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

een705 · een705

I have read loads about sprag and didnt want to hijack the one below. My bike makes a clunk its not very loud but its there so I did some reading on here and looked behing the cover near the starter. The idler gear is damaged but the starter should be okay. I have added a picture of gears but what do you people r...

denisgavriloff · denisgavriloff

I have a 2002 TTR250. It has been maintained well throughout the last couple of months since I bought it. Last Saturday morning, I tried to start it up with the choke and it started right up. Couple minutes later, however, it died and wouldn't start up again. I decided that it might be the carb that need...

leigh · leigh

Hey peeps Anyone had the experience of the aluminium with o-ring blanking plug leaking? I think I put it in about a year ago. I guess I'll pull it out and clean it and maybe use some sealant as well this time? Cheers Leigh.

TTRfan · TTRfan

Every day is a school day! Although it was possible to adjust the clutch on Steve's 350 build to get the pointer in the correct position (see here), the bolt did seem a long way in. Shoulda realised that the bolt was from a 6-plate clutch and Steve was upgrading to a 7-plate which, ideally, requires a long...

tom13 · tom13

Google translator Excuse me, what is it? the photo has turned over -- Edited by tom13 on Sunday 14th of October 2018 06:19:16 PM

Gavinm · Gavinm

Hi All, New to the forum.. hope you're all well. I recently picked up a 2006 TTR250. It was not running but I've managed to get her going. There's a strange problem that I can't work out. When I start it cold, with the choke on she runs quickly to high revs then settles down to lower RPM after a few seconds. ...

mallywoods · mallywoods

Hello all, my 1999 250 TTR Enduro is brilliant and love it only used to go to the shops on dry days.only 8800kms. Reading posts on this page it appears that to hear a clunk when the engine is turned of is a sign that a sprag clutch is on its way out. My bike starts and runs fine. Do I have a problem???? My only s...

ttboof · ttboof

When putting my bike back together I found my clamp on the air filter side of the carby wasn't clamping tight enough. To keep the original clamp I cut a cable tie (flat end ) so it was a neat fit around the tube then put the clamp back on over the cut down tie end Result was a good tight clamp again -- Edited...

Ross · Ross

Hi All My bike has developed a pronounced squeak when the rear suspension is compressed and rebounds and i am wondering what to do I'm am trying to do all my own maintenance but am learning slowly i have looked at the links on suspension but not sure where to start!? Any help would be gratefully received I...

robs · robs

Hey, Anyone know how to disconnect the front brake light connector from the master cylinder mount? I've pulled back the rubber to reveal some kind of plastic that looks like it encapsulates the spade connectors.. was getting dark so didn't get a chance to faff about trying to get it off but there didn'...

TTRfan · TTRfan

I found a great tip from Lin on an old thread of his which is to get yourself a Pentel White 100WM marker pen. About £4 inc p&p from eBay. An example here. Marking some parts before disassembly can be very helpful come the rebuild. The ink will survive extremely well and is resistant to oil and grease...

een705 · een705

Not been on the forum long and hope someone can help...my clutch is slipping and having read the threads checked the adjustment, changed the oil and measured the plates which are reading 2.9mm-3mm put it all back together and its still slipping. Im sure the adjustment of the arm is in the right place bu...

tom13 · tom13

Google Translate- Good morning. I want to unscrew the oil filter cover and here is the poverty. 1 Allen screw is round inside. The second one is for a screwdriver and the thread in the motor is broken. A bit of a problem. What advice is there? What dimensions do the original screws have? I advised mysel...

650Katman · 650Katman

Hi all, I got my ttr oe last Friday. All was well. I discovered original air filter was not all there. About a 1/4 of it had fell apart and was mostly crumbled in the air box. New air filter fitted after cleaning crud out of airbox. On my way home from work Friday night bike slowed and spluttered, time to go to...

leigh · leigh

Just thought I'd post this here, I replaced my bars a while ago with Protaper - Seven Eighths - YZ high bend - they are exactly the same as standard but much stronger Alloy ones. In case its handy for someone else I thought I'd post it up. Cheers Leigh.

Rydasc6102 · Rydasc6102

I was doing a check over my bike and it looks like the previous owner put the chain roller in the wrong spot when installing the skid plates. Am I correct? Do I just unbolt it and put it below or are there washers That could be missing?

pug · pug

New battery time so she's dying is it worth going to lithium ion or sticking to sealed lead/glass matt the bike is running a Motobatt yellow mb7u the Lithium is about £20 more is it worth it the Motobatt has lasted well I put it on when I got the bike so around 4 years also how do the Lithium battery's play bal...

