steve1979

Hi, I am in the process of rebuilding a little TY for my son, I got it in a sorry state, the person I got it from told me it was an 80 so that's what Ive been going on. I've had the frame, swing arm etc shotblasted and now it's all repainted. I was cleaning the engine getting it ready for painting when I found "553" with "49cc" stamped underneath the fins on the cylinder. When I put in the frame number on the Internet it tells me she's a 1975 TY80. Is the 49cc stamp telling me it's a Ty50 or does the 49cc relate to something else. Thanks for any help.

While your into the clutch a couple of jobs that can be done to get a silky smooth clutch is to replace the seals in the top hat and when replacing the fluid use dot 5.1 as it's silicone based and is less likley to make the seals swell. But more importantly is to polish the inside of the top hat with a dremel and metal polishing compound like autosol or equivelent. I was recomended to do this a while ago and now i always get comments on how smooth and light my clutch feels. As mentioned before about watching the you tube video's thats good advice , there great! it goes into about replacing the metal clutch plates for one's of varying thickness to get the clutch to feel just how you want.

I'm going to take my aprilia 1000 out for a spin too

To get the correct chain tension, rotate the snail adjusters until the chain tensioner starts to come away from the swing arm, once you can get a finger between the two or your thumb (unless you have massive thumbs) then thats the correct tension. I think you can get anodised coloured chain tensioners so added bonus of getting some bling

The kick back i assume is maybe just how your doing it, give it a good HARD kick, as for poor starting you could try if you dont have one allready an irridium plug, also try setting the floats in the carb a little higher. There is a set height for them which i cant remember what it is but 17mm seems to ring a bell( someone may correct me o that) if it is try 19mm which will allow more fuel in the bowl. Apart from that just make sure everything is as clean as it can be Just noticed yours is a raga so maybe the carb is not a dellorto which is what i was basing the float adjustment on. hope that helps in any way

Is the throttle cable running smoothly, try disconnecting the cable at the throttle end to eliminate its not snagging any where. Other than that are the reeds okay. Apart from the cable or an air leak i cant think of any thing that would give the symptoms you are describing

Me too also + it helps save the lever in a off

Also if you want a smooth clutch feel, polish the inside of the "top hat" with a dremel and some metal polish paste then once reasembled use Dot 5.1 brake fluid instead of dot 4 and obviously new seals in the top hat as the old ones swell with time

Thats a fair comment Rich i just like to get some good qaulity silicone grease in there.

You have to be at the end of a rainbow when you buy your gas gas then you get it

You and me both, don't know how to help but if it's any consilation my bike does excatly the same and i too have just fitted a new clutch. Neutral is always a b****r to find, i think thats just one of those things although when not running you should be able to find it...well easier. Mine jumps into gear now and again while in neutral i just put it down to me not completly selecting neutral properly. There is a check you can do to see if the selector needs adjusting, look it up on youtube under gas gas repair. It's in amongst the various repair video's, it's to do with placing bike on a stand then selecting 1st then slowly let the lever back up and you should hear a click when it's found it's own resting point if you have to pull the lever further up to hear the click then you definatly need to adjust same for 2nd, but it's explained better on you tube. Mine is also a 03 250 and also get fresh oil more than it probably needs. It'll be interesting to hear what other people say about it as mine does the excact same as yours

Thanks guy's, thats a great tip. I think i'll swap mine for a number plate screw aswell. I have very thin cable tie's on the side's holding it lightly in place but i still have the metal bolt in the centre. I'll swap mine for a plastic one and pass on the tip to my friend. Thanks again

He's done a temp repair on it for the moment but yes thats a good point about the wanted section i'll post one up later. Just in from first footing Had a trawl through ebay but no joy so far but we will keep a look out

Hi guy's, While out today one of my friends had a slight off and in the process somehow managed to completly snap the end of his airbox off. He intends to plastic weld it back on for the meantime but we were wondering if anyone could point us in the right direction for a 2nd replacement. Is there anyone who perhaps breaks trials bike's. It's a gas gas 280 txt pro 2003 Any help would be greatly appreciated Thanks, Steve Happy new year too

Great news, electric problems usually end up taking up loads a time trying to track down the fault, bet it's a relief.

