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koby

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  1. Hello. I tryed last weekend 2 beta evo 2013 ( 250 and 300ccm ) and both have the same problem ;-) Fan run always without any breaks ;-) It was about 20 degrees of Celsius... There is not problem, there is normal!!
  2. hello, i have problem with noise silencer on my Beta evo 300 2012. Motorbike has about 40 hours... I try change the silencer packing 007370550000 and I hope that will be better. But i have another question.. Is some absorbent cotton wool in the front pipe?? I know, that the first half of this pipe is clear only pipe, but second section is absolutly atypical and here I think thats cotton wool too ( but i hope thats not true and problem can be only in silencer... Thank you for answers!
  3. I have reverse problem.. http://www.trialscen...a-evo-300-2012/ My fan run always after 4 minutes... Has Evo 2012 thermostat? Where? I think no, evo has only termo switch on radiator and water pump.. Yesterday I tryed change coolant and without difference :-( Water pump is ok...
  4. Water pump is ok. Thermostat isnt on Beta evo. I put new coolant - no change, its the same problem. Is typical procedure to bleed the coolant system? Last chance is bad thermal switch on down of radiator...
  5. Hi, Yes, I have bike from new and it has enought coolant... I live in Czech republic, there is about 20 degrees Celsius now. This motorbike has a thermostat for small and big circle of coolant? I think the water pump is only mechanical thing and I hope there is can not be problem. My friend thinks that problem can be with sensor on radiator?
  6. Hello, I think I have problem with fan on my Evo 2012 300ccm. After heating motorcycle ( thats takes about 4 minutes from first start ) fan starts, but run all the time when bike run... There are no breaks... I think thats not normal, because my old bikes Ossa and Gas Gas have breaks between fan perion always, for example 1 minute without fan and 20 seconds run fan. Do you know, whats part will be broken? Thank you very much for your answers and Im sorry for my english.
  7. Yeah, thank you. Manual says 10W-30 for all Evo´s, but somewhere I think on beta websites I saw 250 10W-30 and 300 10W-40... I will use Motul transoil 10W-30.
  8. Hello, which oil do you use in transmission in EVO 300 2012? 10W-30 or 10W-40? And do you think, that premix ratio 1:75 is ok? Manual says 1,5%, thats 1:66, but I think, thats too much and exhaust will dead too early. Maybe for expert riders who ride often on full throttle. Thank you very much.
  9. borus: Ok, but I have map 11, because I have old CDI and map 11 is supposedly the last map for my version CDI . At least my dealer say it... :-/ I must change ECU for be able to record the last software... no?
  10. Ossas recommendation is 140/1 ;-) I think my bike is ok, because I know three Ossa bikes and all have problem with totaly black piston and short life time of spark plugs... I think there is behavior. :-( But its off topic.
  11. Ok, I will use 140/1... True is that Ossa with petrol mix 100/1 has problem with choke after a while on little gas... Then I pull full throttle until the engine running smoothly... In fact, life time of spark plug NGK br5es was about 40 hours. Im curious, it will be better with petrol mix 140/1...
  12. 140/1 is recommened for Ossa 2013, isnt it?
  13. gasgas249uk: Thank you ;-) I will try next weekend ;-) Yes, it is definitely cheaper :-) This week I buy a new silencer for competitions and refilled silencer I will use on training, I hope :-) I have 120 hours ( hobby style, without full trottle etc- I am beginner, I have ridden for 10 months ) and original piston, do you think is possible to use petrol mix 110/1 for longer life time of new silencer ? Now its 100/1, Ipone samurai racing 100 synt. - strawberry. Thanks a lot!
  14. Good morning, I share photos And here you can see poblem with silencer. Answer is cut out complete to corners, but it will be still difficult to clean a pipe from oil with wirebrush, but it is last hope... And then you must go to plumper to make cover plate...
  15. Hi, today I tryed repacking, but the ossa silencer is absolutely unfriendly to repacking with new material. :-(( First one I cleaned the access pipe - after 120 Hours was totally full. Now there looks like as new part, shining without any carbon. But second action - repacking silencer is unsuccessful for this time... 1) original material was in very good condition, almost without oil, carbon etc... And material is from factory very very tight! 2) Problem is in holes on pipe in silencer... There are completely clogged, sticky of oil, carbon... 3) I cut silencer on upper and right side. Still I think this is best place. But pipe is somewhere only 2mm!!!! from end of construction silencer! Pipe almost nowhere isnt in the middle of silencer... 4) There are 3 sectors... First - pipe with holes, material is scourer or aluminium cotton - probably due to higt temperatuer of gas... Second - pipe WITHOUT HOLES with classical trial material and third - pipe with holes and material... There is very dificulty put out old material and then clean the pipe, because there isnt place for manipulation.. Pipe look like roller coaster... :-/ 5) Gas gas, sherco , Beta are definitely easier to refill than Ossa. 6) It would be best way to clean holes in pipe without cut out, but Its not possilble... :-/ Some photos will be on forum tomorow...
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