Yamaha

Hello Has anyone put a 24mm Flat Slide carb on a TY175? I'm thinking about putting one on but is it worth it? I've already done most of the mods you can do to a Stock Ty motor. Ie.. 200cc big bore kit and porting to the jug and Head. SM exhaust and a shorter head pipe. Alum. air box for better air flow. Better reeds and reed spacer plate. Some of the weight removed from flywheel. Don't get me wrong the motor runs great. And pulls like a freight train. I would just like it to pick up the revs a little faster. Thanks and here is a Picture of the bike

I've seen a lot of ty250s in my day but these are kind of interesting (mainly the silver one) Interesting points: 1. original owner said they were purchased new from the dealer in these paint jobs. 2. The silver one has a 23" front wheel w/ good fender clearance. 3. Again silver one has a strange swingarm w/ 2 shock mounting positions. 4. Frames are black 5. Skid plates are different one is welded aluminum, other is fiberglass 6. Funky air conversion is that on the fork Anybody have any thoughts on this stuff? Could any of this stuff be stock? Let me know what you think.

Hi everyone just a question where are all the ty mono at. I have had a few over the years but know have a gas gas,I am thinking of buying a ty but i cant seem to find any for sale. Theres loads of twinshocks out there but a lack of the monos.Where are all these bikes at.

I know oil threads are probably taboo but here goes anyway. Just wondering what brand of injector oil is best for a 74 ty250. Full syth or dino oil? Also should I get specific 2 stroke trans oil or is atf the way to go? thanks for any help. Fergie

Hi Can any one tell me where i may get a Larger capacity airbox for my TY. Many Thanks Ian

I am trying to build a tubeless rim onto my TY175 hub, have had trouble locating a hub in perfect condition, I have one spare hub that has some of the alloy casting broken off and another one that is perfect cosmeticaly but has a worn brake lining, has anyone had brake lining repaired and if so where and how much (my main rear wheel that is perfect I am going to retain with a tubed rim for any trials that won't allow tubeless tyres), it's for my majesty rebuild which is nearing completion will post a pic or two soon.

can anyone let me know what size a 320 bore should be Thanks Dave

Hi I've just got my son a very vey nice Whitehawk 80 . He is 9 and curently rides (and wins ! ) on his TY80 and doesn't want a modern bike to step up to (yet....) hence the whitehawk. Size wise it's probably a year until it's OK for him. There are some very small odds and ends to tidy up (nothing really) but the shocks do need changing. They have no damping hence just spring ! What are the best type, bearing in mind my son's weight (not a lot - about 4 and a half stone)? cheers John

I have a 44(H) 1984 TY250(L) and I am going through some confusion with spark plugs and resistor caps. The manual says (yes I have the original manual) use Champion N5G - most cross references map this to NGK B6EV. However on http://www.yamahaty.com/english/bougiesen.html he maps the Champion N5G to B6EVX (high performance - no resistor). Any mono owners out there - what plug do you run? The previous owner was running BR6ES with a plug cap that has a resistor in it as well. Does the resistor really make a difference? The only thing it does is reduce noise - does it interfere with the CDI? thanks

Hi everyone, I'm trying to locate the timing marks on my '85 TY250 mono but my manual has been 'thumbed' so much by the previous owner that I can't make out from the photos where/what the marks are! The flywheel has a sort of long scratch mark running across the flywheel weight-band towards the crankcase; and the crankcase itself has what looks to be a [chiseled] 'vertical mark' on the mating face that the ignition cover bolts onto. Are these what the manual is refering to as I can't find much else? I'd post a photo but I'm not that clever! Even if I do it static via the 2.8mm BTDC with a depth gauge down the barrel, I still don't know where, and with what, to line the…

I just got a ty250 mono. Great condition. Total pain to start. I pretty sure the carb needs cleaning as the float bowl overflow keeps dumping out gas. Any tips or tune-ups I can do to make this an easy starter? thanks

I have a Yamaha engine which has had the gearchange shaft sawn through and the splines removed. All I have left is a round bar of approx 25mm in length. The challenge is to make it useable without splitting the engine. Any ideas from all you bodgers out there????

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.

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've had my TY 175 for a few years now, but the other day I decided to put the lights on it. everything works fine apart from the brake light, that's powered from the yellow wire, it's came off the coil and I can't figure out where or how it goes back on from the wiring diagram in the manual any help would be great, Thanks

Anyone know where i can get a 2nd oversize piston kit for my Pinky? Ive tried JK Hurst and Ty trials with no joy, not tried birketts yet..

Can anybody help me, I'm looking for a TYZ manual. I've tried all over the net, called Birketts and Haynes and nobody has one any where. I've recently bought a TYZ in WELL used condition, with the goal of restoring it. Can anybody help?? Cheers Lee.

Hi I purchased a ty 175 in Wales back in 05.Today the guys at Ty trials in UK told me its git a RamYam frame,is there any more info on these frames or can anyone put me in contact with Mr Rex Pile.i tried to post pictures of this bike but failed.The frame is the same one as on yamaha ramyam.com.

In trying to remove the flywheel on my 85 ty350 I could not get the flywheel puller to thread in and I know it's a left hand thread. So I bought a new puller just in case I had a bad spot on the old one. same results. Does anyone have a alternate method for these?

Hi does any one know the standard Ty80 gearing on front and rear sprokets?, also what gearing does your ty80 have? Thanks Ben