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

TTRfan · TTRfan

A really helpful guide from Paul Oleson here

Wardy · Wardy

Hi guys, hope someone can help, my ttr keeps blowing the 15amp fuse on top of the battery box, which then kills the engine. Change the fuse, bike starts, will do 100m, and fuse blows. Will tick over great, but soon as a bit of load.....fuse blows. Any idea's please? Thanks in advance, Steve.

dlee22 · dlee22

Hi there, The old man's ttr cuts out going through deep puddles. It splutters and dies but give it a few minutes it sorts itself out and starts, I'm not sure of the state of the breathers really but it started without hesitation after the jet wash, must be stupid, maybe electrical connection somewhere...

dv8 · dv8

Ok guys so i need to get my ttr250r back on the road after a head-on with a car. 2008 ttr250r Need to replace the following i was thinking about upgrading the the front end to either WR or YZ Does anyone know if this is possible with a TTR ? Front shocks Head stem / tripples WR dash and headlight Than...

zipper · zipper

Hi. I got a 250 last August with 10.000 kms on the clock. Im sure its not the real mileage as the previous owner told me the speedo did not work for some time. I love pics. Its easier and not so boring. 1st pic - as it arrived home! 😁

RodYorkttr · RodYorkttr

Im due to change out the drive shaft seal and gear selector seal tomorrow. I have spares that came with a bike, all appear good. Is there anything I should be particularly wary of or are there any "pro" tips I should employ!- I saw Brian had advised someone on this before- possibly using 2 seals fro the dri...

Timo38 · Timo38

Hey all, ive just rebuilt my 2000 model ttr250 Top to Bottom (new carb intake boot included) I’ve cleaned the carb as upon intial ride after the rebuild there was a flat spot under load which turned out to be a blocked leak jet for the AP pump, now all is running well with the exception of it surging when he...

Brighton Brad · Brighton Brad

Hello chaps, I've looked everywhere here and can't find the link for the helicoil kit for the spark plug thread replacement, can you help please? Thanks chaps.

650Katman · 650Katman

From what I've read on here, I have had a common problem as the speedo magnet broke into three. Luckily it didn't eat through the pickup sensor. I cleaned it up and glued the broken pieces back in and for added security put heat shrink over the top. With the heat shrink on there is a tighter fit in the casing...

Stephen68 · Stephen68

Hello to all, can anyone tell me what MX rear fender will come close to fitting my 03 ttr250? i have read around the internet but cant really find a definitive answer. i heard someone say certain year YZ fenders would fit with modification and i have heard people say the same about certain WR250 fenders....

Fat Leopard · Fat Leopard

So, I don't believe that any TTR250s sold in the US had a kick start. I would like to convert mine to dual start using OEM parts and I imagine the bits needed were likely used on other machines available in the US. Does anyone have information on this subject to share before I go digging? Maybe point to a thr...

Lurkville · Lurkville

4GY-14958-00-00 When I took off my accelerator pump cover it had a paper gasket. There is nothing on the parts fiche for this part, and I looked up the part and it doesnt look like it comes with one. It does have O-Rings. Does anybody know if these come with paper gasket as well? Is it Needed? Could have be...

ttboof · ttboof

Two thousand KS since the rebuild went to start the ttr early this morning and the head gasket went bang out the lh side Took the day off work to ride now trying to find a new gasket with in 300ks drive

Jak · Jak

Hi, I am trying to put some indicators on my newly acquired OE. I have had to replace the switchgear as the indicator switch was mangled. When I have tried to connect it all up I have found that even with the switch gear disconnected the brown and the brown and white wire that go into the flasher unit are l...

Ross · Ross

I have just purchased some ebc FA135tt brake pads which I thought were for the rear but i have obviously mixed them up with the front pads! The letters are slightly different to those listed on the help page does anybody know if these will fit the front they are EBC FA135 TT. Also i need to replace the slide...

wilbjr21 · wilbjr21

Hi Everyone. This is my first post although I've been her a while now. I have a question. Is it possible to fit the OE Yamaha oil cooler when the bike is fitted with an Acerbic tank? The bike is a 2003 Blue model. -- Edited by wilbjr21 on Sunday 10th of February 2019 03:11:13 PM

GUSTAVO · GUSTAVO

Hello, Can anyone tell me what are the electric wires (color) for the conection of the horn?? Thank´s.

