Aircooled Monoshocks

Hi, Was NVT175 sold as a trials- or a MX bike? http://cgi.ebay.co.uk/Norton-Villiers-Triu...=item2c535b8901 cheers,

Hi im new to this forum but wonded if any one has got to the bottom of the pinking rattley engine as the more ive read the more im confused as some say no head gascket some say two are three blocked pipe or poor fuel and to add boost adatives what do i need to do as mine just chaters of idle and on low revs but have had the bike checked out and the guy carnt find anything worn that would coures this .cheers peter

I am thinking of building something a bit different, How far can you go? is the only criteria air cooled motor or is like the twinshock can of worms?? I am thinking of modern frame with c90 honda power (or lack of it) may try a little 80 gas gas or beta,

Does any one have any advise on main bearings as it got to be that that clanging away as i rode it yesterday for the first time and it clanged all day but ran ok .What i would like to know as in a month time im going on a weeks trials holiday .Do they just get noisey are do they aventually go bang .Also what kind off expense am i looking at too have a engine rebuild and any recomendaions who could carry out the work any advise would be welcome. thanks peter

My little project that has kept me busy over summer - cheers.

Hi all Anyone know the torq setting for the front sprocket nut? I have online ty350 manual which covers most of what i need for my 250, but no reference to the front sprocket at all?! It does have a table of torq settings based on nut size, but it only goes up to 20mm and that’s 130Nm!! thanks

My 84 Yam TY 250 mono has Z spokes with the gold colored rims. There is some lateral runout of about 7mm over 30 deg of the front wheel. How are these wheels for truing? I've never tried truing a Z spoke wheel before. Also, is there a wheel from another bike......newer perhaps, or from another model of Yamaha or other make that would work on the ty 250? Wondering if replacing the whole wheel is any option at all? Cheers.

hi any info on chapman bsa as just got mine out of shed after 9 yrs looking at v5 and frame no /engine no all match no 0618 not sure if it is no 6 or 18 the first keepers f lewis of worcester as reading forum they say only 20 were made

Hey All , Got a project coming coming my way from my Buddy's ( whose passed away ) Son , to get the Ol' girl running again . Apparently needs a kick start shaft for starters ( no pun intended ) . Couple questions . Wasn't that a 1987 model and where might be the best source here in the States ? Any worthy mods anyone might be aware of ? Cheers ,

I will be possibly looking at a fantic 403 monoshock aircooled drum brakes, as a beginner could I get through a few years of trials, and ridding with the locals and maybe at my first couple of events with this bike. Or is it hard to compete with the older bikes and a waste of time and money (tight) should I save for longer and get a newer bike or if it is in good shape go for it? Do any of you compete with your bikes and do OK? Dan

When running, I've oil dripping from gear change shaft, easy fix or engine split ? Ty250s

My Cota

hi guys im in the middle of sortin my ty250 mono you know that 40 quid pile i bought anyway its got a steel tank on it and its quite rusty inside and was wodering what i can do to sort it , it already has bits rattling around in the bottom and i wondered if there is anything like cure rust i can treat it with , might sound like a daft question but ive been outbid on every tank on evilbay thanks ps anyone know where i can get a tank cover?

Hi...My TY250R mono starts 2/3 kick and ticks over fine, once I kill the engine walk a section and go back to kick it over it wont start, I've tried leaving the petrol on/off but no joy, anybody else experienced similar ?

Besides the obvious disc brake, graphics and I think rear spokes is there much differenc between the TY mono with red frame and plastic tank and a Pinky. Not fussed on the TY with a steel tank. Thanks in advance

can anyone cast there minds back to when the ty250r / pinky ruled the roost! what were the best mods at the time? ive got a drilled out alloy sprocket guard and a alloy mick andrews tailpipe plus a pad (bultaco type) chain tensioner! /HEBO pegs! thats it? what have you done to yours to make it work/look better?

Wrighty called me this evening and mentioned that he is short of a Garelli and a Moto Gori trials bike for his show next year. There are a number of themes to the 2010 show and Italian Twin shocks is one, he would be very interested in speaking to anyone who has a nice example that they might like to display. Pete

Hi Can any one tell me can you still get the stainless Pro Monty exhausts for the TY. I have a number and E mail but have had no luck in getting an answer so far.

hi can anyone let me know where to download or purchase a manual or parts diagrams for the ty250 monshock or pinky thanks

I've just rebuilt my 87' garelli engine and am running it in, different people have told me different things heres what i've been told so far!! 1 tank of fuel, 3 tanks of fuel, 1 Hour riding, 10 Hours riding, Well i've done about 3.5 hours so far and only got tommorow to go before the trial on sunday!! Any more running in suggetions???