These motors where brand new and never run. From it's first start I WOT the **** out of it going back and forth on ti's first 3 tanks of gas. I used spec oil mix on the first three tanks and show the results on each head, to show ya all what happens when you don't go easy on your new motor during the beark-in period! I do not have a purpose for these upper halves. So I figured this be a good View of the aftermath with 2 clean new uppers!
The Second motor is identical and has had the same spec oil mix used in it's first 3 tanks of gas! But I only went half throttle first 2 tanks of gas on and off in small bursts and the third tank I ran it like normal!
The first 2 tanks in each of these uppers I used organic oil for the break-in period @ 16:1 to seat the rings. The last tank of gas I ran 32:1 and used synthetic 2 stroke oil.
Wrong Break-in
Correct Break-in
The Second motor is identical and has had the same spec oil mix used in it's first 3 tanks of gas! But I only went half throttle first 2 tanks of gas on and off in small bursts and the third tank I ran it like normal!
The first 2 tanks in each of these uppers I used organic oil for the break-in period @ 16:1 to seat the rings. The last tank of gas I ran 32:1 and used synthetic 2 stroke oil.
Wrong Break-in