johnnyjazz

Thanks tony and Kia ora! i see from your profile you are from palmy. i lived 10 years in wellington! love kiwi mountain. i used to have a nice modern beta when i lived out there but im in NYC now and randomly stumbled on this old ty250a that i just had to buy....though its a lot more work than a modern bike that's for sure! esp for a novice mechanic like myself, its an enjoyable project. do you know of they ever make a haynes/clymer for the A model? ive never seen one online, only the B model.....thanks for all your help

Thank you so much for replies, esp -oni nou- for such a detailed, concise and thorough explanation. really appreciated! I spent the last hour or two googling and quickly realized the wealth of knowledge already there -going back decades- with regards this topic. apologies for regurgitating an already discussed issue, but thoroughly grateful for current help! @lineaway, yeah it all looks hooked up and turns but ive been reading its much better to get a new single cable anyway so think i might go down that route. is there any harm on just leaving it as it is (and starting to use premix) or should i remove it altogether? -and if so i understand i need to take the right side clutch cover off. is this something a novice could attempt or is it easy to mess up...many thanks always and i hope to get my training wheels off soon and get this baby on the road! best vibes!

Dear highly esteemed and revered trials friends, Thank you so very much for all advice given thus far, it is testimony to the positivity of the internet. Few questions for your delectation and perusal with regards the oil pump if any one is kind enough, i am a beginner so i hope you can be patient with me!.... I think its safe to assume this oil pump is not working. Is there any benefit to getting it operational again or is it totally best to go the pre-mix route- and what is the premix ratio- is it 32/1? Like i say im a bit of a greenhorn with the mechanics but getting more confident as i work through the bike. its kind of spiritual as i slowly get the bike back to nice condition, i feel like i am restoring myself too. (we're both '74) Were the original oil pumps that lamentable that everybody went pre-mix? - and trying to get my head round the engine...i can see the two pipes that have been blocked off obviously connect, but where does the oil dripper ring thing go that's hanging down...is that supposed to go inside the engine somewhere? also, am happy to donate to the site but cant see any links? Many many thanks and best regards from NYC, johnny

Thank you so much!! what a wealth of kindness and knowledge here it is my hope to be using it as a trials bike but only vtg/novice clubman class at this stage... ive just been trying to make it look nice and get it ready for its road inspection/MOT.....

hello esteemed and revered trials friends, i really hope i'm not outstaying my welcome here and asking too many questions but was wondering if one of you super knowlegable vtg TY trialers would be able to offer me some advice on how to tell if i would need new rear shocks? ive heard/read the ty250a can be greatly improved by new shocks, but are the ones i have on the bike ok?- or is it a given that they are 43 years old they should be replaced esp if i will use the bike on the road? pls see pic as hopefully that is a better indicator of condition. they seem to be ok but i am no expert. also (sorry!), with regards the front suspension, when i brake and the forks compress i can hear metal banging on metal. does that mean i need new springs in the front forks or just an oil change? with many many thanks from a novice and very best regards from NYC.

im afraid i dont know what the standard versus trail footpegs would be... here is a pic of the pegs for you and maybe you can let me know!.. is that 'long trail' seat standard from back in the day or something that was added afterwards? many thanks for everything, im learning so much here

just wanted to let you know, that armed with the wiring diagram and a circuit tester i figured it all out! lights all working perfectly now. feeling more confident with each job

wow! thank you so much for all your awesome help and kind advice. learning so much everyday and most grateful. at your suggestion i will keep it at 12/53. i only want to potter around the back streets of brooklyn where the average street speed is 25-35mph getting to some off road places i know to practice trials. i have no intention of going on the expressway! it would seem 4th and 5th have enough go. i like your shakespeare quote too. Thanks again and best vibes, johnny

hello friends, sorry to be a nuisance but was hoping if someone would confirm that the original gearing on a '74 ty250A is 14/53....i often see it said 13/53 was the original gearing? the bike has 12/53 on it now. my question is, if i put a 14 on the front how many link chain would i need..is it 110 or 114? would the bike then suck at trials tho? seeing as im going through the hassle of getting it road legal be good to keep up with traffic! many many thanks from an mechanically ignorant green horn in NYC!

hello friends, new here and just got 74 TY. bit of a novice mechanic but feeling more confident as i progress. received some great advice from 'feetupfun' about changing clutch camshaft oil seal which i did today and awesome result. no more leak! thanks so much pal! my next quest is getting it legal for the road in NYC. it already has a title and is registered in NY so its just the inspection/MOT. when i got it, the front headlight didn't have a bulb though the rear tail light worked and the stop light worked fine also. However, after putting in a new front bulb (which works fine) the rear light doesn't work at all now. also, the high beam/low beam switch seems reversed on the handlebars and the engine run/kill switch seems to be wired to the headlight. my question, is this a big fix and i should take the bike into a shop or is it something i could attempt myself? i have a multi meter but no experience in this dept. also whats the advice on a horn? is it better to wire one in now or can i use a bulb type? i just got a great bike that had been in a man cave for 30 years (was on a farm in Philadelphia from new) and would love to bring it back to its former glory esp as i have managed to get it registered and titled in NY state.. i used to ride Ty250s when i was a kid learning in the 80's. feels wonderful to be getting back into 'vtg trials'. i think i must be the only person in NYC into trials but luckliy i can practice in a warehouse a friend has really looking forward to getting the inspection sorted so i can ride to empty lots/construction sites/car parks and hone my skills! sending best vibes to you all and any advice is really appreciated!!! attached a few pics of bike. thanks so much, johnny

after re reading your kind advice and digesting it and looking at pg 70 of my service manual it all makes sense! and i see why that screw didn't budge if it has a lock nut on it! thank you again.

Thank You!!

hi friends, if anyone could help a newbie out and talk me through changing an oil seal on the clutch actuator arm id be very very chuffed and extremely grateful. if its super easy then please excuse my ignorance but im just getting started with the spanners! i don't want to bite off more than i can chew but its dripping oil from the clutch actuator arm. I have a 1974 TY250A. extremely good vibes to anyone kind enough to help! best wishes from NYC