torque specs?

[BossmanEX]

Can anyone give me the torque specs for the top end on a 400ex. If it matters at all it has a JE 12:1 piston 87mm bore and a stage II hot cam. I know its going to be in inch pounds so Im going to have to get a torque wrench to do the job but I dont know the specs. Thanks

[F-16Guy]

http://www.atvriders.com/articles/torque400ex.html

[krt400ex]

i am not sure about the 400ex specifically, but ussually 19-21 ft-lbs is right at where u should be

[JOEX]

Originally posted by krt400ex
i am not sure about the 400ex specifically, but ussually 19-21 ft-lbs is right at where u should be
For what bolt:confused:

[krt400ex]

Originally posted by JOEX
For what bolt:confused:


the head bolts.

the oil tank bolt is 14 ft lbs and the crankcase bolt is 18ft lbs, but those have nothing to d with the top end.

[F-16Guy]

From my previous post:

Cylinder Head/Valve
cylinder head cover bolt -- 8 lbf-ft
rocker arm shaft -- 20 lbf-ft
intake sub-rocker arm shaft -- 20 lbf-ft
exhaust sub-rocker arm shaft -- 20 lbf-ft
cam sprocket bolt -- 14 lbf-ft
cam tensioner plug -- 2.9 lbf-ft
cylinder head nut -- 33 lbf-ft


Cylinder/Piston
cylinder bolt -- 33 lbf-ft
cylinder stud bolt -- 33 lbf-ft

[-copyguy-]

sent you a PM that might help.