I just bought a 150 yamaha sx150xtra and did a compression test.. 99-100 on all 6. The way I was taught to take test was to pull all wires from plugs so motor doesn't start then break all plugs and one at a time pulling, test and replace plug. I here some people start the motor instead of pulling wires so it doesn't start.. Is either way the right or wrong way? Pros and Cons? Would my comp. test have been higher if I didn't break all the plugs before pulling off 1 at a time.. I hear 120-125 readings on these motors.. Just want to make sure I dont have low comp.
Thanks
Thanks