anyway, I thought I would paint the swingarm. To do this I have tried to take the suspension linkage off but can't get it to budge. I checked the f...

MarkShelley · MarkShelley

I have partially stripped down my `new` 2003 bike today to get an idea how it all goes together. While I was at it I cleaned all the electrical connectors and filled them with Dielectric grease to keep out moisture in the future. The spark plug recess had a lot of dry mud in it and it took a fir bit of fiddling...

sammyttr · sammyttr

My little townmate or T80 has alittle bit of an on going problem the poor old girl, The timing chain has been ratteling and so i changed the spring tensioner as it was old and it is abit quiter but still ratteling and when i was adjusting it was going from very tight then moved it abit more and it went quite sl...

davecambo · davecambo

These two combinations are almost identical, but even with a combination that IS identical, could there be some differences at high speed? For example, would the 14 front resuce revs at 100km/h or not. Aain, this is for a combination that is identical say around 4:1 Jusy trying to work out what...

shack · shack

Hi All, headlight on my Raid doesn't want to play, I've checked and changed bulb but still no joy, looking through the owners/ service manual etc can only locate 1 fuse (main) is this right? everything else works so am I answering my own question by thinking something like a dodgy connection? and have t...

hertsrider · hertsrider

Morning all, Bit of novice help required here if possible? The biting point on my clutch lever is a bit too far out and i want to adjust it...but i'm not sure how. There are quite a few little nuts and adjusters on the cable etc (longer cables fitted to my bike as bar risers are fitted too). Can anyone assist...

hertsrider · hertsrider

Morning all, I'm currently running with 14/44 sprockets on my Raid but when i bought it, it came with a Renthal 52 tooth sprocket and chain to go with it. What will i notice putting the 52 sprocket on? How will the bike differ? FYI - i only do 'lane' riding with a bit of road to link up the lanes...no commutin...

Lightweight · Lightweight

Having confusing problems with my '94 Raid. If I charge the battery up and put it on the bike the bike will start and run perfectly happily. However most times (but not every time) after about 1/2 hour the battery will be flat but the motor will still run as long as I don't stop it (then it must be bump starte...

davecambo · davecambo

Im after a gps. can anyone recommend a model that has roads, fire trails etc and the option to add maps downloaded? doesnt have to be colour but that would be nice, and im after the cheapest one that will have the above features to use when exploring new areas.

snailspacejase · snailspacejase

Has anyone out there in TTR land opened up a standard silencer? I'm interested to know what's in there, ie a cat. I quite fancy getting hold of a second hand one and taking the grinder/mig to it.

pedrosan · pedrosan

Hi chaps, I have got a leaky something on my engine, front right hand side possibly top of the crank case or similar. I've taken some photos, since them I have cleaned round it to try and identify where it seeps from in future, however I just wondered whether by looking at the pictures anyone could have a...

davecambo · davecambo

Just installed a number 3, 5.5L Nomad Tank. It is fantastic. It came complete with mounting bolts, rubber straps, fuel tap, fuel filter, fuel hoses and T piece to add fuel line into main line. All parts look well made, and fees very strong. I found it quite hard to get the hose squeezed on to the T piece,...

davecambo · davecambo

can the top of the suspension be on an angle like this? mine is a little. is this ok?

sammyttr · sammyttr

what hammerite paint best suit the frames colour and should i sand it down before painting sorry to be a pain and the rear shock rubber at the bottom is split is this an issue. -- Edited by sammyttr on Tuesday 28th of February 2012 06:06:22 PM

davecambo · davecambo

hey once a bike is jetted correctly for the particular elevation it was intended, a difference of + or - how many meters will be ok for that jetting? anyone know? i live at 700m above sea level. If i was to say go to the coast at sea level, would i need to rejet, or would it simply run richer and still ride ok. sa...

davecambo · davecambo

so i bought a tail light on ebay with a clear section down the bottom to shine some yellow light on the rear fender. i bought this so i could get rid of the black tail section and just put the license place on the back fender. the idea is that there is a globe that shines through the clear and lights up the plate...

