How to break in new crank / top end?

3 replies to this topic
  • B86_Racer

Posted September 22, 2004 - 03:35 AM


Putting a new crank/top end in my bro's bike. What would be the recommended way to break it all in? :cry: I was thinking ride it hard and change the oil immediately afterwards but I dont know

  • Butta

Posted September 22, 2004 - 03:58 AM


Well, if it's your BROTHER'S bike, then RIDE IT LIKE YOU STOLE IT!!!!!!!!!!!!!!!! :cry:

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  • Hamish

Posted September 22, 2004 - 04:13 AM


everyone will have a different opinionhere.
When I break in an engine I try and load it up a bit. Start off easy for the first 15min or so the use about 1/2 throttle short shifting. I dont mean load it up so that it's bogging down, just good accleration. Hills are good for a new engine. Try and avoid constant rpm's. Then step up to 3/4 etc etc. I always like to re check the shims, change the oil and check the filter after the first ride. Use a mineral oil for the first few oil changes. If all is well time to put it on kill :cry:

  • motocrosschump

Posted September 22, 2004 - 04:13 AM



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