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Discussion Starter #1
im rebuilding my 1980 oto ski ultra-sonic and i dont know the torque specs for the cylinders and for the head? and where can i find a rotax repair manuel
 

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Cylinder bolts are 15 pound feet and the cylinder head studs are 16 pound feet
 

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Discussion Starter #5
yep thanks alot, and by any chance do you know how to get the right timeing it becuase the gear that drives the water pump and the rotary valve was obliterated so i bought a new gear but i cant figure out how to get the rigth timeing
 
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