fantic 300 pro Posted January 30, 2010 Report Share Posted January 30, 2010 Can anybody please tell me what weight oil I should use for my 1977 TY250 forks? I weigh about 170 pounds. I also wondered how much oil needs to go in each fork leg? Thank for any help offered. Paul Quote Link to comment Share on other sites More sharing options...
tony283 Posted January 30, 2010 Report Share Posted January 30, 2010 Paul, On all my Yams I use 150cc per leg of a good SAE 10 fork oil. Tony Quote Link to comment Share on other sites More sharing options...
fantic 300 pro Posted January 31, 2010 Author Report Share Posted January 31, 2010 Tony, thanks again for help and advice. Cheers Paul Quote Link to comment Share on other sites More sharing options...
mattylad Posted January 31, 2010 Report Share Posted January 31, 2010 I would use a heavier grade oil such as 20W40 which was recommended as standard. I think it is 164cc The Yam has a problem with topping out if much lighter oil is used. Quote Link to comment Share on other sites More sharing options...
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