Aircooled Monoshocks

This is when bikes were bikes.... and we fell off more A good shot of Eddy Lejuene on his Merlin DG 350 FIUS for 1988 - (where's his glasses?)

Hi,I have recently bought a TY250 mono as an introduction into motorcycle trials, I decided to rebuild the bike from scratch and upon stripping the engine it has thrown up some interesting modifications which I hope someone could enlighten me on. The piston is I've been told is an IT 175 at 66.5mm diameter, the rod is different, Its a 214 but possibly same length as standard. The barrel is 10mm shorter than standard and the crank throw is shorter at around 63.5 in length. There seems to be quite a decent porting job in the barrel as well. It also has a lightened flywheel. The frame no is 15. Someone told me this is an early conversion by John Shirt to build a more revvy m…

I`ve had a pinky for a while and when I bought it had a number plate with a reg but no V5. The seller said it came with a spare mudgaurd on but couldnt remember for sure. As I`ve just sold my roadbike and could do with switching my insurance policy to keep my no claims ticking over I would like to apply for the V5 but is this likely to cause problems. Anyone know of a way of checking the reg with the frame numbers to see if they match. I`ve ran a vehicle check with dvla and it comes back as a 91 yam but thats all.

Check out the japanese police in action!!! http://www.youtube.com/watch?v=sC2WqrKjfPc...feature=related

With the cable disconnected I have maybe 20mm of free play on the clutch arm. Am I right in thinking I need to screw the adjuster on the pressure plate in to remove this free play then back the adjuster off a half turn maybe? The biting point of the clutch is near the end of the lever travel, the friction plates look ok. Is there a stack height for the clutch plates? Cheers.

Looking for some advice is the rear shock non remote type interchangable with the type with the remote as my shock is not very good and i have been offered a good shock with remote hopefully this will fit look forward to replies Alan

Are there anny specialist dealers for AC mono parts in Europe? i am looking for specific parts for a Fantic 305. Just mounting new footrests was a lot off work as i am trying to keep it as close to original spec as is posible. So this means no welding to reposition the footrests and as litle modern parts as posible. Personly i am a strong believer in keeping a classic original, i think that is part off the classic trialsport.

Does anyone know the offset measurements for a TY 250 Mono rear wheel (drum brake)?

There is an Armstrong TA280,(The alloy framed Rotax engined one.) for sale - advertised on the VMX Competition website.It appears to have frame number 1 and be connected to Steve Saunders.My question is - what do members think this bike is worth ? The asking price is

I am looking for some kickstart gears for a 1990 mont 310 same engine as 309,307 ect anyone any idears ?????????? please dont say sandifords

Anyone know if there is a place (preferably in the USA) that can rebuild a mono shock, shock absorber? Thanks, Jim

just purchased a 1988 txr and wondered if anyone knows where to get spares. cheers

Hi, I'm thinking about lowering the foot pegs on my pinky. Is it a worth while mod bearing in mind I'm going to have to pay for the work to be done and will it detract from the value of the bike ? Cheers.

Does anyone here nows how I can get a promonty exhaust for my TY 250 ? I send a mail to promonty, but no answer.... tytrials offers some, but they want 249 for it, I found that a little bit to expensive.....

Hi, I'm thinking of having my Pinky shock serviced, can any one recommend someone here in the UK ? Thanks.

Looks very strange.........

I'm going to start putting the hiro engine back together soon and was wondering if anyone had an engine manual????? it's from my garelli 323 made in 87' nearly the same as the armstrong 320 hiro motor. Help please...??

Hi Anyone know how to clamp the damper rod without damaging it so I can unscrew (I'm assuming its screwed in??) the damper from the shock base. I've tried a couple of pieces of wood in the vice but can't get enough grip. I want to strip an early TY mono shock (the one without the remote reservoir) so I can give it a good clean etc. Cheers Tim

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

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 ,