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What size O-rings for the Pilot Screw?
(Preview)
So all-balls carb rebuild kit didn't provide everything - what size O ring goes on the pilot screw? The one provided is too small. I see I am not the only person to run into this issue - sorry I couldn't find that thread this morning to ask this there. Apologize if I am junking up the place. How do I sear...
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ghardison
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2
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357
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Starter Plunger, where does this seal belong?
(Preview)
I recently tore into a major carburetor repair on a non running 2005 TTR. Took several ultra sonic soaks and a deep soak in some Berrymans. Replaced everything that was included in the all balls rebuild kit. Waiting on diaphragm and check valve then hopefully she'll come back to life. In the meantim...
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ghardison
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2
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307
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Rear foot pegs for Raid - now required for MOT
(Preview)
Does anyone know where I can get rear foot pegs for the TTR250 Raid. Apparently they are now required by the MOT if your seat can take 2 people.
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sslrgrt
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8
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449
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Help please: weird starter/no-spark issue
(Preview)
Hi all, Two weeks ago my blue TTR (2003) was working fine: I did a 135k on/off road trip, parked up and when I went back to the bike a day later it wouldn't start. The starter would turn but there was no spark. Being a lazy sod I took it to my local Yamaha dealer. They did static tests and said the stator was duff...
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glebe74
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10
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504
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Spindle trouble with YZ forks
(Preview)
I took the TTR down to the local tyre fitters today, to get a new front tyre. Unfortunately they couldn't get the wheel off. The forks on my bike I think are 1998 YZ forks. When the spindle is unscrewed from the left fork leg, the spacer on that side is seized to the spindle. It reaches a point where all its do...
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Dan-in-a-Van
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3
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335
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Another jammed sprag clutch!
(Preview)
I am stripping an engine and the sprag clutch was really jammed. If you look at the way the bearing assembly has been bent, this sprag kicked back big time! Can't believe it wasn't giving out audible warning signals to the owner well before this happened. I have found the best way to safely unjam the s...
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TTRfan
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10
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1031
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DIY powder coating
(Preview)
Interesting video. The guy (can't find his name) has built his own powder coating setup very cheaply and, in this video, coats some TTR parts including the barrel from a 350 kit
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TTRfan
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2
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490
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Piston ring positions
(Preview)
Hi there, has anyone noticed during a rebuild that there top two piston rings are positioned closer together than expected? I noticed this in both the 325 and 350 I split recently but 100% know the 350 was spot on with spacings some 200 miles ago? The 325 had had more miles on and were closely aligned. T...
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dlee22
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7
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764
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REPLACE SPRAG CLUTCH "STARTER ONE WAY"
(Preview)
Just for information when you hear that dreaded "Clunk" sound when you stop the engine and your fears of having to replace the Sprag Clutch, its not that harder job. The sound was getting louder and more often when the engine was stopped. 2001 model with 16000km, we are the 4-5 owners looking at the bik...
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Rossyboys
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5
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956
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Blue tank speedo drive
(Preview)
Hi all, got an issue with my blue tank speedo drive, yes the speedo does work but when the dike is in the air & I turn the front wheel backward it locks up, I removed the speedo drive & inspected, cleaned it up. the worm gear or pinion had end float & I believe this is causing the lockup. To me it s...
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TerryK
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2
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360
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Ignition Coil Lead replacement possible?
(Preview)
Hello! It seems that the coil lead on my ttr has some internal damage.Sometimes when unplugging and putting it back i get misfires. I have cut a few mm of the end of the lead and screwed the plug cap back in and it cured the problem.But i already had to do it twice now. Is it possible to remove the lead from the...
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Spyrious
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4
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507
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Help: loss of power in 7000-10000rpm range
(Preview)
Dear all I am new to the forum, but post here as I hit a strange issue yesterday. I have fitted a TTR 250 engine in my daughters quad bike and have fitted a speeduino ECU and electronic fuel injection. During the mapping phase We did a number of high load runs (2-3 hours) on the dyno to ensure fueling is co...
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lybker
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3
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939
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Starter motor
(Preview)
I had mine in and out a few times over the past week. I figured that a video could be useful for others.
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tripodtiger
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2
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440
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No spark
(Preview)
Hey guys, Ran into some trouble with my 93 TTR250.. had to weld my stator cover and when assembling back together I accidentally ran the cables outside the manifold. bike ran for a while but then wires got rubbed by my chain and it stopped. took me a while to track it down, in the meantime I’ve replaced the...
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Marktheaussie
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0
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417
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Clutch Kit... Kevlar or cork?
(Preview)
Just wanted to get an opinion from you guys... I need to put a clutch kit into my '06 TTR250. There are 2 on ebay that have caught my attention. One is Kevlar and the other is cork. Both are fairly close in price, just wondering on the pro's and cons of each. Also if you know of a cheaper or better kit I would app...
