Yamaha

Hi can anyone tell me if it's ok to goto a 1.60x 21 wheel instead of the standard 1.40 x 21 wheel on a 1976 ty175 kind regards Andy pooley

I have just bought a 1977 Ty 125 off Swiss e-bay (Ricardo). It is very tidy but totally gutless! Are there any quick fixes that can be done at home to liberate a few extra horses? I wonder if it was maybe restricted for use as a learner bike?

Eh op all . Trying to source a manual any ideas , links or leads . Thanks in advance Dave

Hi there! Just purchased a 1977 TY250 and it is missing the left hand flywheel/magneto cover. Does anyone have an extra?

Can anybody please tell me what weight oil I should use for my 1977 TY250 forks? I weigh about 170 pounds. I also wondered how much oil needs to go in each fork leg? Thank for any help offered. Paul

I have a 1977 TY250D that I think is a Canadian model. I once had a TY175 that was from Canada and it was white and red like this 250. All the other TY250D's I have seen in the US are a light blue. Does any body know?

I just got a TY from Canada, about 3,000 feet or 1,000 meters higher than Maine here at sea level. It won't run without the choke at idle. There's green slime in the carb on everything made of brass. I'm wondering if a re-jet is required, I know it needs cleaning at least. Are there recommended jet sizes to start from? Also, someone removed the oil injection, but I see a line to the intake in the front of the carb from the pump, and I was wondering if that should be plugged off. Back in the 80's, I removed the oil injection off a Suzuki TS185, but I drilled holes above the main bearings so fuel mix could get in there and lubricate them. Before I tear this all apart…

Evening all, Recently purchased an immaculate '78 TY 250 that has been dry stored in a hall cupboard since 1993! Removed the carb to give it a clean, however it was gummed up beyond cleaning. That was solved by purchasing a Dellorto PHBL 26 from Craig at Yamaha Majesty shop. Got that fitted this evening and she fired up fourth kick! I have removed the two stroke oil tank and I have replaced the throttle cable to one that only operates the slide. So to cut to the chase - Is it best to leave the oil pump intact? Or remove it and fit a blanking plate? I would have thought that if it were left it would seize up due to the absence of any lubrication. What are your thoughts…

Hi. Bought this bike a while back and always wondered about the exhaust shield. Has anyone seen one of these before or is it a DIY job. Also were the one piece tank and seat units fitted to some bikes from new, or are they always an aftermarket addition. Any info welcome. Thanks WD

Currently doing a full restoration of a 1978 TY175 ? Anybody know what colour the frame and swing arm should be. It's got so many layers of paint on it it is hard to tell if the original was red or silver. Also what colour for the chain tensioner ? Any help much appreciated. gareth

Hi, I'm new here, new to trials, but not new to motorcycles. I ride mainly KTMs, however I overhauled a 1979 CanAm 250 last winter. I use the term "Overhauled" because I have no intentions of a complete restoration at this time. I just want it safely ride-able. So I picked up a non-running 1978 TY175: It is in fair shape, complete, but with a few problems. Carb floods out and bike will not start due to flooded condition No air filter, ordered on Partzilla Oil pump off, but it does have the split cable, I ordered a single cable matching engine# and I have a 1979 frame as well, no other spares My switches…

Hi, just bought TY 250 and the castle nut on the rear wheel spindle is tightened up way past the holes for the split pin, is there a spacer between the wheel bearing dust cover and the swing arm on the sprocket side? Cheers Andy

A 1978 TY250 was left in a stable of a house I bought. After 20yrs of looking at it, I thought I'd get it going. The job was nearly done, but I fear I've just messed it up. The last step was installing a new carb, after which it started fine (multiple times) and sounded decent but did not have enough revs to tick over when the throttle was released. I was adjusting the Idle Adjust Screw, turning it clockwise, and starting to observe an increase in idle revs, when I realised I'd left the choke on. I turned the choke off, and the engine died. Since then I have not been able to start the bike. Not even close. Suspecting that after many failed starting attempts I had flooded …

Hi All, Hoping someone can help... I have a 1978 TY250, but it's very flat when accelerating from the bottom. I have taken the flywheel weight off and that made a difference, but it's still quite flat and needs livening up. Any suggestions? Many thanks.

Hello, I bought a TY 175 Road Registered brand new in 1980. I just bought another yesterday that looked almost the same but with no lights etc. and this one had never road registered. I remember stripping mine down and painting the frame red in 1981. I remember going to shirts workshop when they were building the Majesty's but could never afford one at the time. This one was advertised as a good runner!. After getting it back and attempting to get it running. We ended up stripping the fuel system. Tank off and flushed about 20 times to remove massive amounts of rust buildup. Carb off and cleaned out no damage to needle or slider jets etc. Std 240 Main. We coul…

Anyone selling a light?

Hi I've just acquired a project to rebuild for my son. It's a loaner so I'm not looking to restore it to prestige level. Right now I'm just trying to get a spark out of it before I take the engine block/carb off to clean that all up. I've been looking for a manual for it and the Haynes manual has a picture of a Suzuki on the front! I found a download site in Australia but the manual was in French. I really don't want to be taking the flywheel etc off without some guidance so was wondering if anyone could point me in the direction of a UK manual. Thanks Tim

Hi all, I don’t want to be ‘that guy’ by asking a whole bunch of questions here rather than doing my own research however… I have found and am about to buy, subject to a visit, a fully restored 1984 TY250 Mono, (in Canada) and not being any kind of expert on these bikes, I would hugely appreciate any advice or things to look for on this bike. I’m not looking to modify it or tune it, not at the moment anyway, rather to learn/update skills and have fun on it. For perspective I am an older guy with 40+ years of riding experience on all sorts of bikes. Thanks in anticipation, Chris

Hi could anyone who has a stock 1984 TY250 Mono take some dimensions for me : all the dimensions of the bracket between the head and the frame on the seat panel the distance from the knobs that locate in the frame at the back and the front edge where it meets the tank the total length of the seat panel Many thanks Davey

My 1984 TY250 mono came with a front disc brake conversion. It needs to be rebuilt but I don’t know the type of calliper or master cylinder to get rebuild kits. Does anyone know?