Yamaha 250 TT-R FAQ

16 Июн 2015 | Author: | Комментарии к записи Yamaha 250 TT-R FAQ отключены

Yamaha TTR250 FAQ — 24 August 2001


The has an air-cooled, 4 …, 4 valve, single with electric six (fairly close ratio) gearbox and disc brakes and rear. The Open Enduro has a well specified suspension with adjustable units and rear. The very capable front end has a leading axle and forks with over 10 of

The rear has Yamaha’s own rising monoshock with a remote that allows adjustment for compression and rebound damping and 10 of travel as for the front forks. It has a box section frame with a duty ally swingarm and purple anodised wheel which you either love or The engine thrives on revs but has bottom end to plonk along at low and still pull cleanly nothing.

Quoted at 28bhp @

The TTR is a very civilised traillie TBM described as being as civilised as it is Only a handful of TTRs was back in 1995 by Mitsui (were these classed as imports does anyone but seem not to have sold — not because they good bikes — but of what was described as an exorbitant tag at the time of Ј4,000 plus. are basically two models: (pre the Y2K model) the Open Enduro and

There seemed to be a lot of imports 93 and 95 (usually white plastics and tanks) after which seems to be a gap until the new blue TTR (plastic tanks) became and sold officially by Yamaha in the UK. The models have electric and making them dual as well as revised steering and suspension. Some of the common are interchangeable with other of offroaders, i.e. brake but the battery is peculiar to the TTR (and

White imports between

What should I look out

MT21s do it for me! However, the ideal for UK and stony) trail riding is a MX knobbly on the front and a trials (e.g.Pirelli MT43) on the rear.

Can I get a kit for the TTR?

Yep! Paul of Bogbusters International Imports is a 320 — watch this Brian Eland of www.BrianEland.com is looking at importing SRC big-bore Also, have a look at American website for tuning for TTR250s — 325 big bore or 350 kits have been in America for some time http://www.strokerspeed.com/bikes/ttr250.cfm and http://www.srcinc.net/enginekit.html Rumour has it the can be unreliable though :-(

Yes — did an 22 litre plastic tank.

How can I the lights on the open Enduro?

(a) fit the whole headlamp assembly a Raid which are designed for and are 50/55W compared to the Open 33/36.5W. I have just a Raid headlight assembly to my TTR and the is amazing — well the Ј40 I paid for the s/h assembly complete.

The coil on the TTR produces a healthy and can run a 100W H4 halogen bulb but it fits before investing these bulbs will fit the Acerbis HP lamp which has a lens that can handle the of the bulb. The standard headlight and wires may be suspect running the bulb and it may be worth using gauge wires from the to the headlamp.

or (b) install a 250LC headlight and headlight brackets MP for a total of Ј46 (Ј26 for the light, Ј20 for the

PS If you don’t like the headlight on then fit a simple push on and off (about Ј4.00) and splice it the yellow and black wires by the left hand bar switch.

Can I get second-hand parts for my TTR?

For UK try Bogbusters International Imp Ltd (e-mail or Brian Eland (e-mail — please let me know if you another source!

Can I modify the to improve power?

(a) The standard is very restrictive (assuming you stock exhaust!) and can be modified cheaply (assuming you have to welding gear) to improve output. Johnny Davies Newark, Notts, supplied the instructions and excellent drawings: at the attached diagrams (standard and ) before reading the next bit so it all sense!

Cut completely through the weld where cylindrical section meets the ‘box’ then put back on bike and it up to find out which 2 pipes are the Then cut or drill through holding the other 3 pipes in then you can remove them. off original outlet pipe tail section.

Now you need 2 long enough to connect cut section to the end of the tail section used bits off the frame of an old fox mountain bike). Now you need to another hole in tail and file both holes out to then new pipes. Spot pipes to the 2 outlet pipes and pipes together for extra place tail section new pipes and tack in place weld up tail to box and finish by around the new outlet pipes.

you end up with a lovely freeish exhaust.

(b) Setting up the carb to the exhaust . It is possible to re-jet the carb using Kiehin What to use depends on what your TTR is. Early TTRs 142 main jet and 48 pilot jet though about 96/97 the main jet was a 147 and was a 50. Johnny’s was a later model so he a local carb specialist did Kiehin carbs, took in his jet and needle jet and they tried a round Kiehin main jet and it perfectly.

They measured his original jet and it was (apparently different makes of don’t always mean the no. on the jet is the size in mm) and suggested trying a 150mm, and 152mm (Kiehin). tried them all (about each) 148 no difference, 150 spot on, 152 too (like running with the on). Johnny has left the off the air box and has the needle on the standard position.

