Midlake Crisis
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- Location
- Bakersfield, CA
Are you supposed to follow"break in period" procedures when you redo a top-end only?
I can't stand this. I guess I'll do it right but I want to get riding again. I may have to buy Seymore's 550 just to get back on the water during the rebuild.
you come out to pismo yet?
Yamalube will work at a higher mixing ratio but it doesn't contain any detergent additives to aid ring-seating and carry away particles.
The SBT break-in oil is $9.75 a quart and highly recommended.
Proper break-in of your engine is the most critical aspect for determining the longevity and performance of your engine. Engines not properly broken-in will often fail within the first minutes of operation. Ring failure and piston seizure are the most common symptoms of an improper break-in procedure.
During the first 10 gallons of gasoline, there should be NO full throttle operation. First idle the engine for about 10 minutes to ensure that the engine is properly warmed-up. Then begin varying the throttle position up and down, up to 20% throttle for a half hour. Then come back and let the engine cool off completely - it should be a good 30 min break. After it cools down, you may now ride it up to 50% throttle for another half hour or so. Then come back again and let it completely cool down again. Now you can go out and ride up to 90% throttle. Continue this for the remainder of the 10 gallons, never holding one throttle position for more than a few seconds. Do not run at a steady throttle position and do not go to 100% throttle. After your first tank of gas, replace your plugs with fresh ones. For the second tank, you may ride normally with one exception - do not hold it at 100% throttle for more than a few seconds. After the second tank of gas, you are completely broken in and may ride anyway you like.
NONE of the engine break-in can be done out of the water!