jimcomins Posted November 11, 2017 Report Share Posted November 11, 2017 I'm sure this has been asked before but I am new to this forum and Trials biking. Does anyone know what oils are required for a 1980s Cota 200 and what fuel mix? I'm using 50:1 at the moment. Cheers Jim Quote Link to comment Share on other sites More sharing options...
29markt Posted November 11, 2017 Report Share Posted November 11, 2017 29 minutes ago, jimcomins said: I'm sure this has been asked before but I am new to this forum and Trials biking. Does anyone know what oils are required for a 1980s Cota 200 and what fuel mix? I'm using 50:1 at the moment. Cheers Jim Hi Jim, As per the manual 25:1 or 4% is what is described, email me at twinshocktrials@gmail.com and I will forward the manual to you. Regards, Mark Quote Link to comment Share on other sites More sharing options...
jimcomins Posted November 11, 2017 Author Report Share Posted November 11, 2017 Many thanks Mark. Quote Link to comment Share on other sites More sharing options...
nigel dabster Posted November 12, 2017 Report Share Posted November 12, 2017 25 to 1? Maybe in 1982. Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted November 12, 2017 Report Share Posted November 12, 2017 20 minutes ago, nigel dabster said: 25 to 1? Maybe in 1982. Correct. 50:1 is fine for the old Spanish bikes these days. Quote Link to comment Share on other sites More sharing options...
alberto Posted November 12, 2017 Report Share Posted November 12, 2017 1 hour ago, cleanorbust said: Correct. 50:1 is fine for the old Spanish bikes these days. we raced with the Cota 123 for two year in the 1982-1983 (italian national junior championship) at 60:1 with sinthetic oil (Bel Ray MC1) and after 6 month of race, our trial mechanic check the engine and discover that there wasn't any particular problem (piston tollerance and connecting rod) but a lot of deposit on piston and rings, so he told us to reduce the oil into the premix at 80:1, then we raced all the rest of the time at 80:1 with racing sinthetic oil. sorry for my orrible english 1 Quote Link to comment Share on other sites More sharing options...
jimcomins Posted November 12, 2017 Author Report Share Posted November 12, 2017 OK I'll bear that in mind, do you remember what oil you used in the gearbox and clutch? Thanks. Quote Link to comment Share on other sites More sharing options...
alberto Posted November 12, 2017 Report Share Posted November 12, 2017 51 minutes ago, jimcomins said: OK I'll bear that in mind, do you remember what oil you used in the gearbox and clutch? Thanks. sorry, i do not remember Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted November 12, 2017 Report Share Posted November 12, 2017 6 hours ago, jimcomins said: OK I'll bear that in mind, do you remember what oil you used in the gearbox and clutch? Thanks. Gearbox: 75/90w Clutch: automatic transmission fluid Quote Link to comment Share on other sites More sharing options...
jimcomins Posted November 12, 2017 Author Report Share Posted November 12, 2017 Cheers for that, I must be thick but where do you drain and top up the Gearbox and clutch levels? There's only one plastic filling plug in the clutch cover side and one drain plug below this side of the engine. Quote Link to comment Share on other sites More sharing options...
mrturtle Posted November 12, 2017 Report Share Posted November 12, 2017 2 hours ago, jimcomins said: Cheers for that, I must be thick but where do you drain and top up the Gearbox and clutch levels? There's only one plastic filling plug in the clutch cover side and one drain plug below this side of the engine. did you not get the manual ? ? Quote Link to comment Share on other sites More sharing options...
alberto Posted November 12, 2017 Report Share Posted November 12, 2017 3 hours ago, jimcomins said: Cheers for that, I must be thick but where do you drain and top up the Gearbox and clutch levels? There's only one plastic filling plug in the clutch cover side and one drain plug below this side of the engine. i think the cota 123/200 has only 1 gear box oil, so go to 10w30 or 10w40 or atf cota 348/349 has two different type of oil, separate: 80/90 in gearbox and 10/30 in clutch Quote Link to comment Share on other sites More sharing options...
jimcomins Posted November 12, 2017 Author Report Share Posted November 12, 2017 Cheers, for that I was going out of my mind looking for a secret plug. Many thanks again for all of your help. Quote Link to comment Share on other sites More sharing options...
nigel dabster Posted November 13, 2017 Report Share Posted November 13, 2017 my 242 had 900cc in it dont know if thats right or wrong, but refilled with the same Quote Link to comment Share on other sites More sharing options...
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