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TOPIC: 2 stroke break in - new piston and rings

2 stroke break in - new piston and rings 4 years 3 months ago #90184

  • Chaser
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Looking for opinions on this. What do you guys do for your 2 stroke break in after changing piston and rings?

Doing my 250 XCw after 120 hours.

Thanks!
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Re:2 stroke break in - new piston and rings 4 years 3 months ago #90186

  • v8rman
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Vary your speed and rpm. Go through Heat cycles starting with 10 minutes and increase the time until you have about an hour solid on the motor. Or you could just ride it like you stole it. I know some guys that claim they break em in like they race em.
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Re:2 stroke break in - new piston and rings 4 years 3 months ago #90189

  • jeffboyd47m
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I have broke in many new bikes and motors at the races. While I wouldn't hold it WFO in 5th gear down a dirt road, I wouldn't baby it either. Read the link below.
JB

www.mototuneusa.com/break_in_secrets.htm
When in doubt "Throttle it!"
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Re:2 stroke break in - new piston and rings 4 years 3 months ago #90193

  • Chaser
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jeffboyd47m wrote:
I have broke in many new bikes and motors at the races. While I wouldn't hold it WFO in 5th gear down a dirt road, I wouldn't baby it either. Read the link below.
JB

www.mototuneusa.com/break_in_secrets.htm

I'll take your word for it, warm it up, then run it hard through 2,3 and 4th!! I plan to compression test just after break in to have a baseline to watch for wear going forward.

Thanks,
Chase
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Re:2 stroke break in - new piston and rings 4 years 3 months ago #90231

  • DEZFOX
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I just had my motor rebuilt.. As JB say Get the engine up to operating temp and go ride it . Thats how I've always broke in a new top end.
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Re:2 stroke break in - new piston and rings 4 years 3 months ago #90263

  • desertrat222
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DEZFOX wrote:
I just had my motor rebuilt.. As JB say Get the engine up to operating temp and go ride it . Thats how I've always broke in a new top end.

BACK AND FORTH TO THE START A FEW TIMES OUGHT TO DO HER LOL B) I NEVER BROKE DOWN AND NEVER BROKE IN A TOP END RIGHT.
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