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

TTRfan · TTRfan

As suggested by brindabella, I have started this thread to show my own choice of "proven/economical/useful workshop consumables". I have started off with my UK thoughts maybe other owners from USA, Australia, etc, can weigh in with their local equivalent brands...... First off, one o...

TTRfan · TTRfan

Thread repair kits. These have got me out of trouble on a regular basis! Available quite cheaply on eBay. For the manufacturer's page - see here

Forgorin · Forgorin

So, I'm looking for more power! I have a '94 raid. I am hoping to add electric grips and an electric vest. Grips run at about 60 watts. That's almost half of what the stator produces. Are there any aftermarket stators for the bike? Am I looking at a rebuild?

kylarama · kylarama

Years ago when I last went riding I used to fill up my backpack with all types of useless crap that was heavy and probably only usefull on everyone elses bikes. What basic tools and spares specifically suited to a TTR should I carry as a minimum? Generally we wouldn't venture anymore than about 100km...

Base · Base

Well I'm back. My faithful old TTR was stolen 3 years ago. I truly didn't expect to see it again, thinking it had been parted out and sold or similar. However about 2 months ago I got a call from the Police saying they had located it. Apparently some local scumbag was caught riding it. It had been thinly dis...

robject33 · robject33

I just did a compression test on my bike for the first time. Here's a video of the first test: https://youtu.be/hdntwR44xtA And here's another video of a second test after putting some engine oil in the cylinder: https://youtu.be/yg6BeBRXtZA The compression builds a lot faster after adding the...

robject33 · robject33

Hey all, I can't seem to dial in the free play and reach of my front brake lever. Even with the reach adjustment dialled in as close to the bars as possible the lever still sits far out. And there's so much free play that the lever hits my knuckles when using the brakes. Here's a video showing the issue: htt...

yamalama · yamalama

Hi all, Just wondering if anyone else has experienced this. When I have not started by TTR for a few month. when I come to start it it turns over easily but doesn’t show any hint of wanting to start. I then try it on the kick start and there is very little resistance. after 20 or 30 kicks resistance builds up...

Jumpn · Jumpn

I changed out front sprocket and chain today. I know it's standard procedure to change rear sprocket also, but it showed little wear at all. My chain adjusters were at 12 before new chain, now they are at 6. I also replaced carburetor float bowl gasket. I went to start it up for the first time since No...

7kilps9 · 7kilps9

Good morning bois. My son bought and rebuilt a 2004 TTR250. It ran rough and wouldn't shift. He split the case. Put in a transmission. Honed the cylinder, new piston, new rings, new valves lapped in and leak tested. He couldn't get it to start. It's got spark. He claims he cleaned the carb out. Timing sho...

Patrik · Patrik

Hi guys i have a 2001 Yamaha ttr250 and when we got it we noticed that when you rev it the revs don't go back to idle they stay at the revs you were on and the only way you can get it back down is if you quickly rev the throttle. We have cleaned the carb checked the throttle cables and checked the choke but nothing...

Dylan Macdonald · Dylan Macdonald

Hi all I was wondering if you can help me I bought a ttr250 about a year ago I noticed the clutch was slipping so I decided to check the clutch plates and saw one plate had been snapped in a few places so I cleaned the motor out got the pieces out and put second hand plates for the mean time it lasted about 2 mon...

TTRider · TTRider

Hi all, I was out a couple of weekends ago on the TTR for the Borders Rally - first rally and a fantastic weekend... until the bike lost all drive! To start with the bike was having trouble finding gear - I'd kick the gear change lever up but it wouldn't find it. From what I remember this was third to four...

TTRfan · TTRfan

Brick cleaning acid works wonders on dirty exhaust headers but an alternative that I have recently found is to use a wire wheel on a bench grinder. Works really well and then just needs finishing off with some relatively fine wet & dry paper and Solvol Autosol. Brian PS Please excuse the messy benc...

TTRfan · TTRfan

I had a couple of clutch covers that I had put to the back of the shelves as I couldn't figure how to repair it and the covers are too valuable to throw away. The challenge is to drill the thread out for the Helicoil insert absolutely at 90 degrees. This is the kit I used - not actually Helicoil but a copy: I enl...

dlee · dlee

So, my daughter's bike is starting to smoke a lot, figure it's time for new rings and piston, looking on Ebay, looks like they offer a few replacements, 73.75 bore, 73mm bore, 73.5 bore, Any idea what size I need, I don't want to pay the inflated Yamaha OEM brand if I don't have too. Thanks -- Edited by dle...

mossproof · mossproof

I have a shift drum bearing that is badly contaminated with aluminium swarf. Anyone know how to change it? How does the star wheel come off the end to pull the bearing off? I can't see it mentioned in my manual at all!

