Head bolt torque

Walter F. · #1 (**permalink**) 10-15-2008, 05:18 PM

Just got back from Harbor Freight, got a new Torque Wrench and I'm dying to try it out. Does anyone KNOW or have an expert guess at the torque number for the head bolts. I have a 49cc with M6 cap screws, I don't use studs, I can use either inch pounds or newton meters. It seems somewhere I saw a number like 12 newton meters, does this sound about right? Happy Trails Walter F.

misteright1_99 · #2 (**permalink**) 10-15-2008, 06:14 PM

I believe for 6mm the figure is 8 ft lbs/ 96 inch lbs......That is what I have my head bolts (studs) torqued to. I believe the 12 ft lb rating is for 8mm studs.....

1 ft lb = 12 in lbs

**Bikeguy Joe** · #3 (**permalink**) 10-15-2008, 07:14 PM

I second that.

**Bikeguy Joe** · #4 (**permalink**) 11-10-2008, 12:51 PM

Here's a photo of my torque wrench.

Low torque setting (photo 1.)
High torque setting (photo 2.)