T Mozza · T Mozza

Hey, Bit of info, today I set my sag height for my new TTR and everything went well, bike felt a lot better etc. This evening I took it for a quick burn over a few bumpy bits and the rear suspension seema to have bottomed out and is now stuck in that position. I have tried releasing pressure off the rear wheel a...

mossproof · mossproof

Does anybody know if a Raid loom has heavier gauge wire to the headlight than an OE? I believe the Raid bulb is 55/60W, is this correct? Also, what power are the Aus spec headlights with those big glass lenses?

J2TJD · J2TJD

I have a UK registered 2004 TTR250 which I want to re-register (Matriculate) in Portugal, as I live there for half of the year, and the trail riding there is superb. In order to do this, I need to have a Certificate of Confirmity for the EU, which is something that is issued when the bike is new. I bought the...

Jim Clark · Jim Clark

Can anyone help engine keeps stalling when engaging 1st gear the problem appears to be electrical any ideas.

AndreL · AndreL

I have read a thread or two on VIN numbers on here and elsewhere on the Net, but not sure what to make of my VIN number. According to everything i have seen the 10th digit is the year of manufacture and until 2000 it was represented by a letter - in this case apparantly "Y". From 2001 and up the year is represen...

Martinm · Martinm

I have an oil leak I cant seem to get rid of I've got a new generator gasket first fitted it dry and it sprung a leak I have since took it off and put gasket sealer both sides if the gasket now it's coming out through the wires that go to the generator. Have you guys got any suggestions to cure this oil leak once...

T Mozza · T Mozza

Hi everyone, new to TTRs and this forum. I was doing some reading on the infamous sprag clutch issues common to TTRs. I've noticed mine makes a clunk when stopping and just wanted a second opinion from someone other owners about whether this sound is normal (just the engine coming to a stop) or somethin...

Kaos · Kaos

I just got through washing TEN air filters . I always find it a PITA do do so put it off and wash as many at once I can. P.S. only two for were for the TTR. How does everyone else dry theirs, I usually string them up on a coat hangar and use a fan or hairdryer if I'm in a hurry. Its that hot today they should dri...

David Andrews · David Andrews

I have recently bought a 2005 TT250R . It has nobblies on front (80/100/21) & rear (140/80/18). I am looking for better road use tyres. Can anyone recommend a suitable pair of tyres & advise if sizes need to stay the same or is there any known room for wider road profile tyre?

purdoy25 · purdoy25

Hello I have a problem. My bike will crank but won't start. I have checked the fuel lines and the carb is properly tuned. It was running good the other day, I went out during the night (in the city) but after a few minutes of riding my headlight died so I was forced to turn back. When I tried to start the bike to...

Lurkville · Lurkville

Hey Guys, So I pulled the top end on my TTR250 to service the head gaskets, valve guide seals, and lapped the valve ax I did not remove the e-s before removing the top end, and removed everything including timing at tDC. However I did accidentally the stator clockwise a coulle turns which resulted in a s...

TTRfan · TTRfan

The photos are actually from de-rusting my BSA C15 tank which, to be fair, is nearly 60 years old but the same technique can be applied to an OE or Raid metal tank that might have been left standing empty of fuel for a few years. The media I used is quite chunky and used in vibrating tumblers and is called, if...

heffh084 · heffh084

Happy new year to all you fellow TTR fans and guru's. I have recently started to run in my girlfriend's 325 engine after a a full rebuild and winter upgrade and have noticed a new clutch fault. I've had a search on the forum but my search terms didn't come up with anything that resembles the same behaviour...

