Originally Posted by tyrslider
But the last thing you want to do is lug (rpms too low) the motor around during break in. Ride it, just don't ride it too far or too fast right out of the gate. I would reasonably expect the rings to be seated and the motor to be broken in after 1 gal of gas.
Yes, exactly!!! We would build up our MX bikes and run them stand still for 10-15 mins while reving gently just to make sure it didn't sound like a box full of rocks. 3.5 ounces to the gallon for the first tank. After the first 10-15 minutes at stand still we would take off and wing the crap out of them.
3 ounces of oil to the gallon there-after...never had a problem!
I didn't have any problems breaking in the motor on our shop bike. I went heavy on the oil 16:1 as recommended for the first tank and then changed the plug and went to a high grade of synthetic at 20:1. It works great!
BTW: My all time favorite road bikes were the RD series from Yamaha. They were light, handled well, and had a great power-to-weight ratio.