Electric problems are the worst i feel your pain mate, been there and had more than my fair share of those problems. Do you own a digital multimeter or could borrow one and know how to use it, if so and you don't get no joy from doing a wiring check as stated by des let us know and we can run you through a few simple things to check with it. Better still if you have a mate with the same model and same ignition (i'm assuming it's Kokusan) try swapping bits over. It should hopefully be a simple fix though seeing as it was sparking before probably just something been disconnected during your overhaull and perhaps not noticed.

http://www.trialspartsusa.com/diagrams/Shock_Absorbers_GasGas.jpg Hi Wils, i found this pic and my shock is the 2000 and newer one i'm assuming you have the first one in the pic which looks shorter than mine so i'm not sure the evo spring would fit.

Hi Wils, Sorry not sure about the 1995 250 contact but if it's a sachs shock i would guess it probably would fit but i couldn't be 100% i was lucky because my mate had swapped his spring over and i compared his original to my spring and they were identical although the beta evo shock which is the same sachs shock is just upside down so the rebound adjuster is at the top. If you could compare your 1995 to a 2003 or beta evo and see if it's still the same shock then your in luck. Hi VMeldrew, thankyou for the link iv'e not ordered new fronts yet but think i'm going to this weekend. They may be worth a call though to see what they come up with. Thanks again

Hi Spark, yes i'm 91kg and i have an uprated rear spring in the gas gas allready, i got that from Steve saunders (SXS) it's actually the upgraded spring meant for Beta evo's but they fit the gas gas too, they just fit in upside down it's the same sach shock. I tried the standard spring in mine from my mate's beta after he upgraded and the two standard springs are identical so i ordered stiffer spring and had it in the bike for months now and what a fantastic difference. Hopping the rear is so much easier and it tells you how much preload to dial in to suit your weight so far it's been one of the best £50 mods iv'e done. If the stiffer fronts are as good as the rear they will be well worth it. For anyone else who may be interested in a stiffer rear spring here's a link http://www.saundersextremesports.co.uk/product.php?id=1248718752&parent=4

I was the same as the Addict, just practise'd alot and one day it clicked. When i say practised alot i mean alot, iv'e been off the back more times than i would've preffered lol. My advice for getting the hang of the back brake is to do lot's of very small wheelie's and jab the back brake hard to bring it down quick do this over and over until your happy having one foot hanging over the brake, then just do bigger and bigger wheelie's until you can go long distance slow in 3rd and if it goes to far back you just ease the rear brake on. Simples

Hi Spark, thanks, i will probably be ordering them from Lewisport, i'm surprised there not more readily available in the UK. I was considering just getting new standard springs, seeing as mine have had 7 years worth of use but uprated one's would be better. Did you notice much difference after getting your springs in.

I cleaned the mid section on mine by filling with kerosene and setting it alight until it burned all the oil out, then i took it to work and put it in the parts washer to give it a good clean but you could do the same by after it's been alight fill with jizer or some alternative degreaser (gunk etc) and give a good scrub with that and a flexy bottle brush then finnish off by blasting it all out with a pressure washer. I did this and also Shot blasted the paint off and resprayed it with high temp paint as setting it onfie did not do the original paint any favours. Mine had course S/S mesh inside so no harm done there. Mine's an 03 by the way so i'm not sure if other years had different insides.

Hi guy's, iv'e been searching for heavier rated front springs for my 03 txt pro 250 and the only place i can find them is one's in America does anyone know where they could be bought from in the UK. Thanks Steve

While the oil is drained, take the water pump off by unscrewing the three alan screw's ( you don't need to drain the system) and check the water pump seal if there's signs of antifreeze leaking out it needs a new seal. If it does there's a vid on you tube showing how to do this. Also if it needs a seal check the condition of the turbine shaft. May not be the cause but worth a check to rule it out

I check mine when it's cold. You will need a compresion tester that either screws into the spark plug hole or the version like mine that you push down onto the plug hole (kinda difficult to do while kick starting the bike, easier with the screw in type) Method is quite simple 1) remove spark plug and place plug cap out of the way. 2) push or screw tester into plug hole 3) hold throttle wide open 4) kick start the bike with a good hard kick approx 4 times in a row quite quickly 5) remove tester and check what psi it's reading........job done If it's lower than it should be it's probably needing a top end rebuild (new rings etc or full piston kit). I would imagine your 08 beta should be fine though but apparently doing alot of wet riding ie burns can wear a piston out quicker unless the filters in tip top condition. If you are using the press on tester rather than the screw in type, having an assistant hold the bike and the throttle open is a big help. It would be interesting to see what psi your getting. If i get a chance this weekend i'm going to test my mate's 09 beta it's not had much running, he bought it new then stepped up to a 09 290 evo so the 250 doesn't get used. The lucky sod