matteo · matteo

Hello TTR's, does anyone have a copy of a wiring diagram with turn signals, brake lights, high/ low beams etc . I could see or copy for a 250TTR - Im making my 2006 road legal. Please let me know, Matt

Cubber · Cubber

I was out riding in sludge and slime on Saturday with four other Devon TRF members. In excess of 85 miles was done in five hours - low average I know but the conditions were special. After lunch it decided to rain quite heavily and it continued for the rest of the day. We all got a little damp under the collar...

oshanrube · oshanrube

i brought a pair of front brakepads few days back when i tried to install them i realized that they are a little different from the ones which are already installed for example i couldnt find a camera to get a pic so i downloaded a pic frm ebay and edited. but heres what has happend. assume the one on the le...

tracker · tracker

Brian the part number you give for the washer is: 1k-25149-00-00 could you tell me what other model it is off,so i can try my local dealer. thanks

jdub_04 · jdub_04

Ok so first i should say hello as this is my first post and i will thank you all for any help in advance. The Run Down: I have a 2006 ttr 250 that has been sitting in the garage for about a year without being started . I knew that i was going to have some issues when trying to get it back running. I emptied the gas ta...

davecambo · davecambo

Wondering if anyone has noticed better milage with different fuels. Here in australia we have 91, 95 and 98 fuel but they all react differently. On my ducati 98 gives awesome power but i actually get better milage from the 95. I wonder if the 98 ive been running in the trr is doing the same. Anyone compar...

sammyttr · sammyttr

Hello, Just wondering where the oil filter is placed on the later ttrs and is it easily accesable.

dan-reeves · dan-reeves

Hello I removed my seat today and found a whole lot of mess, the bottom of the air filter housing was just thick sludge and the tube that drains all the excess water was block solid I have included a photo of the top of the housing which doesn't look right (like something has been removed) I think its like...

davecambo · davecambo

as probably the cheapest option for lowering by about an inch, how exactly would one shave the seat, and would it be possible to do it and retain the original cover, or is that buggered onced ripped off. oh yeah, i mean doing it ones self, obviously i could take it to a motor trimmors but then it wouldnt be t...

davecambo · davecambo

http://www.ebay.com/itm/Derestrict-CDI-YAMAHA-TTR250-4GY-Ignitor-Ignition-/280698833419?pt=LH_DefaultDomain_100&vxp=mtr&hash=item415af44a0b