Richard Davies · Richard Davies

Hi there. I've just had an ace day out on the great western trail and the washed out gulley at Midford has claimed my rear shock! Had to ride back sitting on the tank! Where can I send it off to get fixed? Thanks for any help!

Padowan · Padowan

I need to replace the filters on the ends of the petc0ck, on the brass lines that are inside the fuel tank. Does anyone happen to know what the size is of those brass lines, or has an OEM petc0ck kicking around and can measure them - replacement filters seem to come in a few size variants? I will have to tak...

Darren · Darren

Spotted this on a TTR sales site in China..does any one know if it will fit and is it an easy fit. It says it's a Piagio oil cooler - about 40 pounds... will it fit - any ideas? Daz

oshanrube · oshanrube

Hi all I'm not sure if this is been answered already. I have a charging problem and I checked the stator resistance and it was around 2ohms so I searched for a stator without any luck I ordered a Taiwan coil which was in spec for resistance but had a problem with the pickup which made the bike run super lean c...

alexkram · alexkram

Hi Guys, My 2005 TTR250 has a high pitched noise that gets louder with RPMs and when the engine gets hot. Clutch in or out makes no difference and neither does bike speed. I've only noticed it the last few hundred miles and it's been getting louder. Sometimes the engine makes a hard clunk when it shuts off...

mariaKaigiwnis · mariaKaigiwnis

Hello everyone! Yesterday i noticed that one of the studs that hold the exhaust in place had completely fell off my bike. I had replaced this stud a month ago as the previous one could not get tight enough and i hoped that this may resolve the issue, which unfortunately wasn't the case. The threading tha...

Christos · Christos

Hi all, My bike developed a weird rattling coming from the clutch basket, I think. It stops or minimises when I pull the clutch lever. It is not that annoying but I would like to ask if someone has experienced this and what could the cause be?

robject33 · robject33

Can anyone recommend a good fastners set that is availabe in the UK? I'm talking a big box of nuts, bolts, washers etc that I can have to hand when I need to replace one of the rusty ones that are beyond saving on my bike. Seems like there's always at least one like this that needs replacing when I've done any...

Ttboof · Ttboof

My ignition pick up has gone open circuit. I've ordered one on ebay that I think I can fit to the existing stator/wiring. Being Chinese if it works I might sell the ttr because I can't trust it Tried to buy a complete stator but apparently not available any more Has anyone got a good fix -- Edited by T...

Moabmatt · Moabmatt

I'm kicking myself a bit for this one, but let's see if I can get it running at least. Low compression (45-50 dry), no spark (before me), new wiring harness and tdi box installed by questionable methacanics... Leakdown and simple tests indicate carb, valves, rings, or something bigger. After top e...

Archershome · Archershome

Hello all, I would like some advice on the following. My Kick Start and Electric Start have jammed on my bike, I can move the crank using socket but only some of the way round in either direction before it jams. I have taken CAM cover off and looked at timing chain and valves, you can see that this all looks...

Speedy31470 · Speedy31470

Hi everyone. Thanks to a Forum Guru, I was able to obtain a used oil cooler. I have read the publications which talk about it, in particular the internal screw in the right cover. Do you have any advice for assembly and especially restarting in order to check that the lubrication is good through the cool...

rdchair · rdchair

Exhaust cracked right through today 😟. Don’t think it can be repaired ? So looking at new one . What do the new stainless ones sound like ? Good or too loud ? Keep it standard ? Thoughts ? Cheers