Topic		Started By	Replies	Views	Last Post
	Removing & installing crankcase bearings (Preview) A really helpful guide from Paul Oleson here	TTRfan	0	994	Mar 3, 2019 by TTRfan
	Try cutting out? (Preview) Hi guys, hope someone can help, my ttr keeps blowing the 15amp fuse on top of the battery box, which then kills the engine. Change the fuse, bike starts, will do 100m, and fuse blows. Will tick over great, but soon as a bit of load.....fuse blows. Any idea's please? Thanks in advance, Steve.	Wardy	5	946	Mar 3, 2019 by Wardy
	Bike cuts out in water (Preview) Hi there, The old man's ttr cuts out going through deep puddles. It splutters and dies but give it a few minutes it sorts itself out and starts, I'm not sure of the state of the breathers really but it started without hesitation after the jet wash, must be stupid, maybe electrical connection somewhere...	dlee22	3	1113	Mar 3, 2019 by mossproof
	2008 TTR250r - repairs after head on with a car. (Preview) Ok guys so i need to get my ttr250r back on the road after a head-on with a car. 2008 ttr250r Need to replace the following i was thinking about upgrading the the front end to either WR or YZ Does anyone know if this is possible with a TTR ? Front shocks Head stem / tripples WR dash and headlight Than...	dv8	3	1312	Mar 3, 2019 by sthia
	Top end rebuild - stock TTR (Preview) Hi. I got a 250 last August with 10.000 kms on the clock. Im sure its not the real mileage as the previous owner told me the speedo did not work for some time. I love pics. Its easier and not so boring. 1st pic - as it arrived home! 😁	zipper	33	2441	Mar 2, 2019 by greekmountains
	Drive shaft & gear selector seal (Preview) Im due to change out the drive shaft seal and gear selector seal tomorrow. I have spares that came with a bike, all appear good. Is there anything I should be particularly wary of or are there any "pro" tips I should employ!- I saw Brian had advised someone on this before- possibly using 2 seals fro the dri...	RodYorkttr	9	813	Feb 27, 2019 by RodYorkttr
	2000 model TTR250 surging at 80kmh on freeway (Preview) Hey all, ive just rebuilt my 2000 model ttr250 Top to Bottom (new carb intake boot included) I’ve cleaned the carb as upon intial ride after the rebuild there was a flat spot under load which turned out to be a blocked leak jet for the AP pump, now all is running well with the exception of it surging when he...	Timo38	0	966	Feb 26, 2019 by Timo38
	Spark plug thread helicoil (Preview) Hello chaps, I've looked everywhere here and can't find the link for the helicoil kit for the spark plug thread replacement, can you help please? Thanks chaps.	Brighton Brad	11	1781	Feb 21, 2019 by mossproof
	Speedo magnet (Preview) From what I've read on here, I have had a common problem as the speedo magnet broke into three. Luckily it didn't eat through the pickup sensor. I cleaned it up and glued the broken pieces back in and for added security put heat shrink over the top. With the heat shrink on there is a tighter fit in the casing...	650Katman	1	956	Feb 20, 2019 by mossproof
	2003 TTR 250 Rear Fender Question! (Preview) Hello to all, can anyone tell me what MX rear fender will come close to fitting my 03 ttr250? i have read around the internet but cant really find a definitive answer. i heard someone say certain year YZ fenders would fit with modification and i have heard people say the same about certain WR250 fenders....	Stephen68	4	1266	Feb 18, 2019 by Fat Leopard
	Kick start for US models (Preview) So, I don't believe that any TTR250s sold in the US had a kick start. I would like to convert mine to dual start using OEM parts and I imagine the bits needed were likely used on other machines available in the US. Does anyone have information on this subject to share before I go digging? Maybe point to a thr...	Fat Leopard	4	1008	Feb 16, 2019 by TTRfan
	Accelerator pump cover gasket? (Preview) 4GY-14958-00-00 When I took off my accelerator pump cover it had a paper gasket. There is nothing on the parts fiche for this part, and I looked up the part and it doesnt look like it comes with one. It does have O-Rings. Does anybody know if these come with paper gasket as well? Is it Needed? Could have be...	Lurkville	2	985	Feb 16, 2019 by TTRfan
	Head gasket bugger (Preview) Two thousand KS since the rebuild went to start the ttr early this morning and the head gasket went bang out the lh side Took the day off work to ride now trying to find a new gasket with in 300ks drive	ttboof	23	1277	Feb 16, 2019 by ttboof
	Wiring indicators (Preview) Hi, I am trying to put some indicators on my newly acquired OE. I have had to replace the switchgear as the indicator switch was mangled. When I have tried to connect it all up I have found that even with the switch gear disconnected the brown and the brown and white wire that go into the flasher unit are l...	Jak	8	1829	Feb 15, 2019 by tripodtiger
	Brake pads (Preview) I have just purchased some ebc FA135tt brake pads which I thought were for the rear but i have obviously mixed them up with the front pads! The letters are slightly different to those listed on the help page does anybody know if these will fit the front they are EBC FA135 TT. Also i need to replace the slide...	Ross	2	770	Feb 14, 2019 by Ross