He is at different needles at the moment, he has left the mixture screw at 3.5 out compared to standard 2.25. The he used is:

Allens Performance R D, B9, Moorbridge Road, Bingham, NG13 8GG — tel. no. 836733, fax. 01949

You should get better power the range. Phew! Thanks

(c) Martin Wilson’s TTR had an XR400 pipe on it when he bought it. The brackets all line up, it just a small adapter pipe the tail pipe and the header

What brake pads (Info from Paul — thanks mate!)

brakes same as WR200, same as Serow, front as TS200 and RMX250. Part by manufacturer as follows with given first: Apico and BP002, Vesrah VD432/2 and FA152/2 and FA. SBS SBS648 and SBS SBS611, FDB659 and FDB497, Dunlop and DP411.

Good parts should have sets in but any dealer with a Hi level can get them next day if not in stock.

I use the sintered Ferodo pads as seem to work well on and off and last a sensible amount of Brian Eland likes the EBC pads which apparently loads of feel to the lever but are and he reckons they need probably after one rally and two rides as the pads are wrecked by (could be Brian’s wicked though!).

Yamaha TT-R 250

Fitting rear pads. courtesy Brian Eland. the brake guard off — the rear wheel spindle — loosen the front on the caliper body — it forward — open out the caliper to push the piston — take out the brake pin — you should then be able to drop the brake down then remove backwards.

On installation to put the pins in you to push slightly up against the chatter springs, Copper the brake pins very and only tighten very — if you over tighten the pin stick and it will have to be out — any doubt about the fit of an key into the brake pin do not put it back in replace it instead.

Oil filter is a off-the-shelf Yamaha part I used a Champion X313 time around (Yamaha No is — 1UY-13440-02-00).

Can I get a bash and frame guards for my TTR?

Yes CRD do them and they are available Taylor Sons. Unfortunately, I had a problem on mine and it took phone calls and a letter to going back 4 months, I got a replacement bracket. Also, the guard on the gear change doesn’t fit exactly on the older and you still end up scuffing the frame and the usual ugly rust although still better not having one fitted. -(

Where can I get a

a) The guy to contact for a manual is Gordon Customer Relations Dept, UK, Sopwith Drive, Brooklands, Surrey, KT13 OUZ (Tel 358000). A bound photocopy of an manual costs Ј20 — cheque payable to Yamaha UK and supply your frame If your TTR250 is Japanese like mine (frame starts 4GY) then a lot of the etc may be different but motor details be pretty good.

Or e-mail me for a CD ROM copy of the full manual for a TTR 250 for Ј5 (unfortunately the scanned are very poor but users said its still very

b) There is now a Haynes manual on: Trail Bikes 1981-00 2350, PW50/80, RT100/180, TT-R225, TT-R250, XT225, Available to Rides List at a discount from Mike at Merlin books — Covers only the American TTR250 play bike but a UK TTR owner who bought it says its very useful.

Wheel The wheel bearing on the TTR250 are Replacing bearings can be a challenge you get to know how they fit.

The are press fit into the inner of the bearings and you need a large or a press to get them out. uses very good and are worth paying the extra The bearings for the TTR250 rear are: 60/22RS and you need 3 of

Rear suspension linkages . It is that you take the rear links apart every and re-grease the needle bearings good quality lithium The TTR linkages are very well put with almost all links their own grease nipples. I mine down recently probably the first time its apart since new (6 years — and everything was in excellent apart from one split which needed replacement.

of front sprocket. It gets tiresome removing the cover time the bike gets any dirt just to clean it Johnny Davies has modified the to allow mud etc to escape rather build up into a nice lump around the front — pictures on the Yahoo — address at top of page. simple but effective.

The Y2K TTRs have a conventional driven by a front wheel so don’t suffer with problem!

When it all goes If anyone knows of a repair that has particular expertise TTR engines please e-mail me details.

Thanks to Terry for the following: There is a small called Vernon Motorcycles in Portsmouth. They sell and all sorts of bikes mostly and I have found them useful as most of the guys work there have Raids. The number is (02392)498558, probably worth giving a call as they have stripped and rebuilt their in the past.

Anyone with personal recommendations around the please let me know.

And to Nik Codling: thought I’d mention the service I’ve had from Crank in Waterlooville (02392 This place is great full of absolute perfectionists. specialise mostly in restoring old and re-building or even manufacturing like cylinder heads and

They did a good job on boring his apparently.

Yamaha TT-R 250
Yamaha TT-R 250
Yamaha TT-R 250
Yamaha TT-R 250
Yamaha TT-R 250

Interesting articles

Tagged as:

Other articles of the category "Yamaha":

Our partners
Follow us
Contact us
Our contacts


Born in the USSR


About this site

For all questions about advertising, please contact listed on the site.

Motorcycles catalog with specifications, pictures, ratings, reviews and discusssions about Motorcycles.