Topic		Started By	Replies	Views	Last Post
	STICKY: Essential workshop consumables - my choice - UK products (Preview) As suggested by brindabella, I have started this thread to show my own choice of "proven/economical/useful workshop consumables". I have started off with my UK thoughts maybe other owners from USA, Australia, etc, can weigh in with their local equivalent brands...... First off, one o...	TTRfan	8	5236	March 10th by TTRfan
	STICKY: Essential workshop tools! Please add yours to the thread... (Preview) Thread repair kits. These have got me out of trouble on a regular basis! Available quite cheaply on eBay. For the manufacturer's page - see here	TTRfan	30	22741	January 22nd by Ttboof
	STICKY: Output of stator (AC magneto generator) and wattage used by bulbs, etc. (Preview) So, I'm looking for more power! I have a '94 raid. I am hoping to add electric grips and an electric vest. Grips run at about 60 watts. That's almost half of what the stator produces. Are there any aftermarket stators for the bike? Am I looking at a rebuild?	Forgorin	10	3851	January 3rd by Ttboof
	STICKY: Basic tool kit & spares. What to carry on a ride? (Preview) Years ago when I last went riding I used to fill up my backpack with all types of useless crap that was heavy and probably only usefull on everyone elses bikes. What basic tools and spares specifically suited to a TTR should I carry as a minimum? Generally we wouldn't venture anymore than about 100km...	kylarama	18	15710	Dec 2, 2017 by TerryK
	Stolen TTR recovered after 3 years! (Preview) Well I'm back. My faithful old TTR was stolen 3 years ago. I truly didn't expect to see it again, thinking it had been parted out and sold or similar. However about 2 months ago I got a call from the Police saying they had located it. Apparently some local scumbag was caught riding it. It had been thinly dis...	Base	29	651	2 days ago by Base
	Compression test results - not sure if they are okay? (Preview) I just did a compression test on my bike for the first time. Here's a video of the first test: https://youtu.be/hdntwR44xtA And here's another video of a second test after putting some engine oil in the cylinder: https://youtu.be/yg6BeBRXtZA The compression builds a lot faster after adding the...	robject33	3	85	6 days ago by JOHNYBOY
	Excessive brake lever play (Preview) Hey all, I can't seem to dial in the free play and reach of my front brake lever. Even with the reach adjustment dialled in as close to the bars as possible the lever still sits far out. And there's so much free play that the lever hits my knuckles when using the brakes. Here's a video showing the issue: htt...	robject33	4	150	6 days ago by robject33
	Low compression after standing for months (Preview) Hi all, Just wondering if anyone else has experienced this. When I have not started by TTR for a few month. when I come to start it it turns over easily but doesn’t show any hint of wanting to start. I then try it on the kick start and there is very little resistance. after 20 or 30 kicks resistance builds up...	yamalama	8	161	7 days ago by ttr steve
	front sprocket changed, float bowl gasket changed, won't start (Preview) I changed out front sprocket and chain today. I know it's standard procedure to change rear sprocket also, but it showed little wear at all. My chain adjusters were at 12 before new chain, now they are at 6. I also replaced carburetor float bowl gasket. I went to start it up for the first time since No...	Jumpn	22	6985	March 21st by TTRfan
	2004 Ttr250 cranks, sparks, has gas, won't fire (Preview) Good morning bois. My son bought and rebuilt a 2004 TTR250. It ran rough and wouldn't shift. He split the case. Put in a transmission. Honed the cylinder, new piston, new rings, new valves lapped in and leak tested. He couldn't get it to start. It's got spark. He claims he cleaned the carb out. Timing sho...	7kilps9	7	217	March 21st by TTRfan
	Help - my TTR stays on high revs!!!!!! choke throttle carb throttleproblems help (Preview) Hi guys i have a 2001 Yamaha ttr250 and when we got it we noticed that when you rev it the revs don't go back to idle they stay at the revs you were on and the only way you can get it back down is if you quickly rev the throttle. We have cleaned the carb checked the throttle cables and checked the choke but nothing...	Patrik	47	73025	March 15th by ttr steve
	Ttr250 (Preview) Hi all I was wondering if you can help me I bought a ttr250 about a year ago I noticed the clutch was slipping so I decided to check the clutch plates and saw one plate had been snapped in a few places so I cleaned the motor out got the pieces out and put second hand plates for the mean time it lasted about 2 mon...	Dylan Macdonald	2	115	March 13th by Dylan Macdonald
	Gearchange return spring retaining post problems (Preview) Hi all, I was out a couple of weekends ago on the TTR for the Borders Rally - first rally and a fantastic weekend... until the bike lost all drive! To start with the bike was having trouble finding gear - I'd kick the gear change lever up but it wouldn't find it. From what I remember this was third to four...	TTRider	13	1397	March 11th by mossproof
	Cleaning exhaust header pipes (Preview) Brick cleaning acid works wonders on dirty exhaust headers but an alternative that I have recently found is to use a wire wheel on a bench grinder. Works really well and then just needs finishing off with some relatively fine wet & dry paper and Solvol Autosol. Brian PS Please excuse the messy benc...	TTRfan	1	159	March 10th by Mortown
