Yamaha

Hi, I have just collected a ty250 twinshock and have a couple of questions, hope someone can help. The frame and engine number begin 493-2, am I correct in thinking it's a 76? It has did japan wheels too. The frame is blue and the tank and exhaust cover white with blue decals on the tank, is this a standard frame colour as I have never seen one before? Also the undercoat looks yellow so maybe it's supposed to be yellow but it does look like a factory kind of blue paint job? Can anyone help on this? It's a uk bike as far as I know! Future plans are to fix up to trial then restore when time permits. Cheers

hi,my ty175 is leaking oil from behind the front sprocket,been on tytrials uk ,and ordered output shaft collar and a new oil seal,is it just a matter of pulling the old shaft out and removing the oil seal and replacing ,thanks.

She runs great http://i633.photobucket.com/albums/uu54/pa...22070626002.jpg

Is there parts avalable to rebuld a TYZ motor ( rod, pin, piston etc. ) Guy

I have rebuilt my sons TY80 after the output shaft sheared. New shaft fitted and on with rebuild. I have 1 thing am not 100% sure on . Does the selector drum have to be in a certain position before putting the rest of build together ?? i presume it should be in neutral as i stripped it in neutral if correct but am not sure . please see last to pictures with different positions any advice would be much appreciated. Thanks Aidan

I have a couple of TY 250 ( 2A and 1B ) and I am pretty sure that I could do better with the air intake. I run Mikuni round slide ( std VM 26mm ) with the exhaust is clean on my rider and a KT250 motocross silencer will be install on my project. I finaly found the correct jetting on the Mikuni VM, now low end and midrange torque are a lot better than with the small 26mm Mkuni of the B model and the poor KT carb from the A model, and throttle response is quick and predictable. But, I think that the air flow is not as good as it could be, so I am thinking changing the standard air filter system. Availability is not so great in Quebec and I don't want to order 265 thousand …

Hey anyone out there got info on how to convert a 175 to 200? i've been told there could be a couple of ways? I've access to a machine shop,just need to know the best way and what parts to use.Cheers.Pat

i am looking for a rear wheel for my serow they seem to be like hens teeth- except rounder with more spokes- ahem i look forward to hearing from you kind regards, andy.

hey, i was wondering if anyone has a spare tyz fan that the could sell me. the pipe on the bottom of mine had came off an water and loads of other crap had got inside and now it doesnt work i have had a try testing it and it doesnt work, so if any one knows where i can get one of these for cheap please tell,also does anyone know if the fan off a scorpa 250 will work because it looks pretty much the same size. thnx, Ross Leslie

Hi, Can anybody tell me if the shock length is the same for the standard TY80 and the Big Wheel Whitehawk 80? It's got non standard shocks at moment and looking to replace them. Another question, does anybody run a 21" front wheel on theirs? It's had a 18" rear fitted but still got the 20" front usual tyre issues! Thanks.

Hi Been stripping the paint of a recently aquired TY250 (59N) and found the number 75 stamped in the top frame tube about an inch back from the headstock. Really small numbers and obviously from the factory as they were not visible until I removed the paint. Anyone got any idea what they signify. Cheers Tim

Is anyone using the DEP rear muffler for the TY175? If so 2 questions: 1) Is it fairly quiet? 2) Does it have a recess for an O-ring where the pipe pushes into the standard TY mid-box to ensure a good seal? (like the standard TY175 rear muffler has) cheers

i am thinking on buy in a tyz 250 and would like to know any info on how good are they and what the most common things go wrong on them if any one can help i would be most great full also i thinking of buy in a ty 250 mono so witch one is the best

Had to post a picture of the TY175 with it's new tank, little paint, 13.5" shocks and some mud. Before Now Alan

Does anyone have a contact at Betor Shocks? A little more than a year ago I bought a pair of Betor shocks for my TY80. When the shocks arrived I had the wheels apart and was getting the rims chromed and installing new spokes. The wheels were completed, new tires installed and shocks installed in August 2010 and the bike was ridden about 20 minutes. The seal in one shock started leaking and there is a green piece of rubber sticking out from inside the seal. I returned the shock to Matt at Speed and Sport where I bought the shocks and he has been trying since October of 2010 to have his distributor replace the shock. At the time they sold me the shocks Speed and Sport…

Hi, Do you have any opinion regarding available friction plates for TYR clutch, any brand to prefer or to avoid? Ref to the manual thickness 2.9-3.1mm is ok. -------------------------------------------------------------------------------------------------------------------------------------------- Did replace the springs some years ago but will test EBC harder, all or just 3 and evaluate pro/con handling/performance. Have removed worn marks on the basket as well... Last week some long muddy sections required full thottle 2 gear speed from standing still... The improved throttle responce/engine performance now move the focus on clutch/grip performance 2-> gear. …

The big question! I am working on a TY frame and motor project that up to now was very clear. I have 3 A ( 434 ) motors one is in my std riding bike and I would prepare another one for my project, complete overall including a little porting, head reshaping, squish calculated, timing and flyweel weight removal. But yesterday I was offered a B ( 493-1... ) complete Ty. Now you know my question. I rode C and D model so long ago that I cant tell the difference between them. I'm not looking to start an argument over witch one is the best, but I would like your input on both model A and B. This motor will go in a D modified frame. Soooo... what do you think?

I'm looking for help with any bearing codes from those of you that have manuals for the TYZ. I'm looking for: Wheel bearings Head race bearings Swing arm bearings Suspension linkage bearings Any help AGAIN would be greatly appreciated.

hello, I am trying to restore a ty125 and i do not know the exact paint colours. can anyone tell me the exact colour for the frame and also where to get items powdercoated? thanks in advance

hi there restoring an old majesty 250 does anybody know the ral code for powder coating the frame . also the nearest yellow for the petrol tank many thanks steve