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As always it pays to search on TC site: Air screw 1.5-2 turns out from full in Main jet 100 Needle position 3rd groove from bottom Float height 16mm ? Spec from Twinshockdude?

If you are wearing proper trials boots these should offer the type of protection you appear to be enquiring about. Sounds extremely painful and I hope you are healing up ok?

Offer £800 and settle at £890 its not worth any more. The fact that the logbook shows a later year of registration is only an indication of when its been put on the road. Bilko has given you the information to help you get the price down. Ask the owner if he has any purchase information for his purchase of said bike. You are the one paying the money and the bike is already of dubious year, play on this and walk away if necessary, but leave a contact number.....they might give in to you. Unless they belong to TC and are reading this!??

How much do you value your head, enough to use an extremely old out of date helmet....even though it may look cool or in period....If its 1969 its probably cork lined and the fibre glass is possibly degenerating as I type this! Keep it for display but dont use it. Compared to a new purpose designed trials helmet it will be quite heavy in comparison??

The Italjet was a bit of an underdog as it so closely mirrored Bultaco in most of the components. I had a 350 and was really pleased with the bike although I did not keep it long. It did everything competently and if maintained properly was reliable. It certainly stood out from the crowd resplendent in its bright green livery. ?

When you put 2 and 2 together you end up with 22?Seriously though agree with your theory on float valve size?

Wish they were in my workshop!?

?hello

For plastics they certainly appear to be expensive, but at least they are available. As they say “cheaper than msking them yourself”.

Suspension linkage prone to wear, mainly pivot points and bushes. If its been well looked after the bike you are considering may be a good un! Check steering head bearings for roughness and play, stiff or notchy steering. Suspension should be plush and smoothe in operation, feel for the damping effect when bouncing the suspension. In reality you arent getting a new bike and it would be reasonable to expect to find some faults at this price. Engine sgould start easily and idle well, throttle response should be crisp and almost instant at the blip of the throttle. No excess smoke, but then again some smoke is to be expected. As a rule with most older trials bikes you can expect to be spending a few pounds getting the bike the way you want it. Ive not mentioned some items as these appear to have been accounted for by the current owner. Clutch and gear selection should be relatively smooth but expect a bit of clutch drag when the bike is cold, this should ‘go away’ as the bike gets warm and the transmission oil warms up. Give the wheels a good wiggling and feel the spokes.....you should already know the ropes from your other sport.?Enjoy

The company might have actually produced quite a few more bikes than was declared on the accountants balance sheets, money being needed etc etc. I would not be too surprised to find that some bikes carried the same frame numbers etc. or no numbers at all! I could be wrong and would not want to accuse anyone of milking the production figures.

Ultrasonic cleaning and close attention to original manufacturers settings should see good results. Checking for air leaks in the induction system is better carried out with WD40 or similar maintence spray, less chances of fire especially if using starter fluid. If there is an air leak...usually at a flange gasket, then the engine will draw in the liwuid and evidence itself as smoke from the exhaust...do this outside in a well ventilated area?

Get bike nice and warm, gently begin to lay bike over to one side until almost laying on ground, throttle should be held near to wide open, allow engine to clear its throat, consume excess oil out of crankcase. Repeat by laying bike on opposite side, approx. 30 secs a side. The old ways are sometimes the best! Bear in mind the exhaust will have oil hanging around in it and as suggested a good thrashing....sounds bad doesnt it...but a good blast along a trail at speed should help clear out some of the oil?

Kickstart quadrant possibly worn teeth. The water pump and clutch slave will need to be pulled off to allow the case to be removed to expose clutch and kickstart. If you lay the bike down so that the side you are working on is uppermost then the transmission oil will stay in the box. I think there may be a video on Youtube that will help explain what you need to undertake.?

Intrigued to know why you need this information. 1250 units was the planned initial target for the 272cc model, which at the time was said to be the worlds lightest trials bike at 64.5kg empty, if that included transmission oils empty as well is not clear. There was another batch production target of 2500 but I do not know if this was ever achieved. Still a beautiful creation in my opinion?