Topic		Started By	Replies	Views	Last Post
	Speedo Died on the W/end (Preview) On the way home the speedo started playing up, became erratic then stopped all together, stripped it down today, checked the speedo unit first with a cordless drill, worked perfectly, so cleaned the cable housing the cable and regreased the lot, next removed the wheel and removed the drive unit, pul...	BM Steve	7	901	Mar 22, 2012 by MarkShelley
	popping on decelleration (Preview) would popping on deceleration indicate too lean an idle screw mixture? i come to this due to it being only when i close the throttle when engine braking, so jetting wouldnt be anything to do with it would it? havent noticed popping or backfiring under any other circumstance. the bike idels well, start...	davecambo	11	1948	Mar 21, 2012 by BM Steve
	Crankcase covers (Preview) Hi all ! I have to change left crankcase cover, but i can't find a new part with partnumber 4GY-15411-01-00 . I have found a lot suggestios of 4GY-15411-02-00 in the internet shops. So i have a question : are these parts interchangeable ? Thanks, Dmitriy	sable	6	983	Mar 21, 2012 by sable
	Ho do I make a 29MB PDF smaller? (Preview) Hi, I have to shrink the TTR 250 workshop manual to 25MB or less so I can email it. Does anyone know how? Thank you.	Matt G	7	1187	Mar 21, 2012 by Matt G
	Swingarm disassembly (Preview) I have taken the swingarm off to repair the scratches in it caused by a work out chain slider. Whilst its off, and since the bit I've repaired needs painting anyway, I thought I would paint the swingarm. To do this I have tried to take the suspension linkage off but can't get it to budge. I checked the f...	pedrosan	2	1221	Mar 21, 2012 by pedrosan
	Mud in spark plug recess (Preview) I have partially stripped down my `new` 2003 bike today to get an idea how it all goes together. While I was at it I cleaned all the electrical connectors and filled them with Dielectric grease to keep out moisture in the future. The spark plug recess had a lot of dry mud in it and it took a fir bit of fiddling...	MarkShelley	4	1335	Mar 17, 2012 by Cubber
	This is abit off topic (Preview) My little townmate or T80 has alittle bit of an on going problem the poor old girl, The timing chain has been ratteling and so i changed the spring tensioner as it was old and it is abit quiter but still ratteling and when i was adjusting it was going from very tight then moved it abit more and it went quite sl...	sammyttr	8	1523	Mar 13, 2012 by MarkShelley
	13/48 vs 14/52 (Preview) These two combinations are almost identical, but even with a combination that IS identical, could there be some differences at high speed? For example, would the 14 front resuce revs at 100km/h or not. Aain, this is for a combination that is identical say around 4:1 Jusy trying to work out what...	davecambo	5	1688	Mar 13, 2012 by rattlyolddt
	Quick headlight/ fuse question (Preview) Hi All, headlight on my Raid doesn't want to play, I've checked and changed bulb but still no joy, looking through the owners/ service manual etc can only locate 1 fuse (main) is this right? everything else works so am I answering my own question by thinking something like a dodgy connection? and have t...	shack	2	1141	Mar 11, 2012 by shack
	Biting point (Preview) Morning all, Bit of novice help required here if possible? The biting point on my clutch lever is a bit too far out and i want to adjust it...but i'm not sure how. There are quite a few little nuts and adjusters on the cable etc (longer cables fitted to my bike as bar risers are fitted too). Can anyone assist...	hertsrider	2	803	Mar 7, 2012 by hertsrider
	Sprocket changes - effects? (Preview) Morning all, I'm currently running with 14/44 sprockets on my Raid but when i bought it, it came with a Renthal 52 tooth sprocket and chain to go with it. What will i notice putting the 52 sprocket on? How will the bike differ? FYI - i only do 'lane' riding with a bit of road to link up the lanes...no commutin...	hertsrider	2	834	Mar 6, 2012 by davecambo
	Elastrickery problem. (Preview) Having confusing problems with my '94 Raid. If I charge the battery up and put it on the bike the bike will start and run perfectly happily. However most times (but not every time) after about 1/2 hour the battery will be flat but the motor will still run as long as I don't stop it (then it must be bump starte...	Lightweight	2	1008	Mar 5, 2012 by BM Steve
	which GPS to buy (Preview) Im after a gps. can anyone recommend a model that has roads, fire trails etc and the option to add maps downloaded? doesnt have to be colour but that would be nice, and im after the cheapest one that will have the above features to use when exploring new areas.	davecambo	1	804	Mar 5, 2012 by BM Steve
	Modifying a standard exhaust. (Preview) Has anyone out there in TTR land opened up a standard silencer? I'm interested to know what's in there, ie a cat. I quite fancy getting hold of a second hand one and taking the grinder/mig to it.	snailspacejase	4	1179	Mar 5, 2012 by TTRfan
