
bluemonster1
LIFE MEMBER ONLY ONCE!!!
found this article,some good reading and info on breaking in your motors
http://www.mototuneusa.com/break_in_secrets.htm
http://www.mototuneusa.com/break_in_secrets.htm
Unless your pistons are "gas ported" the compression PINS the ring to the bottom of the ring groove and DOES NOT aid in pushing the ring against the cylinder walls... The "spring" in the ring is ALL YOU HAVE.. thats why ring gaps are so important!!! SOME RINGS are cut on an angle, which describes your action of "pushing" the TOP RING,,, but,, I haven't seen rings like that since the 1970's.. They didn't work too well because they kept getting stuck by the carbon buildup in the combustion chamber !!! (right above the top ring)Madmatt said:On two stroke engines I agree with Gary that synthetic oil is fine for break in. I disagree with his comment about ring "spring" because it is the compression that pushes the rings out against the cylinder wall and causes them to seal better. The "spring" in the ring is insignificant. The value in the Mototune article....and I think it is a great article....is in the "short hard burst" suggestion and the adequate cooling between cycles and not getting it too hot during actual break in.
Madmatt
nosboy said:Unless your pistons are "gas ported" the compression PINS the ring to the bottom of the ring groove and DOES NOT aid in pushing the ring against the cylinder walls... The "spring" in the ring is ALL YOU HAVE.. thats why ring gaps are so important!!! SOME RINGS are cut on an angle, which describes your action of "pushing" the TOP RING,,, but,, I haven't seen rings like that since the 1970's.. They didn't work too well because they kept getting stuck by the carbon buildup in the combustion chamber !!! (right above the top ring)