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nickyburnell

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Posts posted by nickyburnell
 
 

  1. Leaky gear shaft MAR

    in OSSA

    Posted

    4 hours ago, pmk said:

    You might consider carefully polishing the o ring area of the shaft using Scotchbrite or super fine sandpaper.  

    Then, use tne original o ring to get a size for it, then try a firmer rubber compound such as a 90 duro type.

    Then again, if the case has corrosion pits in the o ring groove, it may be best to modify the case for a seal.

    Thanks

  3. MAR Shimming

    in OSSA

    Posted

    Had engine completely rebuilt by Steve a couple of years ago, all good. I am now getting quite a few neutrals.

    Is the re-shim as evil a job as it looks, and if so who does a good job before I try to collar Steve again?

    Thanks

  7. Mar Clutch

    in OSSA

    Posted

    Hi, got bad snatch when warm, Oil makes no difference.

    No luck trying to contact Steve Sell by any method (no I don't withhold my number) so:

     

    Anybody know if the In Motion kits are OK? Or any other pointers?

     

     Many thanks

     

    Nick

  9. Rl325

    in Suzuki/Beamish

    Posted · Edited by nickyburnell

    My 250 with a 2mm overbore is on 125 main and 37.5 pilot on a VM26 and its perfect from walking pace. 27.5 was very baaaaaa on the VM26

     

    A quote from Jim at BOC for the VM26  . Mines on 37.5, maybe due to overbore size

     

    Needle 5CN6 (from your old carb - unobtainable now)
    Needle tube O-4
    Main Jet #125
    Pilot Jet #35
    Slide cutaway 2.0 or 2.5

  19. Ossa Mar Rattle

    in OSSA

    Posted

    Piston here now, from InMotion, it is a Spanish one from Ital, they come in 72, 72.25, 72.5 (mine), 72,75 and 73. Skirt is full length but IM said they could have had it sorted.

    I have been informed by a few that full length skirt made absolutely no difference to bikes performance. It would of course be a better balance like that. My re-borer is very experienced, shall ask him his opinion.

  22. Ossa Mar Rattle

    in OSSA

    Posted

    Many thanks to all. I'm now sure it's piston slap at bottom of bore.

    No head contact.

     

    In Motion have pistons 72.00, 72.25, 72.50, 72.75, 73.00.

     

     I'm on 72 std so hopefully 72.25 will cure it.

     Strip down again tomorrow to check for bottom slap, then off to the re-borers

  24. Ossa Mar Rattle

    in OSSA

    Posted

    Did you put the alloy spacer between the head and cylinder on assembly,

    And if so what thickness.

    Just a thought

     

    PS. I did think of this, so ran two with super low compression as a 10 second test, my thought was that the ring wasn't being compressed. Same noise.

     

  25. Ossa Mar Rattle

    in OSSA

    Posted · Edited by nickyburnell

    As in the head gasket so to speak?  Yes a new one supplied by Steve. About 3mm I suppose. It did make this noise before it went to Steve BTW, Big end was floppy which is what I presumed it was, Noise is top end ish it seems.

  
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