	Oil Leak around the front right hand side of the engine (Preview) Hi chaps, I have got a leaky something on my engine, front right hand side possibly top of the crank case or similar. I've taken some photos, since them I have cleaned round it to try and identify where it seeps from in future, however I just wondered whether by looking at the pictures anyone could have a...	pedrosan	8	3275	Mar 5, 2012 by pedrosan
	Nomad Tanks (Preview) Just installed a number 3, 5.5L Nomad Tank. It is fantastic. It came complete with mounting bolts, rubber straps, fuel tap, fuel filter, fuel hoses and T piece to add fuel line into main line. All parts look well made, and fees very strong. I found it quite hard to get the hose squeezed on to the T piece,...	davecambo	7	1647	Mar 4, 2012 by Aidan
	can this be on an angle? anyone?? please (Preview) can the top of the suspension be on an angle like this? mine is a little. is this ok?	davecambo	2	965	Feb 29, 2012 by TTRfan
	hammerite (Preview) what hammerite paint best suit the frames colour and should i sand it down before painting sorry to be a pain and the rear shock rubber at the bottom is split is this an issue. -- Edited by sammyttr on Tuesday 28th of February 2012 06:06:22 PM	sammyttr	2	880	Feb 29, 2012 by sammyttr
	elevation (Preview) hey once a bike is jetted correctly for the particular elevation it was intended, a difference of + or - how many meters will be ok for that jetting? anyone know? i live at 700m above sea level. If i was to say go to the coast at sea level, would i need to rejet, or would it simply run richer and still ride ok. sa...	davecambo	11	1221	Feb 27, 2012 by davecambo
	tail light with clear part (Preview) so i bought a tail light on ebay with a clear section down the bottom to shine some yellow light on the rear fender. i bought this so i could get rid of the black tail section and just put the license place on the back fender. the idea is that there is a globe that shines through the clear and lights up the plate...	davecambo	1	788	Feb 27, 2012 by davecambo
	Wiring Diagram - HELP!!!! (Preview) Hello TTR's, does anyone have a copy of a wiring diagram with turn signals, brake lights, high/ low beams etc . I could see or copy for a 250TTR - Im making my 2006 road legal. Please let me know, Matt	matteo	2	2197	Feb 27, 2012 by Chris W
	Servicing (Preview) I was out riding in sludge and slime on Saturday with four other Devon TRF members. In excess of 85 miles was done in five hours - low average I know but the conditions were special. After lunch it decided to rain quite heavily and it continued for the rest of the day. We all got a little damp under the collar...	Cubber	10	2085	Feb 27, 2012 by pedrosan
	Front brake pads (Preview) i brought a pair of front brakepads few days back when i tried to install them i realized that they are a little different from the ones which are already installed for example i couldnt find a camera to get a pic so i downloaded a pic frm ebay and edited. but heres what has happend. assume the one on the le...	oshanrube	2	1935	Feb 25, 2012 by oshanrube
	speedo drive washer (Preview) Brian the part number you give for the washer is: 1k-25149-00-00 could you tell me what other model it is off,so i can try my local dealer. thanks	tracker	2	892	Feb 25, 2012 by tracker
	Please Help 06' ttr 250 Not starting (Preview) Ok so first i should say hello as this is my first post and i will thank you all for any help in advance. The Run Down: I have a 2006 ttr 250 that has been sitting in the garage for about a year without being started . I knew that i was going to have some issues when trying to get it back running. I emptied the gas ta...	jdub_04	7	1786	Feb 23, 2012 by jdub_04
	Fuel (Preview) Wondering if anyone has noticed better milage with different fuels. Here in australia we have 91, 95 and 98 fuel but they all react differently. On my ducati 98 gives awesome power but i actually get better milage from the 95. I wonder if the 98 ive been running in the trr is doing the same. Anyone compar...	davecambo	3	1162	Feb 23, 2012 by davecambo
	Engine Oil for the air filter- just checking (Preview) Hello, Just wondering where the oil filter is placed on the later ttrs and is it easily accesable.	sammyttr	38	15250	Feb 22, 2012 by sammyttr
	Air filter/housing (Preview) Hello I removed my seat today and found a whole lot of mess, the bottom of the air filter housing was just thick sludge and the tube that drains all the excess water was block solid I have included a photo of the top of the housing which doesn't look right (like something has been removed) I think its like...	dan-reeves	11	2614	Feb 22, 2012 by dan-reeves
	shaving the seat (Preview) as probably the cheapest option for lowering by about an inch, how exactly would one shave the seat, and would it be possible to do it and retain the original cover, or is that buggered onced ripped off. oh yeah, i mean doing it ones self, obviously i could take it to a motor trimmors but then it wouldnt be t...	davecambo	3	994	Feb 20, 2012 by davecambo
	what is this? (Preview) http://www.ebay.com/itm/Derestrict-CDI-YAMAHA-TTR250-4GY-Ignitor-Ignition-/280698833419?pt=LH_DefaultDomain_100&vxp=mtr&hash=item415af44a0b	davecambo	3	1099	Feb 19, 2012 by Cubber
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