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About naichuff

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    Advanced Member

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  • Bike
    175 Bultaco 200Beta

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  • Location
    Mid Lothian

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  1. I have used a 620 / 300 and the main is only 110 It has ran for 3 years but has suddenly began running rich Looking in to the fault
  2. naichuff

    Greeves win

    Well that is very good going to do that
  3. naichuff

    Greeves win

    Greeves did build a modern trials bike I saw it a Telford some years back Three entered the SSDT where only the one finished Never heard much more after that
  4. What type off gaskets do you use I use an o rings top and bottom A black square section type on the bottom and a red round section at the top If the tube is seated properly and no damage it should seal mine do alright
  5. You will find there is two types of gearbox/cam cases as the o/d of the cam bush are smaller on the distributor engine I managed to get the correct one for one engine The other engine I made a sleeve to fit over the bush and into the case I made little top hat to fit over the end of the bush and bonded them on with epoxy glue Tried the R cam made it harder to start and lost some bottom end power Reverted to standard cam The engines can vary in power a lot one engine runs sweet the other not so yet both built to the same spec
  6. The 250 gaskets and seals are the same not sure about cylinder base as my motor has not been apart since new Only done seals and primary chains
  7. Check out a vehicle wiring and component supplier for the terminals and resolder or crimp the wires in place
  8. I use a Miller oil tank on both Cubs I did not use the plastic pipe to feed the engine but rubber oil hose to feed it as I cut the plastic pipe the wrong length on the first engine But when doing the second one used the plastic hose Like you it leaked at the gearbox where it fits on to the copper pipes So the was fitted with rubber pipe also The plastic pipe is a loose fit on the mettle pipe even with hose clip tight
  9. Never put any in the ones I have built either and there is none shown in the parts book for the bush type or roller timing side
  10. They are The rider of my Cub says the action is better than his GasGAS and it showed up how bad the rear was
  11. Duncan MacDonald supplies REH fork not MP These transform the front end I have used MP 32 mm and Marzocci's But I do not ride the bike I leave the to someone that uses it and tweak the bike to suit him
  12. The main shaft and lay shaft are assemblies So these parts are not shown in the parts book They fit under the small gear on the end of the shaft holding the larger gear ( second on the lay shaft Third in the Main shaft ) One of my engines has run without these for years and is used every week
  13. You could contact the VMCC and they have specialists on most makes
  14. Got it I seen that one It must be a new product
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