	Standard oil cooler with 22litre Acerbis tank (Preview) Hi Everyone. This is my first post although I've been her a while now. I have a question. Is it possible to fit the OE Yamaha oil cooler when the bike is fitted with an Acerbic tank? The bike is a 2003 Blue model. -- Edited by wilbjr21 on Sunday 10th of February 2019 03:11:13 PM	wilbjr21	3	1173	Feb 12, 2019 by wilbjr21
	HORN WIRING CABLES (Preview) Hello, Can anyone tell me what are the electric wires (color) for the conection of the horn?? Thank´s.	GUSTAVO	1	877	Feb 11, 2019 by TTRfan
	Went for a ride, now rear suspension is stuck fully compressed (Preview) Hey, Bit of info, today I set my sag height for my new TTR and everything went well, bike felt a lot better etc. This evening I took it for a quick burn over a few bumpy bits and the rear suspension seema to have bottomed out and is now stuck in that position. I have tried releasing pressure off the rear wheel a...	T Mozza	11	2096	Feb 11, 2019 by TTRfan
	Headlight questions (Preview) Does anybody know if a Raid loom has heavier gauge wire to the headlight than an OE? I believe the Raid bulb is 55/60W, is this correct? Also, what power are the Aus spec headlights with those big glass lenses?	mossproof	31	2972	Feb 10, 2019 by micccki
	Certificate of Conformity for EU (Preview) I have a UK registered 2004 TTR250 which I want to re-register (Matriculate) in Portugal, as I live there for half of the year, and the trail riding there is superb. In order to do this, I need to have a Certificate of Confirmity for the EU, which is something that is issued when the bike is new. I bought the...	J2TJD	3	1040	Jan 28, 2019 by J2TJD
	TTR 250 Electrical Problem (i think) (Preview) Can anyone help engine keeps stalling when engaging 1st gear the problem appears to be electrical any ideas.	Jim Clark	21	1060	Jan 25, 2019 by mossproof
	What have i bought? (Preview) I have read a thread or two on VIN numbers on here and elsewhere on the Net, but not sure what to make of my VIN number. According to everything i have seen the 10th digit is the year of manufacture and until 2000 it was represented by a letter - in this case apparantly "Y". From 2001 and up the year is represen...	AndreL	2	1017	Jan 20, 2019 by AndreL
	Generator oil leak (Preview) I have an oil leak I cant seem to get rid of I've got a new generator gasket first fitted it dry and it sprung a leak I have since took it off and put gasket sealer both sides if the gasket now it's coming out through the wires that go to the generator. Have you guys got any suggestions to cure this oil leak once...	Martinm	16	1243	Jan 19, 2019 by JOHNYBOY
	Is this sound my Sprag clutch failing or is it normal? (New TTR owner) (Preview) Hi everyone, new to TTRs and this forum. I was doing some reading on the infamous sprag clutch issues common to TTRs. I've noticed mine makes a clunk when stopping and just wanted a second opinion from someone other owners about whether this sound is normal (just the engine coming to a stop) or somethin...	T Mozza	4	841	Jan 19, 2019 by ttboof
	Air Filter Funnel Web Filters. (Preview) I just got through washing TEN air filters . I always find it a PITA do do so put it off and wash as many at once I can. P.S. only two for were for the TTR. How does everyone else dry theirs, I usually string them up on a coat hangar and use a fan or hairdryer if I'm in a hurry. Its that hot today they should dri...	Kaos	1	1054	Jan 17, 2019 by TerryK
	Road tyre choice & sizes (Preview) I have recently bought a 2005 TT250R . It has nobblies on front (80/100/21) & rear (140/80/18). I am looking for better road use tyres. Can anyone recommend a suitable pair of tyres & advise if sizes need to stay the same or is there any known room for wider road profile tyre?	David Andrews	7	2508	Jan 16, 2019 by petenz
	Bike cranking but won't start (Preview) Hello I have a problem. My bike will crank but won't start. I have checked the fuel lines and the carb is properly tuned. It was running good the other day, I went out during the night (in the city) but after a few minutes of riding my headlight died so I was forced to turn back. When I tried to start the bike to...	purdoy25	7	856	Jan 15, 2019 by purdoy25
	Electric Starter screeching noise after top end service (Preview) Hey Guys, So I pulled the top end on my TTR250 to service the head gaskets, valve guide seals, and lapped the valve ax I did not remove the e-s before removing the top end, and removed everything including timing at tDC. However I did accidentally the stator clockwise a coulle turns which resulted in a s...	Lurkville	9	1005	Jan 14, 2019 by mossproof
	Is your OE tank rusty on the inside? (Preview) The photos are actually from de-rusting my BSA C15 tank which, to be fair, is nearly 60 years old but the same technique can be applied to an OE or Raid metal tank that might have been left standing empty of fuel for a few years. The media I used is quite chunky and used in vibrating tumblers and is called, if...	TTRfan	2	904	Jan 10, 2019 by TTRfan
	Violent clutch engagement in 1st gear (Preview) Happy new year to all you fellow TTR fans and guru's. I have recently started to run in my girlfriend's 325 engine after a a full rebuild and winter upgrade and have noticed a new clutch fault. I've had a search on the forum but my search terms didn't come up with anything that resembles the same behaviour...	heffh084	12	1285	Jan 9, 2019 by petenz
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