markgm1957

Thanks I will try 10W then...

@ canadler , I got a repair kit for the DuoShock on my 312 from Andre Horvath in Austria. the shock was also fitted to older mono KTMs. http://www.enduroklassiker.at/en/shocks-and-rear-swing-arm/4457-marzocchi-monoshock-duo-reparatursatz.html Just disassembled all and ready to reasemble. Which damping oil is recomended? 2,5 / 5 / 7,5/ 10W? or doesn't it matter? Also does someone have a manual for the bike and or the shock? That would help me lots. thanks @ pschrauber, Grüsse aus dem Chiemgau.......