canalcat Member Local time 6:37 AM Joined Jan 12, 2015 Messages 80 Mar 28, 2021 #1 How do I find out the size of my piston measuring the top of it ? I believe it's 66 cc's . No markings on the engine any Senior help!!
How do I find out the size of my piston measuring the top of it ? I believe it's 66 cc's . No markings on the engine any Senior help!!
Chainlube Well-Known Member Local time 5:37 AM Joined Jan 5, 2020 Messages 10,121 Location Kelowna BC Mar 29, 2021 #2 You got it, best to measure it twice, once in line with the wrist pins and then across the wrist pins and take the average. But it will be someplace close to 47mm.
You got it, best to measure it twice, once in line with the wrist pins and then across the wrist pins and take the average. But it will be someplace close to 47mm.
YetiWoodz Well-Known Member Local time 8:37 AM Joined Dec 19, 2019 Messages 1,275 Location Pennsylvania Mar 29, 2021 #3 And 40mm is for the 49cc.