Straight from hammer performance
On your initial start-up, run the engine no longer than 10 seconds. Use a clock with a second hand or a stop watch. Don't guess! Shut it off and allow it to cool completely to room temperature. A little bit of patience now will go a long way to providing you with a strong motor that lasts a long time.
For your second heat cycle, run the motor no longer than 20 seconds. Again, time it properly, don't guess. Allow it to cool completely.
Repeat these heat and cool cycles with run times of 30 and 40 seconds.
You're now ready for your first ride. Keep the rpm's down as much as possible and keep air flowing across the cylinders. Ride it no more than a mile, shut it down, and let it cool completely
For your second ride, treat it similarly gently. Keep your rpm's below 3500 and keep air moving across the cylinders. Ride it a couple miles and let it cool completely.
For the next 50 miles, do not exceed 3500rpm and avoid using full throttle. Vary your speeds, allowing the engine to pull and then decelerate gradually. This reversal on the rings, from pressure to vacuum, assists in the seating process.
For the next 500 miles, stay below 4000rpm, avoid using full throttle, and keep the heat down.
Once you're past the 500 mile break-in period, change your oil. During break-in, the rings have carved the cylinders into their shape and the shavings have been captured in the oil, so you want to change the oil to get that stuff out. Use any high quality 20W-50 oil formulated for air-cooled V-Twin engines.
Have your bike professionally dyno tuned. Proper tuning is critical to maximum power, long life, and good gas mileage. It makes no sense at all to spend thousands on motor work and then leave power on the table, and put it all at risk, because you didn't spend a couple hundred on a proper dyno tune.
You are now ready to enjoy the full power of your new engine kit!
On your initial start-up, run the engine no longer than 10 seconds. Use a clock with a second hand or a stop watch. Don't guess! Shut it off and allow it to cool completely to room temperature. A little bit of patience now will go a long way to providing you with a strong motor that lasts a long time.
For your second heat cycle, run the motor no longer than 20 seconds. Again, time it properly, don't guess. Allow it to cool completely.
Repeat these heat and cool cycles with run times of 30 and 40 seconds.
You're now ready for your first ride. Keep the rpm's down as much as possible and keep air flowing across the cylinders. Ride it no more than a mile, shut it down, and let it cool completely
For your second ride, treat it similarly gently. Keep your rpm's below 3500 and keep air moving across the cylinders. Ride it a couple miles and let it cool completely.
For the next 50 miles, do not exceed 3500rpm and avoid using full throttle. Vary your speeds, allowing the engine to pull and then decelerate gradually. This reversal on the rings, from pressure to vacuum, assists in the seating process.
For the next 500 miles, stay below 4000rpm, avoid using full throttle, and keep the heat down.
Once you're past the 500 mile break-in period, change your oil. During break-in, the rings have carved the cylinders into their shape and the shavings have been captured in the oil, so you want to change the oil to get that stuff out. Use any high quality 20W-50 oil formulated for air-cooled V-Twin engines.
Have your bike professionally dyno tuned. Proper tuning is critical to maximum power, long life, and good gas mileage. It makes no sense at all to spend thousands on motor work and then leave power on the table, and put it all at risk, because you didn't spend a couple hundred on a proper dyno tune.
You are now ready to enjoy the full power of your new engine kit!