	Fitting a Helicoil to repair a stripped banjo bolt thread (Preview) I had a couple of clutch covers that I had put to the back of the shelves as I couldn't figure how to repair it and the covers are too valuable to throw away. The challenge is to drill the thread out for the Helicoil insert absolutely at 90 degrees. This is the kit I used - not actually Helicoil but a copy: I enl...	TTRfan	0	76	March 10th by TTRfan
	Bore size on a 2000 TTR250 (Preview) So, my daughter's bike is starting to smoke a lot, figure it's time for new rings and piston, looking on Ebay, looks like they offer a few replacements, 73.75 bore, 73mm bore, 73.5 bore, Any idea what size I need, I don't want to pay the inflated Yamaha OEM brand if I don't have too. Thanks -- Edited by dle...	dlee	1	228	February 23rd by mossproof
	Transmission shift drum bearing (Preview) I have a shift drum bearing that is badly contaminated with aluminium swarf. Anyone know how to change it? How does the star wheel come off the end to pull the bearing off? I can't see it mentioned in my manual at all!	mossproof	2	133	February 17th by mossproof
	Rear shock gone soggy! (Preview) Hi there. I've just had an ace day out on the great western trail and the washed out gulley at Midford has claimed my rear shock! Had to ride back sitting on the tank! Where can I send it off to get fixed? Thanks for any help!	Richard Davies	0	136	February 16th by Richard Davies
	Fuel petc0ck filter size (Preview) I need to replace the filters on the ends of the petc0ck, on the brass lines that are inside the fuel tank. Does anyone happen to know what the size is of those brass lines, or has an OEM petc0ck kicking around and can measure them - replacement filters seem to come in a few size variants? I will have to tak...	Padowan	9	329	February 13th by TTRfan
	Oil cooler information ( 1 2 3 4 ) (Preview) Spotted this on a TTR sales site in China..does any one know if it will fit and is it an easy fit. It says it's a Piagio oil cooler - about 40 pounds... will it fit - any ideas? Daz	Darren	174	154597	February 10th by mossproof
	Stator coil output (Preview) Hi all I'm not sure if this is been answered already. I have a charging problem and I checked the stator resistance and it was around 2ohms so I searched for a stator without any luck I ordered a Taiwan coil which was in spec for resistance but had a problem with the pickup which made the bike run super lean c...	oshanrube	3	193	February 2nd by dlee22
	High pitched engine noise, louder when hot (Preview) Hi Guys, My 2005 TTR250 has a high pitched noise that gets louder with RPMs and when the engine gets hot. Clutch in or out makes no difference and neither does bike speed. I've only noticed it the last few hundred miles and it's been getting louder. Sometimes the engine makes a hard clunk when it shuts off...	alexkram	12	357	January 24th by Ttboof
	Exhaust stud threading issue (Preview) Hello everyone! Yesterday i noticed that one of the studs that hold the exhaust in place had completely fell off my bike. I had replaced this stud a month ago as the previous one could not get tight enough and i hoped that this may resolve the issue, which unfortunately wasn't the case. The threading tha...	mariaKaigiwnis	5	203	January 22nd by Nev
	Rattling from clutch basket (Preview) Hi all, My bike developed a weird rattling coming from the clutch basket, I think. It stops or minimises when I pull the clutch lever. It is not that annoying but I would like to ask if someone has experienced this and what could the cause be?	Christos	3	201	January 20th by JOHNYBOY
	Fasteners set (Preview) Can anyone recommend a good fastners set that is availabe in the UK? I'm talking a big box of nuts, bolts, washers etc that I can have to hand when I need to replace one of the rusty ones that are beyond saving on my bike. Seems like there's always at least one like this that needs replacing when I've done any...	robject33	0	151	January 20th by robject33
	replaced ignition pick up (Preview) My ignition pick up has gone open circuit. I've ordered one on ebay that I think I can fit to the existing stator/wiring. Being Chinese if it works I might sell the ttr because I can't trust it Tried to buy a complete stator but apparently not available any more Has anyone got a good fix -- Edited by T...	Ttboof	33	1102	January 10th by Ttboof
	2005 ttr low compression, no start, rings, valves (Preview) I'm kicking myself a bit for this one, but let's see if I can get it running at least. Low compression (45-50 dry), no spark (before me), new wiring harness and tdi box installed by questionable methacanics... Leakdown and simple tests indicate carb, valves, rings, or something bigger. After top e...	Moabmatt	1	194	January 2nd by mossproof
	Kick Start and Electric Start Jammed (Preview) Hello all, I would like some advice on the following. My Kick Start and Electric Start have jammed on my bike, I can move the crank using socket but only some of the way round in either direction before it jams. I have taken CAM cover off and looked at timing chain and valves, you can see that this all looks...	Archershome	5	799	January 2nd by ttr steve
	Install an oil cooler (Preview) Hi everyone. Thanks to a Forum Guru, I was able to obtain a used oil cooler. I have read the publications which talk about it, in particular the internal screw in the right cover. Do you have any advice for assembly and especially restarting in order to check that the lubrication is good through the cool...	Speedy31470	2	238	December 22nd by Cubber
	Exhaust -Stainless/standard / repair (Preview) Exhaust cracked right through today 😟. Don’t think it can be repaired ? So looking at new one . What do the new stainless ones sound like ? Good or too loud ? Keep it standard ? Thoughts ? Cheers	rdchair	5	308	December 18th by ttr steve
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