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HarleyRigid
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5
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1471
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Rear foot pegs
(Preview)
Good evening everyone,just wondering if anyone would be able to give me an example of the rear foot pegs bolts and washer setup,mine didn’t have any fitted when I got her,I’ve sourced new pegs but need the right setup to keep it original,I know which springs I need but I’m unable to find which bolts I nee...
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Gazztop
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4
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479
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Whats the best clutch Kit to get for a 2001 TTR250 Living in Sydney Australia
(Preview)
Hi all, need to replace clutch in a 2001 TTR250 blue frame plastic tank. I live in Sydney Australia. Will do Friction plates, drive plates and springs, ...might as well while cover is off. Brand and store if possible, or link Thanks Grahame
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Rossyboys
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2
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362
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350 clutch slipping under hard acceleration
(Preview)
Hi guys, I took my 350 on the road and the clutch was slipping under hard acceleration. Everything set according to specs, EBC heavy duty discs and springs, OE six disc basket. The basket has slight notching though. I feel too much power is lost there. What could be the cause? Anyone with a 350 having the...
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Christos
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12
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497
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Blue bike speedo drive
(Preview)
Good morning, ive Started doing some essential work on my newly bought 2003 blue ttr,it was running terrible so after a full carb rebuild the next job is the Speedo,as that’s essential for me,it wasn’t working at all so I checked the speedo drive hub and it has no internals at all,I’m super skint at t...
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Gazztop
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0
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338
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Running in new piston and rings
(Preview)
Hello all, going to putting new piston and rings into TTR and wondered how long / running in process is? Any advice would be great. Cheers
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Archershome
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11
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1470
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Swing arm "chain protector" parts - anyone ever seen these?
(Preview)
https://www.ebay.co.uk/itm/NOS-YAMAHA-3J0-22147-00-00-REAR-SWING-ARM-CHAIN-P...
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TTRfan
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1
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874
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Crankcase breather
(Preview)
Hi guys quick question for ya,I’ve just bought this bike and noticed it has a bad oil leak from the top end somewhere,I rode it briefly the other day and it was way too bad,it seemed to be leaking out at pressure,as if there is no crankcase breathers,so I go and investigate,and I can’t find one on there at...
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Gazztop
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13
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510
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Clutch question
(Preview)
I was looking at the clutch diagram from the manual and noticed that part 11 in the photo does not exist (in the manual I have). The photo is from Brian's guide. Is this part for the blue or OE TTRs only? What if it is missing, would it cause a problem? -- Edited by Christos on Friday 8th of July 2022 01:01:10 P...
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Christos
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2
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379
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Life of a chain slide
(Preview)
How long should a chain slider last under normal conditions? I'm referring to the slider near the front spoket. Mine seems to be eating away way too soon, and the chain tension is correct, what other factors can affect this?
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oshanrube
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3
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408
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Valve clearance check
(Preview)
Hey guys, How often do you check valve clearance? The manual says every 2000 km, isn't that a rather narrow interval?
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Christos
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27
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1633
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Popping on deceleration/overrun
(Preview)
Ive recently replaced the lower carb o-rings, seal and diaphragm and set up the carb with 50 pilot, I think 142 or 147 main (couldn't read clearly) with pilot screw 2 turns out, twin air filter (snorkel still present) and dominator end can. It starts up almost immediately but the popping on the overru...
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Bobbler
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3
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401
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breather cap coming off
(Preview)
Hi all, i noticed that every couple of days the breather cap is coming off and the bike runs bit rough , so my question is can i glue this off? is this something which i will need access to eventually? also how do you usually refill the rear brake reservoir ? its located in a place where its very hard to pour...
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oshanrube
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3
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375
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Cam chain wear/glowing down pipe
(Preview)
Hi there, I just finished the 350 rebuild a few weeks ago and took it out for a spin for 15 miles and decided the jetting was too far out. I adjusted to 147 50 bottom clip starts fine, however the down pipe started glowing and therefore running lean. I checked my timing thinking it may be slightly off and i...
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dlee22
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7
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922
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White TTR250 won’t start,
(Preview)
My 1995 model was running great when I did a 200 km ride 3 weeks ago, now it won’t start. I checked spark and compression to find only 65psi. Have checked carby and valve seating plus piston and rings but found nothing apparently wrong. Now out of ideas. ian, Australia
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Ian Mallows
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9
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1190
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Folding mirrors
(Preview)
Hi. Can anyone recommend any folding mirrors for a 2005 Blue? There seems to be a lot of confusion about thread pitch, size and rotation. Thanks
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BrianG
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4
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539
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