Gavinm · Gavinm

Guys, I'm losing oil from a gaskey under the head on the front left hand side of the engine (near the exhaust outlet).. The bike had loose bolts all over it when I got it and I'm thinking even the engine studs could be loose. It it advisable to crank on the bolt? I've got a torque wrench but not sure the setti...

Rydasc6102 · Rydasc6102

i was out riding today and I took a decent fall on stone. My guard poped off and it looks like the clutch perch is pulling apart. I haven't looked closely at it before and dont know if it is bent or broken. Any of you know?

Rydasc6102 · Rydasc6102

is lithium grease safe to use on the ttr250 chain. I work with several people who use lithium grease on their chains because it is so cheap. Would this harm the chain since it is an o-ring chain, does it work well, does it last long on the trails? Thanks

richief · richief

My son finally got around to telling me the bike ”wont stay running”. Sure enough only runs on choke and when i was fiddling with throttle and choke while on ks, a partial donut fell out. (Try and post Pic) I was thinking exhaust pipe gasket @ cylinder but looked for images online and part looks like coppe...

TTRfan · TTRfan

Wow - I never cease to be amazed at the resources avaialble via the interweb! I was looking on YouTube for info on replacing a MAF sensor on a Jag and saw this video on the sidebar:- It also alerted me to a tool that I haven't come across before ca...

BikerMat · BikerMat

Hi totally ttr, I am just about ready to order a bunch of bits for my 1993 Open enduro. The list is quite long and I'm trying to find replacement parts for my kickstarter, I have already found a ball bearing and spring. But I need a screw to replace mine that has sheared at some point. The screw on the kicksta...

Rooster · Rooster

I was looking into purchasing a new shock before I sent mine off for rebuild and found this in the process. It's a different part number than the OE shock but looks identical. Figured I throw this out there for those that are dealing with shock issues. https://www.cmsnl.com/products/shock-absor...

Rooster · Rooster

I'm thinking of changing out the friction plates on my clutch. I'm pretty sure but not positive that the clutch plates for the WR250 are the same as the ones in the blue TTRs. Can anyone confirm that this is the case?

Dorian · Dorian

silly question i have a 1993 TTR 250 .. when I put hazards on all four indicators blink correct. when I use turn signals right side works fine ,bet when I switch to left side indicators blink fast ??? put work fine. Any ideas ???? thanks

chrishughes1989 · chrishughes1989

Hi my ttr rides ok but feels like I'm thrashing it at 55mph my rear sprocket is a 49 and my front is 13. I would like a little more top end speed for road use but would like it to still have power when needed too. What would you guy recommend? What are other people running on?

Rydasc6102 · Rydasc6102

I want to remove all of the old grease from the front wheel gear unit and replace it with new grease, but I don't want to damage it as it is nearly $100 from yamaha. how should I go about cleaning it out? Thanks.

Rydasc6102 · Rydasc6102

im looking into getting new side covers from a friend and he painted them. Would paint stripper damage the plastic or would it be fine? Also could power washing them take off the paint? Thanks.

TTRfan · TTRfan

Difficulty is an understatement - it seems to have taken up most of my afternoon Flywheels can be stubborn but I haven't come across one before where it seemed like it was welded on! I used a combination of flywheel puller, heat, rattle gun and a generous helping of Irish screwdriver and it eventually...

