80cc head torque. A two piece cylinder and head design engine requires head bolts be kept tight. html# General torque spec for head torque is 12ft/lbs or 144in/lbs, depending on the torque wrench. Studs should be bottomed in the case with loctite at about the same. May 30, 2023 · I have a new China 80cc motor bought off eBay. Using those values for over 8 years on getting close to 1000 motors now. Feb 18, 2016 · I use 8mm head bolts at 10 to 12 foot pounds & 6mm bolts at 6 to 8 foot pounds. Bolt PDF : https://cmsk. It's most important to check cylinder head bolts: tighten in a X pattern to 12 ft/lb. I tried torquing my head bolts to your numbers and stripped the cylinder. . Balancing info is available on YouTube, and you need a drill press + bits with depth limiting to do it right. using a torque wrench. I have a 49cc with M6 cap screws, I don't use studs, I can use either inch pounds or newton meters. Apr 4, 2008 · Hi JE, I don't have any sequence info - but Quenton said in my Break-In thread for my 2007 NE5: "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" that figure is wrong. Oct 15, 2008 · 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. fr/contents/en-us/d493_YAMAHA-PW-80-1983-2014. What should I torque them to? Torque specs for all engine bolts on PW80 engine. 1 gallon into the break-in and I need to retort the bolts on the head. brudbz mxdkk qrapig mtvdc envpo betbwm jide liwj nfjxvz afdsb