I want to know what ft. lbs. torque needs to be set on the head of a 83-85 200x motor.[img]i/expressions/face-icon-small-confused.gif[/img]

 

Well first of all the four 8mm head bolts are 20-22 ft-lbs and the four 6mm bolts and phillips screw head bolt are 6-9 ft-lbs. These should tightened in 2-3 steps and in sequence.



Front of Engine

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***7******9****
***************
****4*****2****
*5*************
****1*****3****
***************
***8******6****

This is directly from my Honda Service Manual, hope it helps.

Jeff
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I have 13-14 ft.-Lbs on the 8mm bolts.......you sure that you did not mean 20Nm???????????????? But I have the same on all the rest.

 

well what about the 4 12mm bolts that are in the center on the valve cover? what ft. lbs do those have to be?

 

12mm head is the 8mm bolts....8mm thread diam.

 

oops thanks

 

Wow I found something interesting!


My Honda Manual says 20-22 ft-lbs for the 8mm diameter head bolts,
and my Clymer Manual says 13-14 ft-lbs for the same bolts.

Both manual state the same 6-9 ft-lbs for the 6mm bolts.

HHMMMMM which is correct? I used the Honda Manual specs for when I rebuilt my X with no problems but I remember it felt kinda funny on the last sequence.

Maybe just to be safe I would contact your local dealer, since when I rebuilt my X I replaced the head bolts and got the last of them from Western Hills Honda who carries alot of older parts. And if they don't have them your almost SOL on finding any.

Jeff

 

good point.......set mine to the lower #'s and I blew out my first head gasket after about 2 months.......used the same specs on the 2nd one and I am fine so far.........MY86ATC350X..if you call a dealer let us know what they say so we can change it in our books if need be.

 

yea i guess ill go to Cycle Stop Honda Service to make sure.. dont want to blow a head gasket too. thanks for the updates guys