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how do u break in a new engin

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Old Jun 10, 2004 | 10:06 PM
  #1  
BornToRide101's Avatar
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Default how do u break in a new engin

is it better to beat the crap out of it from the start or baby it, r there aney macanics out there that no the real answer?
 
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Old Jun 10, 2004 | 10:39 PM
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Default how do u break in a new engin

Somewhere in between all of that. The most important part is to go up through the gears at least 3/4 throttle each gear and upon each down shift allow the motor to rev down through each gear. Let the motor do the stopping not the brakes when possible. This helps to seat the rings better because the deceleration helps clean the oil off the cylinder walls. To slippery and the rings will never seat properly. To much babying and the rings will not seat properly as it takes excelleration to push the rings against the cylinder walls better, thus a better seating affect. So, basicaly somewhere between the pound the crap out of it and the babying it some like, imo.
 
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Old Jun 10, 2004 | 10:45 PM
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Default how do u break in a new engin

www.mototuneusa.com
 
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Old Jun 11, 2004 | 12:36 AM
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Default how do u break in a new engin

ya, http://www.mototuneusa.com/break_in_secrets.htm is a good source of info.
 
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Old Jun 11, 2004 | 05:21 AM
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Default how do u break in a new engin

Wshrdskin is right, basically you just need to work it in, run it through the gears, through the rpm range, but dont rev it too high for too long and if it doesnt feel like its ready to rev past a certain rpm, dont force it to do so, it'll work itself in over a few hours of riding. Even after it seems good dont work it too hard for the next 5-10 hours of riding. After that its all over, just change the plugs, drain and replace the oil and its ready to go.
 
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