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Twinshock

  1. Started by jamieson,

    Hi there! Can anyone please tell me what engine oil should be used in a KT250? I don't have a handbook/manual so not sure what type/grade oil is recommended. Many thanks Simon

  2. Started by keychange,

    I have had chronic tuning problems with my 247T and spent hours on forums and decades (it feels like pulling carbie on and off, changing jets, needles ..... I recently had to replace the woodruff key got it started but it was dying for no reason at low revs and then hard to start. So I decided to pull the carb off for a routine clean and while I was at it I lowered the needle just to see what affect it would have. To my delight the needle adjustment appeared to improve my top end performance - but the cleaned carbie did not fix the dying. The bike is going great - probably best I have ever had it but for example when riding down a cow track leading to a creek cros…

    • 16 replies
    • 28.9k views
  3. Started by jimbo349,

    Ok I have started to strip my mh349 down and assess whats required, I have owned this bike from new and used it for trials and for general nobbing about the countryside. I has seen little use in the last 15 years apart from a handfull of trials about 8 years ago. Its been buried in the shed since and has deteriated shamefully in that time. It still has the origional cables, front tyre, paint, chain and front sprocket the rear being changed from 33 to 38 tooth when only a few weeks old. So it needs; The frame and exhaust painting The engine rattles on overrun and the piston is quite loose in the bore so I guess a rebore will be required soon although the compression is…

    • 17 replies
    • 11.3k views
  4. hi guys this s my first restore of a trials bike , i must have watched to much kick start as i kid , i have done a number of cars and bike over the years , now for the bike i dont know what year it is or even what cc it is heres a video and some pics and the frame and engine number. engine number is 51m20738 and the frame number is 51m18497

    • 4 replies
    • 4.2k views
  5. Started by keychange,

    Hi - I got hold of a plastic rejuvenator kit for only $30 AUD and had a crack at the rear mud guard of my TLR200 - the results to me, are very impressive - I just hope it is as robust as they claim. So I started on the blue side panels - and on one of these the old TLR and another decal had fallen off but the plastic is still darker where they were and no amount of sanding seems to even it off. does anyone have any ideas on how to deal with this and/or can anyone tell me where I can get new TLR side panel decals from

    • 3 replies
    • 3.2k views
  6. Started by keychange,

    I inherited an 1982 TLR200 which was in pretty rough condition and so I went to work on removing the surface corrosion and I purchased VHT ( very high temperature) brand aerosol paint one for the barrel , another for casings and one for the engine pipe. Each paint is specific for their purpose. Now I could never claim to be a perfectionist - but I did my preparation thoroughly bare metal, clean and dry. I dried the paint in our oven (don't tell my wife) about 30 minutes at 120 degrees C. The barrel paint has been fine. The first time I tried to start the engine the carbie flooded spilling fuel onto the casings and the paint just dissolved leaving a hell of a mess. …

  7. Started by 02-apr,

    I see the new ACU rules for class 8 and 11 require that the twinshock suspension be "as fitted at time of manufacture". No more canting forward of suspension units then?

  8. Started by jamieson,

    Hi there! Does anyone know if Montesa Cota 247 & 348 fork springs are interchangeable, i.e. the same part No.? Cheers

    • 0 replies
    • 1.6k views
  9. Started by keychange,

    Hi - I have the Amal blues, just can't get good all round performance after spending dough on new jets, needles etc - I have been fooling around with a 2nd hand Mikuni VM26 from a DT175. It is in good clean condition and I have made sure all the jets are clean and operating. I have rigged up a suitable adapter to connect to the original air box. When I kick her over it fires then dies - after a few kicks I remove the plug and it's always wet. I did get her running roughly only at high revs and loads of smoke ( engine must have been loaded up) so I removed plug and left it overnight to dry out ( fuel off). Next day I removed the air filter - double checked seat need…

    • 22 replies
    • 7.6k views
  10. Started by keychange,

    I am sooooo tempted - the 125 looks perfect for my wife and the 200 ..... um ...well... I've already got one but two would be ok .... bugger eBay you mess with my mind http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=290522947209&ssPageName=STRK:MEWAX:IT

    • 6 replies
    • 3.5k views
  11. Started by andy.t,

    Could anyone give me some guidance, I am about to re ring my two stroke engine,it has an iron bore and rings, most people say the bore should be de glazed but i found this article which suggests that its the worst thing you can do CLICK HERE

  12. Started by keychange,

    Hi - I need to upgrade my TLR200 shocks and there is little price difference between NJB Expert, Trikshoxs or Betors. I have no experience with any of them and I am a non competitive rider looking at mixed trial/trail use. Although I can envisage that I might try competition at clubman level at some stage. I seek opinions based on your experience with the various brands.

    • 11 replies
    • 12.4k views
  13. Started by jc2,

    I recently scored a 75 247 Cota. Any tips for set-up & improvements?

    • 8 replies
    • 2.7k views
  14. Started by dgraf,

    sooooooo is there any way to get the frame specs to build a gollner framed kt250(aka The "peril")? dgraf

    • 9 replies
    • 5.3k views
  15. Started by keychange,

    I never fail to be amazed at old well and often used bikes with hubs polished better than new. What is the trick, no matter what I try my hubs end up looking blotchy at best - there must be trick getting whatever you use into the grooves and between the spokes

    • 2 replies
    • 1.8k views
  16. Started by charliechitlins,

    This is a big bummer, I think. Broken kick shaft. Between the 2 splines where the kicker arm goes on, there is a hole through the shaft making it very weak. Is this factory, or a cob job by a previous hammer-and-tongs man to secure a stripped shifter? Either way, the end of the shaft snapped off. Does this mean split the cases to install a new shaft? Is a new shaft even available? I wonder how the new girlfriend feels about engines on the kitchen table....

  17. Started by jc2,

    Does anybody have the specs for the standard Mini Majesty? eg Wheelbase, Ground clearence, seat height etc

    • 0 replies
    • 1.4k views
  18. Started by midlife,

    Hello, simple where can i get a pair of white mudgaurds for my red/black beamish with a long rear one to aviod a join.

  19. Started by jc2,

    Can anyone tell me the theory/reasons why longer swingarms are said to give more grip?

    • 17 replies
    • 8.3k views
  20. Started by john b,

    I have a Montesa 172 with Gearbox selection problems. Will go into first, but will not change up ? I've done as much as I can think of to repair (and I'm fairly mechanically minded) to no avail. The bike is in really good condition and a shame just to leave standing. A couple of options I can think of....... 1 - Does anyone know of a business or individual (preferable in the North East of England so I could take the whole bike along) who could repair ?? 2 - Engine swap ? Thought of TY175, or even TL125 (CG 125 etc) - Any opinions (or even any suitable engines anyone has lying about they may want to sell !!) ?? cheers and thanks in advance for any advice cheers John

    • 6 replies
    • 2.5k views

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