turbobettsy Posted August 17, 2012 Share Posted August 17, 2012 Can anyone tell me what the valve clearances are meant to be? It sounds slightly tappy in the head wondering whether this is normal as i've not had any experience with old yamaha four strokes. Cheers, Chris. Link to comment Share on other sites More sharing options...
Prichard XT Posted August 17, 2012 Share Posted August 17, 2012 Best bet is to hunt down a haynes manual for it saves alot of time and money Link to comment Share on other sites More sharing options...
YPVS TONE Posted August 17, 2012 Share Posted August 17, 2012 In the Yamaha data book I have it say's XT125 (12V) 1982 - 1983 Valve clearance (engine cold) Inlet 0.05 - 0.09mm or 2 to 4 thou Exhaust 0.11 - 0.15mm or 4 to 6 thou Tony Link to comment Share on other sites More sharing options...
turbobettsy Posted August 17, 2012 Author Share Posted August 17, 2012 Thank you Tony, great help! Link to comment Share on other sites More sharing options...
3w4m Posted October 13, 2012 Share Posted October 13, 2012 Hi Sir Tony, You have mentioned that you have a Yamaha data book. If you don't mind my asking sir, would you pls tell me where did you bought that data book? I have a yamaha stx 125 and I just want to know how to adjust my valve clearance and carbs air/fuel mixture. Thanks in advance!!! Regards, Maxwell Link to comment Share on other sites More sharing options...
YPVS TONE Posted October 13, 2012 Share Posted October 13, 2012 Hi Maxwell The two data books I have I got off ebay a few years and only cover models from 1979 -1983 and 1984-2001 and were originally issued to Yamaha dealers as quick referance books. They are only data books with service data settings and don't actually tell you how to do a specific job. Do you have a Yamaha dealer near you who will give you the settings but obviously he will be doing himself out of a job and might be a bit reluctant. Haynes don't seem to list that specific model. The options would be to see your dealer and see if a Genuine Yamaha workshop manual is available but these are usually quite expensive or to see how much he would charge to do the job. Tony Link to comment Share on other sites More sharing options...
Recommended Posts