Yamaha

Hi, I need a new rear rim for my 1976 TY175, because the present one is cracked also its due an overhaul as the spokes are corroded. The present rim is a 18 x 1.85 with 36 spokes, with a 4.00 x 18 MT43 tyre fitted. How does this size relate to a WM size rim? Any ideas on UK suppliers? Thanks Triton

Which Oil is best for these older motors? Currently using Castrol TTS, but is it too good? Mixing at 50:1..........is this about right or could I go up to 60 or 70 :1 on a better oil. Seemed to run a bit smoky @ 50:1 Also what's the best gearing set-up - Rear is currently on a 48t. However I seem to remember somebody mentioning 9/51t or was I imagining it??

Looking for an answer, I have a TY250 with engine serial number consisting of a "2 digit number" followed by an "arrow". The number is appears stamped in with a flat screw driver or punch. The vertical lines under the number look original, I have another engine to compare it to. Does this mean the case was replaced with a spare part? Has anyone seen this type of numbering?

Can anyone give me details on a tubeless rim that fits a standard TY mono set yp i.e with Z spokes. I am worried about rim piercing giving an incorrect spoke angle. Thanks

hi im andy new member just acquired a ty50 engined monshock trials bike project has chrome frame and arm main frame tube acts as fuel tank under a cover, exhaust has link pipe into frame then exits below swing arm subframe no numbers pro engineered bit of kit will post some pictures I don't think its linked to whitlock or whitehawk could be early 80s any info ideas welcome thanks

I am looking to find a workshop/service manual for a TYZ250(purple forks) like attached images. Not sure of the age etc of the bike. I am hoping to restore the bike but this would be my first so any help would be appreciated. Thanks.

Hi, as above i have a ty 250 and when trying to start it sometimes the kickstart doesnt catch and it goes straight to the floor like theres nothing there? Ive heard theres a spring thats common to go on these bikes? Thanks, for replies!

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

Hi Further to my recent post - I'm making progress with some of the major parts needed. As far as I can make out these Japanese spec bikes had a conventional instrument binnacle and a battery box, has any one out there got a fully specced version of one of these or a good scource of pictures - I really need to know which bits are missing and what they look like (part numbers etc). I'm building the bike for light road use and to do some green lane days so any help would be greatly appreciated. Thanks Tim

hi guys i have oil leak from external oil seal on gear shaft i need toemov replace internal too but no idea how ? do i have to strip engine or can i access from removing left hand cover is it a big job any help appreciated thanks

Hi, I have a frame that shoud be a Whitehawk. Unfortunatly it had no footpeg. I am wondering if the footpeg are specific to this model or if it came from something more popular ? Itriyer the bultaco ones, but it did not fit. Ragards

evening all, does anyone have any alternative/s to the oem rubber part that fixes over the chain side of the ty 175 swingarm? thanks Andrew

evening all, my rebuilt ty 175 engine was chucking out spooge despite sorting out the jetting. However, having burnt out the exhaust for a few hours on an open fire, then cleaning up with caustic soda, then coke (which made it all shiny inside), the spooge has stopped, the plug is a lovely colour and the silencer end is dry. the bike also sounds and runs much better. if in doubt ............................... ...................... burn it out ;-]

About to repaint tank,seat pan and exhaust guard. Anyone in the States have a good color match paint code to order the necessary paints?

My ty pinky is a bit on the soft side on the front forks and rear damper. It has gas in it and was wondering how much to put in the front and where to i can sort out the rear one. What grade fork oil should i put in them.

Hi everyone can anyone tell me if a tyz rear shock will fit straight onto a tyr.Thanks.

I am trying to find a rear tyre for my sons big wheel ty80, it must be a proper block tread trials tyre . the tyre appears to be a 3.00 x 18 or 3.50 x 18, If someone knows the original tyre fitment even better Thanks.

Just out of interest can anyone remember these bike's in the dealers,ever wondered why the British bike industry failed, is it just a Yamaha with some British bits bolted on ? http://www.ebay.co.u...=item2c6a1a7332

Hi All, I've got 2 TY15's on the go, just started to strip the motors and have found that both clutch baskets have perceptible rotational play between the centre boss and the basket itself. They seem to be riveted together.... is this normal or would the rivets require a remedial hammering? This is yet another in a probable long line of questions during this dollar sapping process!! Thanks - Mark Perth, Australia