Topic		Started By	Replies	Views	Last Post
	Another sprag and idler gears (Preview) I have read loads about sprag and didnt want to hijack the one below. My bike makes a clunk its not very loud but its there so I did some reading on here and looked behing the cover near the starter. The idler gear is damaged but the starter should be okay. I have added a picture of gears but what do you people r...	een705	11	1362	Oct 20, 2018 by een705
	Randomly stopped starting carburetor no start up (Preview) I have a 2002 TTR250. It has been maintained well throughout the last couple of months since I bought it. Last Saturday morning, I tried to start it up with the choke and it started right up. Couple minutes later, however, it died and wouldn't start up again. I decided that it might be the carb that need...	denisgavriloff	9	1749	Oct 19, 2018 by ttboof
	Decompressor blanking plug now weeping (Preview) Hey peeps Anyone had the experience of the aluminium with o-ring blanking plug leaking? I think I put it in about a year ago. I guess I'll pull it out and clean it and maybe use some sealant as well this time? Cheers Leigh.	leigh	9	1615	Oct 18, 2018 by ttr steve
	Clutch adjuster - bolt lengths (Preview) Every day is a school day! Although it was possible to adjust the clutch on Steve's 350 build to get the pointer in the correct position (see here), the bolt did seem a long way in. Shoulda realised that the bolt was from a 6-plate clutch and Steve was upgrading to a 7-plate which, ideally, requires a long...	TTRfan	1	1013	Oct 15, 2018 by mossproof
	what is it (Preview) Google translator Excuse me, what is it? the photo has turned over -- Edited by tom13 on Sunday 14th of October 2018 06:19:16 PM	tom13	2	803	Oct 14, 2018 by tom13
	Strange running! (Preview) Hi All, New to the forum.. hope you're all well. I recently picked up a 2006 TTR250. It was not running but I've managed to get her going. There's a strange problem that I can't work out. When I start it cold, with the choke on she runs quickly to high revs then settles down to lower RPM after a few seconds. ...	Gavinm	9	1139	Oct 14, 2018 by ttboof
	Clunk noise when engine is switched off. (Preview) Hello all, my 1999 250 TTR Enduro is brilliant and love it only used to go to the shops on dry days.only 8800kms. Reading posts on this page it appears that to hear a clunk when the engine is turned of is a sign that a sprag clutch is on its way out. My bike starts and runs fine. Do I have a problem???? My only s...	mallywoods	3	1455	Oct 12, 2018 by een705
	Carby clamp bodge (Preview) When putting my bike back together I found my clamp on the air filter side of the carby wasn't clamping tight enough. To keep the original clamp I cut a cable tie (flat end ) so it was a neat fit around the tube then put the clamp back on over the cut down tie end Result was a good tight clamp again -- Edited...	ttboof	1	983	Oct 12, 2018 by TTRfan
	Squeaky Suspension (Preview) Hi All My bike has developed a pronounced squeak when the rear suspension is compressed and rebounds and i am wondering what to do I'm am trying to do all my own maintenance but am learning slowly i have looked at the links on suspension but not sure where to start!? Any help would be gratefully received I...	Ross	7	1014	Oct 10, 2018 by ttr steve
	Disconnecting brake light switch on front brake lever housing.. (Preview) Hey, Anyone know how to disconnect the front brake light connector from the master cylinder mount? I've pulled back the rubber to reveal some kind of plastic that looks like it encapsulates the spade connectors.. was getting dark so didn't get a chance to faff about trying to get it off but there didn'...	robs	8	1295	Oct 10, 2018 by robs
	White marker pens to assist in re-assembly of parts (Preview) I found a great tip from Lin on an old thread of his which is to get yourself a Pentel White 100WM marker pen. About £4 inc p&p from eBay. An example here. Marking some parts before disassembly can be very helpful come the rebuild. The ink will survive extremely well and is resistant to oil and grease...	TTRfan	1	1074	Oct 10, 2018 by robs
	clutch slip (Preview) Not been on the forum long and hope someone can help...my clutch is slipping and having read the threads checked the adjustment, changed the oil and measured the plates which are reading 2.9mm-3mm put it all back together and its still slipping. Im sure the adjustment of the arm is in the right place bu...	een705	5	1225	Oct 9, 2018 by een705
	I want to unscrew the oil filter cover (Preview) Google Translate- Good morning. I want to unscrew the oil filter cover and here is the poverty. 1 Allen screw is round inside. The second one is for a screwdriver and the thread in the motor is broken. A bit of a problem. What advice is there? What dimensions do the original screws have? I advised mysel...	tom13	9	1182	Oct 5, 2018 by tom13
	not starting (Preview) Hi all, I got my ttr oe last Friday. All was well. I discovered original air filter was not all there. About a 1/4 of it had fell apart and was mostly crumbled in the air box. New air filter fitted after cleaning crud out of airbox. On my way home from work Friday night bike slowed and spluttered, time to go to...	650Katman	6	1024	Oct 1, 2018 by TTRfan
	Standard bars are the same shape as... (Preview) Just thought I'd post this here, I replaced my bars a while ago with Protaper - Seven Eighths - YZ high bend - they are exactly the same as standard but much stronger Alloy ones. In case its handy for someone else I thought I'd post it up. Cheers Leigh.	leigh	5	2078	Sep 30, 2018 by PlumasDude
