fsb Posted July 1, 2009 Report Share Posted July 1, 2009 Hi. Just wondering which oil I have to use for the gearbox from my 250cm Quote Link to comment Share on other sites More sharing options...
big john Posted July 1, 2009 Report Share Posted July 1, 2009 (edited) The oil specified should be EP (Extreme Pressure) 90 in the UK. Also known as Hypoy oil. Castrol produce this oil for car gearboxes, smells horrible, but that is what I have used in all my Bultacos over the years, never had a failure yet! Have a look at their website for applications including the classic range, you will find EP90 in there under Hypoy Gear oil. www.castrol.com Big John Edited July 1, 2009 by Big John Quote Link to comment Share on other sites More sharing options...
pedronicman Posted July 1, 2009 Report Share Posted July 1, 2009 Officially Bultaco recomend 500cc of EP90 but if you can't get hold of any then use a good motorcycle 10W40 gearbox oil NOT car 10W40 engine oil. This will work ok as it is not in contact with the clutch. As for the clutch ONLY use 'ATF' or 'AUTOMATIC TRANSMISSION FLUID' the std red stuff you can get from most motor factors/shops Use 250cc for a refil or 300cc from dry. DO NOT use any other oil in a sherpa clutch as it can cause clutch slip and other problems. Quote Link to comment Share on other sites More sharing options...
dave dix Posted July 2, 2009 Report Share Posted July 2, 2009 I use ep90 for gearbox and tqf for clutch , the only bike i know that uses 140 is moto-guzzie rear diff Dave Quote Link to comment Share on other sites More sharing options...
fsb Posted July 2, 2009 Author Report Share Posted July 2, 2009 Thank you guys. bye, Felix Quote Link to comment Share on other sites More sharing options...
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