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  1. Started by jsp,

    Went out riding on Saturday and my 2012 ossa wouldn't start at all, checked the plug and it was bone dry, checked a few connections around the plug and tried again and it fired into life. could this be the start of a fuel pump problem I ve heard of people having problems but not sure of the symptoms jsp

    • 1 reply
    • 1.7k views
  2. Started by theonemanyuri,

    Hi guys, I'm completely new to trials, well motorbikes full stop. There's been what I think is an Ossa MAR 250 sat in the shed for the best part of 20 years now, purchased by my old man for a tenner. As I've got a bit of time on my hands I've started taking it apart with the hope of getting it back to somewhere decent nick (never worked on a bike before but I'm a fairly competent mechanic and engineer). I haven't got as far as checking the frame and engine numbers yet to find out specifically what model it is, I was just wondering if the pattern on the tank is stock? Most of the early models have the green stripe of some sort but i recently saw one with a red stripe? Unf…

      • Like
    • 8 replies
    • 3.8k views
  3. Started by stou,

    There's not much of an indication in the user manual about the fork preload. Is it the 2 holed rings on the fork? In the book, they talk about a special tool. I suppose this is a tool that is made to be inserted in the holes of the top ring?

    • 0 replies
    • 1.4k views
  4. Started by jsp,

    Just noticed my footrests are getting very worn and smooth on my 2012 bike, has anyone fitted an after market pair ? Jsp

      • Like
    • 4 replies
    • 2.9k views
  5. Hi, I'm looking for superior twinshock knowledge again. The front sprocket has a step (boss) on one side and flat on the other. Which way round should it go? I've tried looking along the chain line for an obvious visual effect but its really not clear. Also does anyone have any solutions for locking a 10 tooth sprocket nut as the tab washer is too big. Thank you.

  6. Started by petrg,

    Looking to paint my Ossa 280 frame and swingarm green.. Have seen the latest 2013 model is green and it looks great. Has anyone any suggestions as to what paint to use..... 2pack, Cellulose, etcetc... Thanks

      • Like
    • 4 replies
    • 2.6k views
  7. Started by scot taco,

    Just trying to learn a little history on my bike(1970 Ossa Plonker).Did Mick ride the stock bike or close to it in his first few six days (1967,68,69) with Ossa? It was pretty cool to see pics of Dave Thorpe on one in CTM and to read that he did pretty good on it.

      • Like
    • 5 replies
    • 3.3k views
  8. Started by jsp,

    Has anyone changed there coolant in a TR280i was it much of a job to do ? mine looks white in the top of the rad so was thinking of maybe changing it

    • 7 replies
    • 3.4k views
  9. As per the title I need to get fluid into my rear brake master cylinder, but as Ossa decided to mount it vertically, it poses a problem, if you just wanted to pop the lid off and top up, just as you would with the Front Master cylinder. Do I need to Use a Syringe and fill from the bleed nipple on the caliper, or is there another way.?? Cheers

    • 3 replies
    • 1.7k views
  10. Started by ikb,

    Just wondering does the Ossa need a fast tick over like the 4rt? I quite fancy one but I like my bikes set to just tick over. Ian

  11. Started by fatbastard,

    Can anyone recommend some nice rear pads for a 2012 280i please.

    • 2 replies
    • 1.5k views
  12. Started by ric h,

    It's in the way when changing the air filter.Do i just pull out on the clip and push down? It must be really tight.I might need a new air filter soon.Are they expensive?

    • 6 replies
    • 2.6k views
  13. Hi, can anyone help me identify which rear hub I have my 350 Gripper. I thought it was original until I went to fit a new sprocket. The bolt holes don't line up on a Talon TR-222. The hub and original spocket have 6 bolt holes spaced as 3 pairs, the pcd is approx 150mm. The new Talon sprocket has the same centre hole of 130mm, the same layout of bolt holes but the pcd is approx 160mm. The only similar hub/sprocket I can find is a Montesa Cota but I dont the dimensions. If anyone has either of these lying around, and a spare five minutes to measure pcd and centre hole it would be much appreciated. Cheers, Gary

  14. Started by mudyman,

    Hi Guys I need to get the sleeve off the crank (clutch side) on my 350 Gripper. There´s a Puller "Ossa special tool" to do this, has any one seen one of these for sale or know where you can get them ? If no longer available does anyonee have experience with getting the sleeve off with other methods (theres no room to get a puller between the main bearing seal and the sleeve) ?

      • Like
    • 7 replies
    • 3.6k views
  15. Started by luckaz,

    I am looking at a new 2013 bike. Trying to decide between the OSSA , Beta, and Sherco. I'm an intermediate rider. We ride woods with steep hill climbs and steep rock sections, some longer trail rides; all in big mountains (British Columbia). Any comments on the Ossa bikes? Some people are saying the the FI isn't quite there yet, Carbs are still better. How about general quality and reliability? Any suggestions what you would buy if you could get a new 2013? Thanks from a research (and trials) addict.

  16. Started by ric h,

    Anyone have some numbers or even a dyno graph for the tr280i? Just curious.

    • 5 replies
    • 3.4k views
  17. Started by jsp,

    That new factory replica ossa looks Fantastic, wonder how many penny's It will be ? Shame the trade in values are crap Or I could have been tempted

    • 5 replies
    • 2.8k views
  18. Started by jsp,

    After replacing the rear suspension arms on my 2012 bike due to the main pin snapping, I ordered some new swinging arm bolts as the heads where a bit chewed up, I've just come to replace them and the have both shered off at the end of the threads. I've looked at the shocker and the spring is only hand tight can anymore tell me what the measurement of the spring should be with the shocker off the bike from the factory. Once I get that sorted and tightened up will i be ok to use the Alu swinging arm bolts I've just got or should I look for some steel replacements ?

    • 0 replies
    • 1.4k views
  19. Hello, try someone fill exhaust silencer with new cotton? Is it possible? New silencer costs about 400,- Euro, there is too much... Why? On Sherco costed 205,- Euro... :-/ I have about 120 Hours and silencer ist completely dead, no power in the low round, only a lot of noise... Which shop has best price on Ossa original parts? Thank you for answers :-)

      • Like
    • 29 replies
    • 8.8k views
  20. Started by jkmr1,

    Never was a fan of green!

    • 15 replies
    • 8.8k views

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