Dose this guy e any merritt to his clam of the best way to break in an engine is by running it hard from the start to bed the rings in?
http://www.mototuneusa.com/break_in_secrets.htm
http://www.mototuneusa.com/break_in_secrets.htm
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TwoJugs
Excess XS
I like to run a hard acceleration and a quick close of the throttle to create a vacuum. This helps to seat the rings in both directions. The most important part is to not stay at any one rpm for a long period of time. Excess heat builds up during break in so take turns heating different areas of the cylinder. The heating locations change with rpm's so adjust them often. There are many other factors involved too. With these motors they break in easy if all was done right on the build.
angus67
Welder's penetrate deeper!!
what concerns me is the statement about new advances in part production.
ive heard this before, and would use it on a modern bike, but our 650's are 30+ years old, and the parts we use to restore them might not even be as good as oem. i'd take it easy, but dont be afraid, either.
like jugs said, varying the rpms is prolly the most critical.
ive heard this before, and would use it on a modern bike, but our 650's are 30+ years old, and the parts we use to restore them might not even be as good as oem. i'd take it easy, but dont be afraid, either.
like jugs said, varying the rpms is prolly the most critical.
