How to break in a new bike - 2T

[actonktm]

How do I break in my new 250 2 stroke?

[actonktm]

Read that the follwoing method is the best:

1. Start the bike, and allow it to idle for a few minutes until the engine is up to temperature. Do not lean the bike on its side stand, as this will cause the oil to collect in one side of the crank case. Use the center stand, or sit on the bike if it does not have one. Turn off the bike. An important characteristic of the running-in process is gradually increasing the periods of time for which the bike is running. Once it has cooled enough to touch, start it again.

2. Ride the machine for a short 5- to 10-minute run, keeping the throttle below 50 percent, and ensuring that all other components; brakes, shifting, steering, etc.; are all functioning OK. Return home, and allow the bike to cool down completely again. This will generally take at least 30 minutes, but the longer the better. You should be able to touch the pipes and radiator without feeling any residual heat.

3. Start the bike again, and head out for another ride. This time, the throttle can be pushed to 60 percent. After 10 to 15 minutes, return home again, and allow the bike to cool once more. Repeat this process another four times, increasing your throttle limit by 10 percent on each run, every time allowing the bike to cool down completely every time.

4. Ensure all fasteners are still fully tightened. Your two-stroke engine should now be ticking over smoothly. Allowing the engine to properly cool after each run helps small quantities of oil to act as a seal at the points where different components meet, reducing the possibility of damaging the pistons.

Tip

Keep the rev needle moving." This is the mantra of numerous mechanics on this subject. Do not hold the engine at a certain rev level, the idea is to utilize all of the engine's range, but to do it in a controlled and moderated manner.

[G-Bru]

3 Heat cycles then RIP it a new one dude!!!!!

G

[Dominic]

You need patient riding buddies who don't mind waiting around with you while your engine cools between heat cycles

[burls]

3 Heat cycles then RIP it a new one dude!!!!!

G

^ yep, tried and tested.

[actonktm]

Okay is this a three cycle that is okay - everyone says different things:

Let the bike warm up normally, then ride the bike for around 10-15 minutes at a decent pace but without over-revving the engine. Then let the bike cool down for around 20-30 minutes.

Then repeat this 3 times. On the 3rd, ride a little longer 15-20 minutes.

[mudeevee]

Looking at recent history, the most common method appears to be:

Take new bike to Wales
Throw it up and down plenty of muddy hills.
Job done - bike and rider broken in!

[burls]

Looking at recent history, the most common method appears to be:

Take new bike to Wales
Throw it up and down plenty of muddy hills.
Job done - bike and rider broken in!

Precisely. It's an art not a science!

[Luke B]

So..... 3 heat cycles ?? what do you hope achieve by using that or indeed any break in method ?