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  1. congrats to Emma Bristow WON the 2011 FIM Women's Trial World Championship 2nd ! with her OSSA ! amazing bike ! cheers mate

    • 0 replies
    • 1.5k views
  2. Started by Flash1,

    Ossa tr280i

    • 0 replies
    • 1.1k views
  3. Started by ronwright,

    I am in the UK and have just acquired an Ossa SDR from the US. It is 95% complete but has no lights and no wiring harness. Can anyone help me with a wiring diagram - the one that is freely available on the net is nothing like my enduro bike. Did the SDR have a battery. There are 5 wires coming out of the magneto - 2 yellow ones, a red one , a blue one and a black one. They all go to a junction box. The blue and the black ones then go to the motoplat coil. Within the headstock gusset is a motoplat regulator. It is not connected to anything. It has 5 terminals; one is marked [in Spanish] gree; 2 close together are marked red and a further 2 close together are marked yello…

    • 0 replies
    • 2.2k views
  4. Started by deputy dawg,

    Sorry for another daft question,but I've nearly finished the rebuild i wish i hadn't started. have just received a new countershaft sprocket which i ordered specifically for it, it has a shoulder on it.( talon TG375 ) The one i have just taken off hasn't so theres not a lot of threads left for the nut soo frustating, can anyone confirm the talon sprocket is correct, and do i need to get another sprocket spacer.

    • 0 replies
    • 1.3k views
  5. Started by ColinPybus,

    Just made this today out of a couple of bits of ally bar and an old bike stand I had around for when I finally get round to rebuilding engine.

    • 0 replies
    • 1.2k views
  6. Started by lotus54,

    Anyone know what TPS the OSSA uses? It is only sold with throttle body- might be nice to have another for spare and testing. Mark

    • 0 replies
    • 1.5k views
  7. Started by papapitufo,

    Hi. Need this version of software: I have the last version with 6 buttons, but could not download maps to the bike. Cheers.

  8. Started by lavjot,

    Hi, could somebody please tell me the size and pitch of the rear spindle nut on a gripper.

    • 0 replies
    • 1k views
  9. Albert Juvanteny gives an interesting and very honest first hand insight into the Ossa company. He later rode Montesa , Mecatecno and Portus . After riding , he was minder for Gallach and developed the Alfer and JP motorcycles + more. - Visit his home - his photos, his memories and work now - Interview link below on my hobby web www.retrotrials.com/1-exclusive-intervie...lbert-juvanteny.html Photo Iain Lawrie

    • 0 replies
    • 2.3k views
  10. Started by mudyman,

    Hi all, I need advice about getting shims for the crankshaft on my Gripper 350. The bike had a nasty banging sound when I got it. After opening we found the crankshaft had to much movement (left to right) and the weight has been rubbing on the clutch side cover. We suspected worn mains and I have oppend up to change them. Now having dismateld I have found that one of the shims on the crank is so badly worn that its breaking up. On one side there are 2 shims and on the other there´s just one but I think this may be orig. as they did them individualy as far as I know. Anyone got an idea where I can get replacement shims from ?

    • 0 replies
    • 1.3k views
  11. 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
  12. Started by chaindrive,

    I have just got a 350 TR80 and its missing the front end of the brake linkage, the bit that goes behind the frame and ( I think) under the swing arm, does any one have a picture of one so I cane make one ?

  13. Started by subheatadey,

    Hi Guys, just wondering if anyone can help me out, I am after a sprocket side cover 1971ish Ossa Pioneer sprocket side cover. If anyone has one or knows of someone I can contact that would be a great help.

    • 0 replies
    • 1.1k views
  14. Started by pmk,

    I need to replace the O rings on the fork caps of my 73 MAR with Betor forks. The measurements seem to be 3mm x 31mm. Here in the USA metric Orings are not locally common. Also, before I order them, I was hoping someone knew the proper size. Thanks

    • 0 replies
    • 1.2k views
  15. Started by ColinPybus,

    With reference to an earlier post on here about a broken threaded boss on the right side engine casing on a 250 Mar, I have the same problem on mine. Upon further inspection I noticed the hole for the thread was a further 10mm deeper from where it was broken off. Using an M6 machine tap I managed to tap the hole to the bottom giving more than enough length and strength for an M6 countersink bolt. The only problem I'll have now is sourcing a bolt long enough! Site won't let me send pic as over 2mb big. Can this be changed or is there something I need to do? I've sent pics before no bother.

  16. Started by Ossa6Day,

    I’m looking for a headlight reflector for my 78 VI Day. I’m not sure but I believe it was only used on the 78 black tank VI Day. I haven’t been able to find one anywhere. I’m hoping someone on this site knows of a source. Thanks

    • 0 replies
    • 1k views
  17. Started by ossabc63,

    Hi think i found a clear protector for my carbon termignoni the sides were wearing and turning grey. I bought this stuff about fifteen years ago and still had it laying around so i tryed a small spot first a light scuff with 300 grit. Then brushed it on let it dry over night wow you couldn't tell it was worn. The heat dosnt bother it leaves a hard finish. If and when it wears add another coat. ?

    • 0 replies
    • 1.5k views
  18. Started by jacksmith,

    I have a 2014 tri 300 and the braktec front calliper has started to seep oil between the two halfs ,I take it the rubber seal has probably split. Problem is when I've looked online for the repair kit but they only show for the gas gas racing models and never ossa is it still the same thing? And there tends to be two types one for around £20 and one newer version for about £40 anyone know which would be the one I need?

    • 0 replies
    • 1.1k views
  19. Started by motochef,

    My 2014 Factory R Thank you Ossa USA Floyd

    • 0 replies
    • 2.1k views
  20. Started by Blackmer,

    Hi, I've just registered on the site. I have been replacing the fuel pump on my TR 280i and found a few helpful posts here. I was wondering if anyone knows where i can find an Explorer conversion kit. By the way I found the fuel pumps from the KTM 690 Duke's look identical and are relatively cheaper..

    • 0 replies
    • 1.1k views

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