Bicycle Engine Head Torque

Set the torque then go through a couple of heat cool cycles then check the torque again.

Bicycle engine head torque. The torque specs for the 8 mm head bolts is 175 to 180 inch pounds and the 10 mm bolts should be torqued to 210 inch pounds reply. 66 80cc head studs. 10 12 foot pounds 120 144 inch pounds. Joined aug 2 2007 messages 2 147.

Common 2 stroke motorized bicycle kits use the following bolt sizes with the recommended torque as follows. This gives you a clear picture and easy way to maintain your bicycle most people have problems with compression loss or exhaust leaks or oil leaks especially. Do it right use this torque guide. Just got back from harbor freight got a new torque wrench and i m dying to try it out.

6 8 foot pounds 72 96 inch pounds. Don t try to get a turn on the wrench but see if the fasteners are still at your original torque setting. May 18 2008 3 hi je. If loose go no tighter than the 120 to 140 inch pounds recommended.

10 12 foot pounds 120 144 inch pounds. I have a 49cc with m6 cap screws i don t use studs i can use either inch pounds or newton meters. If they are leave them alone. Quenton guenther well known member.

Does anyone know or have an expert guess at the torque number for the head bolts. Muffler intake manifold front and rear motor mount bolts. It seems somewhere i saw a.