Perhaps a call to either Sammy Millers Museum or In Motion would give you the best info on throttle type. These knowledgable people may also help with the handlebar specs to.?

If a dealer is serious about selling, some will usually have test days or a small test area available to them. Dont expect a dealer to offer rides on just any new bike though as effectively firing up a new bike for a test ride renders it second hand....would you buy a brand new bike thats already been ridden by all and sundry. Its easier for tests to be had on used bikes for obvious reasons. Demonstrator bikes ...which one of the range should the dealer commit to as this is an investment down to him, with little financial help from the factory/importer. Plonking a trade plate onto a trials bike is not the same as for a road bike, its up to the dealer to assess their customers intent, riding on the road gives little idea as to the bikes abilities. If you mean a new to you bike but second hand then by mutual agreement the seller private or otherwise may allow you to test the bike, if an area is available. I used to have a compound at the rear of my shop for just such a purpose, with a skip and a few obstacles to negotiate. Police station next door so noise had to be controlled. I also used to advertise test weekends where a local quarry owner allowed me full use of the area where they trained earth moving equipment operators. This had ample parking for customers that came from far and wide. Here the importer was very helpful in providing a few bikes from their press fleet. Happy days?

Nice looking bike? So thats three councils that could be chasing you for rates etc?

Ah and you have guns! Do mean trolley jack or do you literally jack up your floor?

You may well spend an awful lot of money trying to sort out this problem. At the end of the day the integrity of the unit has been compromised. You could cut the base out and get an alloy tank made to fit inside....a bit like some Montesas, but that will be costly unless you have connections with the sheet metal trade. Shedworks do a neat replacement that is far nicer than the Miller item and its made from ethanol resistant resin at £350 approx. Did Miller do a unit for the TLR?? Another alternative would be to get a petrol tank from a lightweight bike or moped and utilise that, this can work out ok if you dont mind the bike looking different to the norm for a TLR, of course the seat would need sorting, possibly you could use the Miller seat section.

Its all about limits and fits. Mass produced components have only a finite tolerance acceptable for mass assembly, so depending on quantities say 100 cylinder barrels bored to the specifications may be plus+ or minus- but still acceptable to be married up to a piston again + or - in specification. Thats the beauty of having a new piston and a rebore, the engineer will match everything closely to the specs, more accurately than at the factory. These limits and fits are the reasons some engines are noisy mechanically and others are quiet when new.

Hi wuckfitracing, your location needs attention if as you state that you are in Worksop Notts. Pictures of this very special Yamaha TY 175 Whitehawk would be very nice as I am sure that I am not the only one thats interested to see what is by now quite a rarity. There are no stupid questions only stupid answers so dont be afraid to ask away?

It doesnt really matter what bike or machine you have in your garage, shed etc. If Pondlife want it they will get at it and nick it! Even if you had five or so alarms....which usually just get ignored by everyone....it would not stop them. A neighbour has CCTV of some hoodie wearing yuffs helping themselves to the contents of a nice new Saloon car, wallet and credit cards..that’ll do nicely ta! You have to ask yourself about the sanity of some people! Make your shed or garage door obviously reinforced then that just attracts inquisitive observation from the wrong people. A warehouse owning bike collector keeps his bikes on the second floor, the only way to get any of the bikes out is to use a fork lift which he keeps in another building. Even plod would want to know what a yuff in a hoodie driving a fork lift down the road was up to.....and it aint practicing for his driving test!!! Take the wheels out, put them somewhere out of sight....put the rest of the bike on the bench or again somewhere that allows you to cover it up and disguise its shape. These thieves will be looking for any bike not just trials machines. Leaving the bike for a long time and its worth removing the forks, handlebars and rear guard just to spread the bike about and make it too hard to steal in one go. Thats the good thing about a trials bike, not so easy to do for road bikes and the like though.

A married man with a girlfriend, this is getting juicy....TV spin off reality programme even ...Marriage on Trial...or On the Rocks....or What rubber to use?Of course you will have to include the Gay???‍♂️??‍♂️fraternity to! NOW I understand about the Lycra gear...

Cant beat studying closely?