	Chain roller (Preview) I was doing a check over my bike and it looks like the previous owner put the chain roller in the wrong spot when installing the skid plates. Am I correct? Do I just unbolt it and put it below or are there washers That could be missing?	Rydasc6102	4	1688	Sep 29, 2018 by petenz
	New battery time (Preview) New battery time so she's dying is it worth going to lithium ion or sticking to sealed lead/glass matt the bike is running a Motobatt yellow mb7u the Lithium is about £20 more is it worth it the Motobatt has lasted well I put it on when I got the bike so around 4 years also how do the Lithium battery's play bal...	pug	5	1227	Sep 26, 2018 by skyrider
	Oily problem (Preview) Guys, I'm losing oil from a gaskey under the head on the front left hand side of the engine (near the exhaust outlet).. The bike had loose bolts all over it when I got it and I'm thinking even the engine studs could be loose. It it advisable to crank on the bolt? I've got a torque wrench but not sure the setti...	Gavinm	5	1233	Sep 21, 2018 by ttboof
	Possible broken clutch perch (Preview) i was out riding today and I took a decent fall on stone. My guard poped off and it looks like the clutch perch is pulling apart. I haven't looked closely at it before and dont know if it is bent or broken. Any of you know?	Rydasc6102	2	645	Sep 20, 2018 by Rydasc6102
	Lithium grease (Preview) is lithium grease safe to use on the ttr250 chain. I work with several people who use lithium grease on their chains because it is so cheap. Would this harm the chain since it is an o-ring chain, does it work well, does it last long on the trails? Thanks	Rydasc6102	5	1008	Sep 20, 2018 by petenz
	TTR250 was running fine, now only on choke and revving high (lean) (Preview) My son finally got around to telling me the bike ”wont stay running”. Sure enough only runs on choke and when i was fiddling with throttle and choke while on ks, a partial donut fell out. (Try and post Pic) I was thinking exhaust pipe gasket @ cylinder but looked for images online and part looks like coppe...	richief	7	4155	Sep 14, 2018 by richief
	How to remove a broken bolt in a deep or recessed hole (Preview) Wow - I never cease to be amazed at the resources avaialble via the interweb! I was looking on YouTube for info on replacing a MAF sensor on a Jag and saw this video on the sidebar:- It also alerted me to a tool that I haven't come across before ca...	TTRfan	2	964	Sep 13, 2018 by gooddelph
	Kickstarter screw replacements (Preview) Hi totally ttr, I am just about ready to order a bunch of bits for my 1993 Open enduro. The list is quite long and I'm trying to find replacement parts for my kickstarter, I have already found a ball bearing and spring. But I need a screw to replace mine that has sheared at some point. The screw on the kicksta...	BikerMat	10	1175	Sep 12, 2018 by BikerMat
	Found a place you can purchase the rear shock that wont make you cry (Preview) I was looking into purchasing a new shock before I sent mine off for rebuild and found this in the process. It's a different part number than the OE shock but looks identical. Figured I throw this out there for those that are dealing with shock issues. https://www.cmsnl.com/products/shock-absor...	Rooster	3	1162	Sep 10, 2018 by ttr steve
	Clutch Plate Compatibility (Preview) I'm thinking of changing out the friction plates on my clutch. I'm pretty sure but not positive that the clutch plates for the WR250 are the same as the ones in the blue TTRs. Can anyone confirm that this is the case?	Rooster	4	615	Sep 6, 2018 by ttr steve
	Left side indicators blink fast? (Preview) silly question i have a 1993 TTR 250 .. when I put hazards on all four indicators blink correct. when I use turn signals right side works fine ,bet when I switch to left side indicators blink fast ??? put work fine. Any ideas ???? thanks	Dorian	2	851	Sep 6, 2018 by Ridaz
	Gearing help (Preview) Hi my ttr rides ok but feels like I'm thrashing it at 55mph my rear sprocket is a 49 and my front is 13. I would like a little more top end speed for road use but would like it to still have power when needed too. What would you guy recommend? What are other people running on?	chrishughes1989	2	868	Sep 3, 2018 by diggermanbob
	Cleaning front wheel gear unit. (Preview) I want to remove all of the old grease from the front wheel gear unit and replace it with new grease, but I don't want to damage it as it is nearly $100 from yamaha. how should I go about cleaning it out? Thanks.	Rydasc6102	8	1378	Sep 3, 2018 by Herman
	Stripping paint. (Preview) im looking into getting new side covers from a friend and he painted them. Would paint stripper damage the plastic or would it be fine? Also could power washing them take off the paint? Thanks.	Rydasc6102	3	490	Aug 31, 2018 by Rydasc6102
	Difficulty removing flywheel.... (Preview) Difficulty is an understatement - it seems to have taken up most of my afternoon Flywheels can be stubborn but I haven't come across one before where it seemed like it was welded on! I used a combination of flywheel puller, heat, rattle gun and a generous helping of Irish screwdriver and it eventually...	TTRfan	5	1269	Aug 29, 2018 by mmwain
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